概述
数据手册
替代型号DS75U 概述
Digital Thermometer and Thermostat 数字温度计和温度监控器 温度传感器
DS75U 数据手册
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PDF下载DS75
Digital Thermometer and Thermostat
www.maxim-ic.com
FEATURES
PIN ASSIGNMENT
Temperature Measurements Require No
External Components
8
VDD
A0
SDA
1
2
3
4
Measures Temperatures from -55°C to
+125°C (-67°F to +257°F)
±2°C Accuracy Over a -25°C to +100°C
Range
7
6
5
SCL
O.S.
GND
A1
A2
Thermometer Resolution is User-
Configurable from Nine (Default) to 12 Bits
(0.5°C to 0.0625°C Resolution)
9-Bit Conversion Time is 150ms (Max)
Thermostatic Settings are User-Definable
Data is Read/Written Via 2-Wire Serial
(Interface (SDA and SCL Pins)
DS75S+ (8-Pin SO — 150mil)
8
1
2
3
VDD
A0
SDA
SCL
O.S.
GND
7
6
5
A1
4
A2
Multidrop Capability Simplifies Distributed
Temperature-Sensing Applications
Wide Power-Supply Range (+2.7V to
+5.5V).
Pin/software Compatible with the LM75
Available in 8-Pin μMAX® and SO
Packages. See Table 1 for Ordering
Information
DS75U+ (μMAX)
PIN DESCRIPTION
SDA – Open-Drain Data I/O
SCL – Clock Input
GND – Ground
O.S. – Open-Drain Thermostat Output
Applications Include Personal Computers,
Cellular Base Stations, Office Equipment, or
Any Thermally Sensitive System
A0
A1
A2
– Address Input
– Address Input
– Address Input
V DD – Power Supply
DESCRIPTION
The DS75 digital thermometer and thermostat provides 9, 10, 11, or 12-bit digital temperature readings
over a -55°C to +125°C range with ±2°C accuracy over a -25°C to +100°C range. At power-up, the
DS75 defaults to 9-bit resolution for software compatibility with the LM75. Communication with the
DS75 is achieved via a simple 2–wire serial interface. Three address pins allow up to eight DS75 devices
to operate on the same 2–wire bus, which greatly simplifies distributed temperature sensing applications.
The DS75 thermostat has a dedicated open–drain output (O.S.) and programmable fault tolerance, which
allows the user to define the number of consecutive error conditions that must occur before O.S is
activated. There are two thermostatic operating modes that control thermostat operation based on user-
defined trip-points (TOS and THYST).
A block diagram of the DS75 is shown in Figure 1 and detailed pin descriptions are given in Table 2.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
1 of 14
022108
DS75
Table 1. ORDERING INFORMATION
ORDERING
NUMBER
DS75S+
PACKAGE
MARKING
DESCRIPTION
DS75 (see note) DS75 in Lead-Free 150mil 8-Pin SO
DS75S+T&R DS75 (see note) DS75 in Lead-Free 150mil 8-Pin SO, 2500-Piece Tape-and-Reel
DS75U+
DS75 (see note)
DS75 in Lead-Free 8-Pin μMAX
DS75U+T&R DS75 (see note)
DS75 in Lead-Free 8-Pin μMAX, 3000-Piece Tape-and-Reel
DS75 in 150mil 8-Pin SO
DS75 in 150mil 8-Pin SO, 2500-Piece Tape-and-Reel
DS75S
DS75
DS75
DS75
DS75S/T&R
DS75U
DS75 in 8-Pin μMAX
DS75U/T&R DS75
DS75 in 8-Pin μMAX, 3000-Piece Tape-and-Reel
Note: A "+" symbol will also be marked on the package near the Pin 1 indicator
Table 2. DETAILED PIN DESCRIPTION
PIN
1
2
3
4
SYMBOL DESCRIPTION
SDA
SCL
O.S.
GND
A2
Data input/output pin for 2-wire serial communication port. Open drain.
Clock input pin for 2-wire serial communication port.
Thermostat output. Open drain.
Ground pin.
5
Address input pin.
6
A1
Address input pin.
7
A0
Address input pin.
8
VDD
Supply Voltage. +2.7V to +5.5V supply pin.
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DS75
Figure 1. DS75 FUNCTIONAL BLOCK DIAGRAM
PRECISION
REFERENCE
OVERSAMPLING
MODULATOR
DIGITAL
DECIMATOR
VDD
CONFIGURATION
REGISTER
SCL
SDA
ADDRESS
AND
I/O CONTROL
TEMPERATURE
REGISTER
A0
A1
A2
RP
O.S.
