CY22E016L-SZ25IT [CYPRESS]

Non-Volatile SRAM, 2KX8, 25ns, CMOS, PDSO28, 0.300 INCH, ROHS COMPLIANT, MO-119, SOIC-28;
CY22E016L-SZ25IT
型号: CY22E016L-SZ25IT
厂家: CYPRESS    CYPRESS
描述:

Non-Volatile SRAM, 2KX8, 25ns, CMOS, PDSO28, 0.300 INCH, ROHS COMPLIANT, MO-119, SOIC-28

静态存储器 光电二极管 内存集成电路
文件: 总14页 (文件大小:557K)
中文:  中文翻译
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ADVANCE  
INFORMATION  
CY22E016L  
16-Kbit (2K x 8) nvSRAM  
• SOIC Package  
Features  
• RoHS Compliance  
• 25 ns, 35 ns and 45 ns Access Times  
Functional Description  
• “Hands-off” Automatic STORE on Power Down with  
only a small capacitor  
The Cypress CY22E016L is a fast static RAM with a nonvol-  
atile element incorporated in each static memory cell. The  
SRAM can be read and written an unlimited number of times,  
while independent, nonvolatile data resides in Nonvolatile  
Elements. Data transfers from the SRAM to the Nonvolatile  
Elements (the STORE operation) can take place automatically  
on power down. A 68-µF or larger capacitor tied from VCAP to  
ground guarantees the STORE operation, regardless of  
power-down slew rate or loss of power from “hot swapping”.  
Transfers from the Nonvolatile Elements to the SRAM (the  
RECALL operation) take place automatically on restoration of  
power. A hardware STORE may be initiated with the HSB pin.  
STORE to QuantumTrap® Nonvolatile Elements is  
initiated by Hardware or Autostore®on Power-down  
RECALL to SRAM Initiated on Power-up  
• Unlimited READ, WRITE and RECALL Cycles  
• 10 mA Typical ICC at 200 ns Cycle Time  
• 1,000,000 STORE Cycles to QuantumTrap  
• 100-Year Data Retention to QuantumTrap  
• Single 5V Operation +10%  
• Industrial Temperature  
Logic Block Diagram  
OE  
CE  
WE  
Cypress Semiconductor Corporation  
Document #: 001-06727 Rev. *A  
198 Champion Court  
San Jose, CA 95134-1709  
408-943-2600  
Revised February 22, 2006  
ADVANCE  
INFORMATION  
CY22E016L  
Pin Configurations  
V
V
CC  
1
2
CAP  
NC  
WE  
A
A
6
3
4
5
6
7
8
HSB  
A
8
7
A
5
A
9
A
NC  
OE  
A
10  
4
A
28-SOIC  
Top View  
(not to scale)  
3
A
2
A
1
9
10  
CE  
DQ7  
A
0
11  
12  
13  
14  
DQ0  
DQ1  
DQ2  
DQ6  
DQ5  
DQ4  
DQ3  
V
SS  
Pin Definitions  
Pin Name  
I/O Type  
Description  
Address Inputs used to select one of the 131,072 bytes of the nvSRAM.  
A0–A10  
Input  
DQ0-DQ7 Input/Output Bidirectional Data I/O lines. Used as input or output lines depending on operation.  
WE  
Input  
Write Enable Input, active LOW. When selected LOW, enables data on the I/O pins to be written to  
the address location latched by the falling edge of CE.  
CE  
OE  
Input  
Input  
Chip Enable Input, active LOW. When LOW, selects the chip. When HIGH, deselects the chip.  
Output Enable, active LOW. The active LOW OE input enables the data output buffers during read  
cycles. Deasserting OE HIGH causes the I/O pins to tri-state.  
VSS  
VCC  
HSB  
Ground  
Ground for the device. Should be connected to ground of the system.  
Power Supply Power Supply inputs to the device.  