TOS AND THYST
REGISTERS
THERMOSTAT
COMPARATOR
GND
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DS75
ABSOLUTE MAXIMUM RATINGS*
Voltage on VDD, Relative to Ground
Voltage on any other pin, Relative to Ground
Operating Temperature
–0.3V to +7.0V
–0.3V to (V DD + 0.3V)
–55°C to +125°C
Storage Temperature
–55°C to +125°C
Soldering Temperature
+260°C for 10 seconds
* These are stress ratings only and functional operation of the device at these or any other conditions
above those indicated in the operation sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect reliability.
DC ELECTRICAL CHARACTERISTICS
(-55°C to +125°C; 2.7V ≤ VDD ≤ 5.5V)
PARAMETER
SYMBOL CONDITION
MIN
MAX
5.5
UNITS NOTES
Supply Voltage
VDD
2.7
V
-25 to +100
-55 to +125
± 2.0
± 3.0
Thermometer Error
TERR
2
°C
Input Logic High
Input Logic Low
SDA Output Logic Low
Voltage
VIH
VIL
VOL1
0.7VDD
-0.5
VDD+0.5
0.3VDD
V
V
V
1
1
1
3 mA sink
current
6 mA sink
current
4 mA sink
current
0.4 < VI/O<
0.9 VDD
0
0
0.4
0.6
0.8
+10
VOL2
O.S. Saturation Voltage
VOL
V
1, 2
Input current each I/O
pin
-10
μA
I/O Capacitance
Standby Current
CI/O
IDD1
10
1
pF
µA
3, 4
3, 4
Active Temp.
Conversions
Communica-
tion only
1000
100
Active Current
IDD
µA
4 of 14
DS75
AC ELECTRICAL CHARACTERISTICS
(-55°C to +125°C; 2.7V ≤ VDD ≤ 5.5V)
PARAMETER
SYMBOL CONDITION
MIN
TYP MAX UNITS NOTES
Resolution
9
12
bits
Temperature
tCONVT
9-bit
150
ms
Conversion Time
conversions
10-bit
300
600
conversions
11-bit
conversions
12-bit
conversions
1200
400
SCL Frequency
Bus Free Time
fSCL
tBUF
KHz
μs
1.3
0.6
5
Between a STOP and
START Condition
START and Repeated
START Hold Time
from Falling SCL
Low Period of SCL
High Period of SCL
Repeated START
Condition Setup Time
to Rising SCL
tHD:STA
5, 6
μs
tLOW
tHIGH
tSU:STA
1.3
0.6
0.6
5
5
5
μs
μs
μs
Data-Out Hold Time
from Falling SCL
Data-In Setup Time to
Rising SCL
Rise Time of SDA and
SCL
Fall Time of SDA and
SCL
STOP Setup Time to
Rising SCL
tHD:DAT
tSU:DAT
tR
0
0.9
5
5
μs
ns
ns
ns
100
20 + 0.1CB
20 + 0.1CB
0.6
5, 7
5, 7
5
1000
300
tF
tSU:STO
CB
μs
pF
pF
Capacitive Load for
Each Bus Line
Input Capacitance
400
CI
5
NOTES:
1. All voltages are referenced to ground.
2. Internal heating caused by O.S. loading will cause the DS75 to read approximately 0.5°C higher if
O.S. is sinking the max rated current.
3. IDD specified with O.S. pin open.
4. IDD specified with VDD at 5.0V and SDA, SCL = 5.0V, 0°C to 70°C.
5. See Timing Diagram in Figure 2. All timing is referenced to 0.9 x VDD and 0.1 x VDD.
6. After this period, the first clock pulse is generated.
7. For example, if CB = 300pF, then tR[min] = tF[min] = 50ns.
5 of 14
DS75
Figure 2. TIMING DIAGRAM
Note: The DS75 does not delay the SDA line internally with respect to SCL for any length of time.
OPERATION–MEASURING TEMPERATURE
The DS75 measures temperature using a bandgap temperature sensing architecture. An on-board delta-
sigma analog-to-digital converter (ADC) converts the measured temperature to a digital value that is
calibrated in degrees centigrade; for Fahrenheit applications a lookup table or conversion routine must be
used. The DS75 is factory-calibrated and requires no external components to measure temperature.