Input/Output Hardware Store Busy. When low this output indicates a Hardware Store is in progress. When pulled  
low external to the chip it will initiate a nonvolatile STORE operation. A weak internal pull-up resistor  
keeps this pin high if not connected. (Connection Optional)  
VCAP  
NC  
Power Supply Autostore® Capacitor. Supplies power to nvSRAM during power loss to store data from SRAM to  
nonvolatile elements.  
No Connect No Connects. This pin is not connected to the die  
Device Operation  
SRAM Read  
The CY22E016L nvSRAM is made up of two functional  
components paired in the same physical cell. These are a  
SRAM memory cell and a nonvolatile QuantumTrap cell. The  
SRAM memory cell operates as a standard fast static RAM.  
Data in the SRAM can be transferred to the nonvolatile cell  
(the STORE operation), or from the nonvolatile cell to SRAM  
(the RECALL operation). This unique architecture allows all  
cells to be stored and recalled in parallel. During the STORE  
and RECALL operations SRAM READ and WRITE operations  
are inhibited. The CY22E016L supports unlimited reads and  
writes just like a typical SRAM. In addition, it provides unlimited  
RECALL operations from the nonvolatile cells and up to  
1 million STORE operations.  
The CY22E016L performs a READ cycle whenever CE and  
OE are low while WE and HSB are high. The address specified  
on pins A0–10 determines which of the 2048 data bytes will be  
accessed. When the READ is initiated by an address  
transition, the outputs will be valid after a delay of tAA (READ  
cycle #1). If the READ is initiated by CE or OE, the outputs will  
be valid at tACE or at tDOE, whichever is later (READ cycle #2).  
The data outputs will repeatedly respond to address changes  
within the tAA access time without the need for transitions on  
any control input pins, and will remain valid until another  
address change or until CE or OE is brought high, or WE or  
HSB is brought low.  
Document #: 001-06727 Rev. *A  
Page 2 of 14  
ADVANCE  
INFORMATION  
CY22E016L  
SRAM Write  
A WRITE cycle is performed whenever CE and WE are low  
and HSB is high. The address inputs must be stable prior to  
entering the WRITE cycle and must remain stable until either  
CE or WE goes high at the end of the cycle. The data on the  
common I/O pins I/O0–7 will be written into the memory if it is  
valid tSD before the end of a WE controlled WRITE or before  
the end of an CE controlled WRITE. It is recommended that  
OE be kept high during the entire WRITE cycle to avoid data  
bus contention on common I/O lines. If OE is left low, internal  
circuitry will turn off the output buffers tHZWE after WE goes  
low.  
AutoStore Operation  
During normal AutoStore operation, the CY22E016L will draw  
current from VCC to charge a capacitor connected to the VCAP  
pin. This stored charge will be used by the chip to perform a  
single STORE operation. After power up, when the voltage on  
the VCAP pin drops below VSWITCH, the part will automatically  
disconnect the VCAP pin from VCC and initiate a STORE  
operation.  
Figure 2. System Power Mode  
Figure 1 shows the proper connection of the storage capacitor  
(VCAP) for automatic store operation. A charge storage  
capacitor having a capacity of between 68 µF and 220 µF  
(±20%) rated at 6V should be provided.In system power mode  
both VCC and VCAP are connected to the +5V power supply  
without the 68-µF capacitor. In this mode the AutoStore  
function of the CY22E016L will operate on the stored system  
charge as power goes down. The user must, however,  
guarantee that VCC does not drop below 3.6V during the  
10-ms STORE cycles.  
Figure 3. AutoStore Inhibit Mode  
In order to prevent unneeded STORE operations, automatic  
STOREs as well as those initiated by externally driving HSB  
low will be ignored unless at least one WRITE operation has  
taken place since the most recent STORE or RECALL cycle.  
An optional pull-up resistor is shown connected to HSB. This  
can be used to signal the system that the AutoStore cycle is in  
progress.  
Hardware STORE (HSB) Operation  
The CY22E016L provides the HSB pin for controlling and  
acknowledging the STORE operations. The HSB pin can be  
used to request a hardware STORE cycle. When the HSB pin  
is driven low, the CY22E016L will conditionally initiate a  
STORE operation after tDELAY. An actual STORE cycle will  
only begin if a WRITE to the SRAM took place since the last  
STORE or RECALL cycle. The HSB pin also acts as an open  
drain driver that is internally driven low to indicate a busy  
condition while the STORE (initiated by any means) is in  
progress.  