At power-up the DS75 immediately begins measuring the temperature and converting the temperature to
a digital value. The resolution of the digital output data is user-configurable to 9, 10, 11, or 12 bits,
corresponding to temperature increments of 0.5°C, 0.25°C, 0.125°C, and 0.0625°C, respectively, with 9-
bit default resolution at power-up. The resolution is controlled via the R0 and R1 bits in the configuration
register as explained in the CONFIGURATION REGISTER section of this data sheet. Note that the
conversion time doubles for each additional bit of resolution.
After each temperature measurement and analog-to-digital conversion, the DS75 stores the temperature as
a 16-bit two’s complement number in the 2-byte temperature register (see Figure 3). The sign bit (S)
indicates if the temperature is positive or negative: for positive numbers S = 0 and for negative numbers S
= 1. The most recently converted digital measurement can be read from the temperature register at any
time. Since temperature conversions are performed in the background, reading the temperature register
does not affect the operation in progress.
Bits 3 through 0 of the temperature register are hardwired to 0. When the DS75 is configured for 12-bit
resolution, the 12 MSbs (bits 15 through 4) of the temperature register will contain temperature data. For
11-bit resolution, the 11 MSbs (bits 15 through 5) of the temperature register will contain data, and bit 4
will read out as 0. Likewise, for 10-bit resolution, the 10 MSbs (bits 15 through 6) will contain data, and
for 9-bit the 9 MSbs (bits 15 through 7) will contain data, and all unused LSbs will contain 0s. Table 3
gives examples of 12-bit resolution digital output data and the corresponding temperatures.
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DS75
Figure 3. TEMPERATURE, TH, and TL REGISTER FORMAT
bit 15
bit 14
bit 13
bit 12
bit 11
bit 10
bit 9
bit 8
MS Byte
LS Byte
S
26
25
24
23
22
21
20
bit 7
2-1
bit 6
2-2
bit 5
2-3
bit 4
2-4
bit 3
bit 2
bit 1
bit 0
0
0
0
0
Table 3. 12-BIT RESOLUTION TEMPERATURE/DATA RELATIONSHIP
TEMPERATURE
DIGITAL OUTPUT
(BINARY)
DIGITAL OUTPUT
(HEX)
(°C)
+125
+25.0625
+10.125
+0.5
0111 1101 0000 0000
0001 1001 0001 0000
0000 1010 0010 0000
0000 0000 1000 0000
0000 0000 0000 0000
1111 1111 1000 0000
1111 0101 1110 0000
1110 0110 1111 0000
1100 1001 0000 0000
7D00h
1910h
0A20h
0080h
0000h
FF80h
F5E0h
E6F0h
C900h
0
-0.5
-10.125
-25.0625
-55
SHUTDOWN MODE
For power-sensitive applications, the DS75 offers a low-power shutdown mode. The SD bit in the
configuration register controls shutdown mode. When SD is changed to 1, the conversion in progress
will be completed and the result stored in the temperature register after which the DS75 will go into a
low-power standby state. The O.S. output will be cleared if the thermostat is operating in interrupt mode
and O.S will remain unchanged in comparator mode. The 2-wire interface remains operational in
shutdown mode, and writing a 0 to the SD bit returns the DS75 to normal operation.
OPERATION–THERMOSTAT
The DS75 thermostat has two operating modes, comparator mode and interrupt mode, which activate and
deactivate the open-drain thermostat output (O.S.) based on user-programmable trip-points (TOS and
THYST). The DS75 powers up with the thermostat in comparator mode with active-low O.S. polarity and
with the over-temperature trip-point (TOS) register set to 80°C and the hysteresis trip-point (THYST
)
register set to 75°C. If these power-up settings are compatible with the application, the DS75 can be used
as a standalone thermostat (i.e., no 2–wire communication required). If interrupt mode operation, active-
high O.S. polarity or different TOS and THYST values are desired, they must be programmed after power-
up, so standalone operation is not possible.
In both operating modes, the user can program the thermostat fault tolerance, which sets how many
consecutive temperature readings (1, 2, 4, or 6) must fall outside of the thermostat limits before the
thermostat output is triggered. The fault tolerance is set by the F1 and F0 bits in the configuration and at
power-up the fault tolerance is 1.
The data format of the TOS and THYST registers is identical to that of the temperature register (see Figure
3), i.e., a two-byte two’s complement representation of the trip-point temperature in degrees centigrade
with bits 3 through 0 hardwired to 0. After every temperature conversion, the measured temperature is
7 of 14
DS75
compared to the values in the TOS and THYST registers, and then O.S. is updated based on the result of the
comparison and the operating mode. The number of TOS and THYST bits used during the thermostat
comparison is equal to the conversion resolution set by the R1 and R0 bits in the configuration register.