Figure 1. AutoStore® Mode  
If an automatic STOREon power loss is not required, then VCC  
can be tied to ground and +5V applied to VCAP. This is the  
AutoStore Inhibit mode, in which the AutoStore function is  
disabled. If the STK22C48 is operated in this configuration,  
references to VCC should be changed to VCAP throughout this  
data sheet. In this mode, STORE operations may be triggered  
with the HSB pin. It is not permissible to change between these  
three options “on the fly”.  
SRAM READ and WRITE operations that are in progress  
when HSB is driven low by any means are given time to  
Document #: 001-06727 Rev. *A  
Page 3 of 14  
ADVANCE  
INFORMATION  
CY22E016L  
complete before the STORE operation is initiated. After HSB  
goes low, the CY22E016L will continue SRAM operations for  
a negative transition on CE or WE is detected. This protects  
against inadvertent writes during power-up or brown-out  
conditions.  
t
DELAY. During tDELAY, multiple SRAM READ operations may  
take place. If a WRITE is in progress when HSB is pulled low  
it will be allowed a time, tDELAY, to complete. However, any  
SRAM WRITE cycles requested after HSB goes low will be  
inhibited until HSB returns high.  
Noise Considerations  
The CY22E016L is a high-speed memory and so must have a  
high-frequency bypass capacitor of approximately 0.1 µF  
connected between VCC and VSS, using leads and traces that  
are as short as possible. As with all high-speed CMOS ICs,  
careful routing of power, ground, and signals will reduce circuit  
noise.  
The HSB pin can be used to synchronize multiple  
CY22E016Ls while using a single larger capacitor. To operate  
in this mode the HSB pin should be connected together to the  
HSB pins from the other CY22E016Ls. An external pull-up  
resistor to +5V is required since HSB acts as an open-drain  
pull-down. The VCAP pins from the other CY22E016L parts can  
be tied together and share a single capacitor. The capacitor  
size must be scaled by the number of devices connected to it.  
When any one of the CY22E016Ls detects a power loss and  
asserts HSB, the common HSB pin will cause all parts to  
request a STORE cycle (a STORE will take place in those  
CY22E016Ls that have been written since the last nonvolatile  
cycle).  
Low Average Active Power  
CMOS technology provides the CY22E016L the benefit of  
drawing significantly less current when it is cycled at times  
longer than 50 ns. Figure 4 shows the relationship between  
ICC and READ/WRITE cycle time. Only standby current is  
drawn when the chip is disabled. The overall average current  
drawn by the CY22E016L depends on the following items:  
During any STORE operation, regardless of how it was  
initiated, the CY22E016L will continue to drive the HSB pin  
low, releasing it only when the STORE is complete. Upon  
completion of the STORE operation the CY22E016L will  
remain disabled until the HSB pin returns high.  
1. The duty cycle of chip enable.  
2. The overall cycle rate for accesses.  
3. The ratio of READs to WRITEs.  
4. CMOS vs. TTL Input Levels.  
5. The operating temperature.  
6. The VCC level.  
If HSB is not used, it should be left unconnected.  
Hardware RECALL (Power-up)  
7. I/O loading.  
During power-up, or after any low-power condition (VCC  
<
V
SWITCH), an internal RECALL request will be latched. When  
Preventing STOREs  
VCC once again exceeds the sense voltage of VSWITCH, a  
RECALL cycle will automatically be initiated and will take  
The STOREfunction can be disabled on the fly by holding HSB  
high with a driver capable of sourcing 30 mA at a VOH of at  
least 2.2V, as it will have to overpower the internal pull-down  
device that drives HSB low for 20 ns at the onset of a STORE.  
When the CY22E016L is connected for AutoStore operation  
t
HRECALL to complete.  