For example, it the resolution is 9 bits, only the 9 MSbs of TOS and THYST will be used by the thermostat
comparator.
The active state of the O.S. output can be changed via the POL bit in the configuration register. The
power-up default is active low.
If the user does not wish to use the thermostat capabilities of the DS75, the O.S. output should be left
floating. Note that if the thermostat is not used, the TOS and THYST registers can be used for general
storage of system data.
Comparator Mode — When the thermostat is in comparator mode, O.S. can be programmed to operate
with any amount of hysteresis. The O.S. output becomes active when the measured temperature exceeds
the TOS value a consecutive number of times as defined by the F1 and F0 fault tolerance (FT) bits in the
configuration register. O.S. then stays active until the first time the temperature falls below the value
stored in THYST. Putting the device into shutdown mode does not clear O.S. in comparator mode.
Thermostat comparator mode operation with FT = 2 is illustrated in Figure 4.
Interrupt Mode — In interrupt mode, the O.S. output first becomes active when the measured
temperature exceeds the TOS value a consecutive number of times equal to the FT value in the
configuration register. Once activated, O.S. can only be cleared by either putting the DS75 into shutdown
mode or by reading from any register (temperature, configuration, TOS, or THYST ) on the device. Once
O.S. has been deactivated, it will only be reactivated when the measured temperature falls below the
THYST value a consecutive number of times equal to the FT value. Again, O.S can only be cleared by
putting the device into shutdown mode or reading any register. Thus, this interrupt/clear process is
cyclical between TOS and THYST events (i.e, TOS, clear, THYST, clear, TOS, clear, THYST, clear, etc.).
Thermostat interrupt mode operation with FT = 2 is illustrated in Figure 4.
Figure 4. O.S. OUTPUT OPERATION EXAMPLE
In this example the DS75
is configured to have a
TOS
fault tolerance of 2.
Temperature
THYST
Inactive
O.S. Output - Comparator Mode
Active
Inactive
O.S. Output - Interrupt Mode
Active
Assumes a read
has occurred
Conversions
8 of 14
DS75
CONFIGURATION REGISTER
The configuration register allows the user to program various DS75 options such as conversion
resolution, thermostat fault tolerance, thermostat polarity, thermostat operating mode, and shutdown
mode. The configuration register is arranged as shown in Figure 5 and detailed descriptions of each bit
are provided in Table 4. The user has read/write access to all bits in the configuration register except the
MSb, which is a reserved read-only bit. The entire register is volatile, and thus powers–up in its default
state.
Figure 5. CONFIGURATION REGISTER
MSb
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
LSb
0
R1
R0
F1
F0
POL
TM
SD
Table 4. CONFIGURATION REGISTER BIT DESCRIPTIONS
BIT NAME
FUNCTIONAL DESCRIPTION
Power-up state = 0
0
Reserved
The master can write to this bit, but it will always read out as a 0.
R1
Power-up state = 0
Conversion Resolution Bit 1
R0
Sets conversion resolution (see Table 5)
Power-up state = 0
Conversion Resolution Bit 0
F1
Sets conversion resolution (see Table 5)
Power-up state = 0
Thermostat Fault Tolerance Bit 1 Sets the thermostat fault tolerance (see Table 6).
F0
Power-up state = 0
Thermostat Fault Tolerance Bit 0 Sets the thermostat fault tolerance (see Table 6).
POL
Power-up state = 0
Thermostat Output (O.S.) Polarity POL = 0 — O.S. is active low.
POL = 1 — O.S. is active high.
TM
Power-up state = 0
Thermostat Operating Mode
TM = 0 — Comparator mode.
TM = 1 — Interrupt mode.
See the OPERATION–Thermostat section for a detailed description
of these modes.
SD
Power-up state = 0
Shutdown
SD = 0 — Active conversion and thermostat operation.
SD = 1 — Shutdown mode.
See the SHUTDOWN MODE section for a detailed description of
this mode.
Table 5. RESOLUTION CONFIGURATION
R1
R0 THERMOMETER MAX CONVERSION
RESOLUTION
9–bit
TIME
150 ms
300 ms
600 ms
1200 ms
0
0
1
1
0
1
0
1
10–bit
11–bit
12–bit
9 of 14
DS75
Table 6. Fault Tolerance Configuration
F1
F0
CONSECUTIVE OUT-OF-LIMITS
CONVERSIONS TO TRIGGER O.S.
0
0
1
1
0
1
0
1
1
2
4
6
REGISTER POINTER
The four DS75 registers each have a unique two-bit pointer designation, which is defined in Table 7.
When reading from or writing to the DS75, the user must “point” the DS75 to the register that is to be
accessed. When reading from the DS75, once the pointer is set, it will remain pointed at the same register
until it is changed. For example, if the user desires to perform consecutive reads from the temperature
register, then the pointer only has to be set to the temperature register one time, after which all reads will
automatically be from the temperature register until the pointer value is changed. On the other hand,
when writing to the DS75, the pointer value must be refreshed each time a write is performed even if the
same register is being written to twice in a row.
At power-up, the default pointer value is the temperature register so the temperature register can be read
immediately without resetting the pointer.
Changes to the pointer setting are accomplished as described in the 2-WIRE SERIAL DATA BUS section
of this datasheet.
Table 7. POINTER DEFINITION
REGISTER
Temperature
Configuration
THYST
P1
0
0
P0
0
1
1
0
TOS
1
1
2-WIRE SERIAL DATA BUS
The DS75 communicates over a standard bi-directional 2-wire serial data bus that consists of a serial
clock (SCL) signal and serial data (SDA) signal. The DS75 interfaces to the bus via the SCL input pin
and open-drain SDA I/O pin. All communication is MSb first.
The following terminology is used to describe 2-wire communication:
Master Device: Microprocessor/microcontroller that controls the slave devices on the bus. The master
device generates the SCL signal and START and STOP conditions.
Slave: All devices on the bus other than the master. The DS75 always functions as a slave.
Bus Idle or Not Busy: Both SDA and SCL remain high. SDA is held high by a pullup resistor when the
bus is idle, and SCL must either be forced high by the master (if the SCL output is push-pull) or pulled
high by a pullup resistor (if the SCL output is open-drain).
Transmitter: A device (master or slave) that is sending data on the bus.
Receiver: A device (master or slave) that is receiving data from the bus.
10 of 14
DS75
START Condition: Signal generated by the master to indicate the beginning of a data transfer on the
bus. The master generates a START condition by pulling SDA from high to low while SCL is high (see
Figure 6). A “repeated” START is sometimes used at the end of a data transfer (instead of a STOP) to
indicate that the master will perform another operation.
STOP Condition: Signal generated by the master to indicate the end of a data transfer on the bus. The
master generates a STOP condition by transitioning SDA from low to high while SCL is high (see Figure
6). After the STOP is issued, the master releases the bus to its idle state.
Acknowledge (ACK): When a device (either master or slave) is acting as a receiver, it must generate an
acknowledge (ACK) on the SDA line after receiving every byte of data. The receiving device performs an
ACK by pulling the SDA line low for an entire SCL period (see Figure 6). During the ACK clock cycle,
the transmitting device must release SDA. A variation on the ACK signal is the “not acknowledge”
(NACK). When the master device is acting as a receiver, it uses a NACK instead of an ACK after the last
data byte to indicate that it is finished receiving data. The master indicates a NACK by leaving the SDA
line high during the ACK clock cycle.
Slave Address: Every slave device on the bus has a unique 7-bit address that allows the master to access
that device. The DS75’s 7-bit bus address is 1 0 0 1 A2 A1 A0, where A2, A1 and A0 are user-selectable via
the corresponding input pins. The three address pins allow up to eight DS75s to be multi-dropped on the
same bus.
Address Byte: The control byte is transmitted by the master and consists of the 7-bit slave address plus a
read/write (R/¯W¯) bit (see Figure 7). If the master is going to read data from the slave device then R/¯W¯ =
1, and if the master is going to write data to the slave device then R/¯W¯ = 0.
Pointer Byte: The pointer byte is used by the master to tell the DS75 which register is going to be
accessed during communication. The six LSbs of the pointer byte (see Figure 8) are always 0 and the two
LSbs correspond to the desired register as shown in Table 7.
Figure 6. START, STOP, AND ACK SIGNALS
SDA
SCL
STOP
Condition
START
Condition
ACK (or NACK)
From Receiver
Figure 7. ADDRESS BYTE
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
1
0
0
1
A2
A1
A0
R/¯W¯
Figure 8. POINTER BYTE
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
11 of 14
DS75
0
0
0
0
0
0
P1
P0
GENERAL 2-WIRE INFORMATION
All data is transmitted MSb first over the 2-wire bus.
One bit of data is transmitted on the 2-wire bus each SCL period.
A pullup resistor is required on the SDA line and, when the bus is idle, both SDA and SCL must remain
in a logic-high state.
All bus communication must be initiated with a START condition and terminated with a STOP
condition. During a START or STOP is the only time SDA is allowed to change states while SCL is
high. At all other times, changes on the SDA line can only occur when SCL is low: SDA must remain
stable when SCL is high.
After every 8-bit (1-byte) transfer, the receiving device must answer with an ACK (or NACK), which
takes one SCL period. Therefore, nine clocks are required for every one-byte data transfer.
Writing to the DS75—To write to the DS75, the master must generate a START followed by an
address byte containing the DS75 bus address. The value of the R/W bit must be a 0, which indicates that
a write is about to take place. The DS75 will respond with an ACK after receiving the address byte. This
must be followed by a pointer byte from the master, which tells the DS75 which register is being written
to. The DS75 will again respond with an ACK after receiving the pointer byte. Following this ACK the
master device must immediately begin transmitting data to the DS75. When writing to the configuration
register, the master must send one byte of data (see Figure 9a), and when writing to the TOS or THYST
registers the master must send two bytes of data (see Figure 9b). After receiving each data byte, the DS75
will respond with an ACK, and the transaction is finished with a STOP from the master.
Reading from the DS75—When reading from the DS75, if the pointer was already pointed to the
desired register during a previous transaction, the read can be performed immediately without changing
the pointer setting. In this case the master sends a START followed by an address byte containing the
DS75 bus address. The R/W bit must be a 1, which tells the DS75 that a read is being performed. After
the DS75 sends an ACK in response to the address byte, the DS75 will begin transmitting the requested
data on the next clock cycle. When reading from the configuration register, the DS75 will transmit one
byte of data, after which the master must respond with a NACK followed by a STOP (see Figure 9c). For
two-byte reads (i.e., from the Temperature, TOS or THYST register), the DS75 will transmit two bytes of
data, and the master must respond to the first data byte with an ACK and to the second byte with a NACK
followed by a STOP (see Figure 9d). If only the most significant byte of data is needed, the master can
issue a NACK followed by a STOP after reading the first data byte in which case the transaction will be
the same as for a read from the configuration register.
If the pointer is not already pointing to the desired register, the pointer must first be updated as shown in
Figure 9e, which shows a pointer update followed by a single-byte read. The value of the R/W bit in the
initial address byte is a 0 (“write”) since the master is going to write a pointer byte to the DS75. After the
DS75 to the address byte with an ACK, the master sends a pointer byte that corresponds to the desired
register. The master must then perform a repeated start followed by a standard one or two byte read
sequence (with R/W =1) as described in the previous paragraph.
12 of 14
DS75
Figure 9. 2-WIRE INTERFACE TIMING
13 of 14
DS75
REVISION HISTORY
REVISION
PAGES
CHANGED
DESCRIPTION
DATE
Deleted all references to flip-chip package.
Added registered trademark symbol to µMAX.
022108
1, 2
14 of 14
DS75U CAD模型
引脚图
封装焊盘图
DS75U 相关器件
| 型号 | 制造商 | 描述 | 价格 | 文档 |
| DS75U+ | MAXIM | Digital Thermometer and Thermostat | 获取价格 |
|
| DS75U+T&R | MAXIM | Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, CMOS, Square, 8 Pin, Surface Mount, LEAD FREE, MICRO MAX PACKAGE-8 | 获取价格 |
|
| DS75U+T&R | MAXIM | Digital Thermometer and Thermostat | 获取价格 |
|
| DS75U-C12+T&R | MAXIM | Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, Square, Surface Mount, LEAD FREE, MICRO MAX PACKAGE-8 | 获取价格 |
|
| DS75U/T&R | MAXIM | Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, CMOS, Square, 8 Pin, Surface Mount, MICRO MAX PACKAGE-8 | 获取价格 |
|
| DS75X/T&R | MAXIM | Serial Switch/Digital Sensor, 12 Bit(s), 2Cel, CMOS, Square, Surface Mount, 1.50 X 1.30 MM, FLIP CHIP-8 | 获取价格 |
|
| DS760SL-3 | ARTESYN | 760 Watts Bulk Front End | 获取价格 |
|
| DS760SL-3-001 | ARTESYN | 760 Watts Bulk Front End | 获取价格 |
|
| DS760SL-3-002 | ARTESYN | 760 Watts Bulk Front End | 获取价格 |
|
| DS760SL-3-003 | ARTESYN | 760 Watts Bulk Front End | 获取价格 |
|
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