Data Protection  
The CY22E016L protects data from corruption during  
low-voltage conditions by inhibiting all externally initiated  
STORE and WRITE operations. The low voltage condition is  
detected when VCC < VSWITCH. If the CY22E016L is in a  
WRITE mode (both CE and WE low) at power-up, after a  
RECALL, or after a STORE, the WRITE will be inhibited until  
(system VCC connected to VCC and a 68 µF capacitor on VCAP  
)
and VCC crosses VSWITCH on the way down, the CY22E016L  
will attempt to pull HSB low; if HSB doesn’t actually get below  
VIL, the part will stop trying to pull HSB low and abort the  
STORE attempt.  
Table 1. Hardware Mode Selection  
CE  
H
L
WE  
X
HSB  
H
A10–A0  
Mode  
I/O  
Power  
Standby  
Active  
Active  
ICC2  
X
X
X
X
Not Selected  
Read SRAM  
Write SRAM  
Output High-Z  
Output Data  
Input Data  
H
H
L
L
H
X
X
L
Non-Volatile  
STORE  
Output High-Z  
Document #: 001-06727 Rev. *A  
Page 4 of 14  
ADVANCE  
INFORMATION  
CY22E016L  
Figure 5. Current vs. Cycle Time (WRITE)  
Figure 4. Current vs. Cycle Time (READ)  
Document #: 001-06727 Rev. *A  
Page 5 of 14  
ADVANCE  
INFORMATION  
CY22E016L  
Package Power Dissipation  
Capability (TA = 25°C) ................................................... 1.0W  
Maximum Ratings  
(Above which the useful life may be impaired. For user guide-  
lines, not tested.)  
Surface Mount Lead Soldering  
Temperature (3 Seconds).......................................... +240°C  
Output Short Circuit Current[1]..................................... 15 mA  
Storage Temperature .................................65°C to +150°C  
Ambient Temperature with  
Power Applied.............................................55°C to +125°C  
Static Discharge Voltage.......................................... > 2001V  
(per MIL-STD-883, Method 3015)  
Supply Voltage on VCC Relative to GND.......... –0.5V to 7.0V  
Latch-up Current.................................................... > 200 mA  
Voltage Applied to Outputs  
in High-Z State .......................................–0.5V to VCC + 0.5V  
Operating Range  
Input Voltage............................................ –0.5V to Vcc+0.5V  
Range  
Commercial  
Industrial  
Ambient Temperature  
0°C to +70°C  
VCC  
Transient Voltage (<20 ns) on  
Any Pin to Ground Potential...................–0.5V to VCC + 2.0V  
2.7V to 3.6V  
2.7V to 3.6V  
–40°C to +85°C  
Shaded area contains Advance Information  
DC Electrical Characteristics Over the Operating Range (VCC = 4.5V to 5.5V)[2]  
Parameter  
Description  
Test Conditions  
Min.  
Max. Unit  
ICC1  
Average VCC Current tRC = 25 ns  
Commercial  
Industrial  
85  
75  
65  
mA  
mA  
mA  
tRC = 35 ns  
tRC = 45 ns  
Dependent on output loading and cycle rate.  
Values obtained without output loads. IOUT = 0mA.  
90  
75  
65  
mA  
mA  
mA  
ICC2  
ICC3  
Average VCC Current All Inputs Don’t Care, VCC = Max.  
during STORE Average current for duration tSTORE  
3
mA  
mA  
Average VCC Current at WE > (VCC – 0.2). All other inputs cycling.  
tAVAV =200ns, 5V, 25°C Dependent on output loading and cycle rate. Values obtained  
typical without output loads.  
10  
ICC4  
ISB  
Average VCAP Current All Inputs Don’t Care, VCC = Max.  
during AutoStore Cycle Average current for duration tSTORE  
2
mA  
mA  
VCC Standby Current  
CE > (VCC – 0.2). All others VIN < 0.2V or > (VCC – 0.2V).  
Standby current level after nonvolatile cycle is complete.  
Inputs are static. f = 0MHz.  
2.5  
IILK  
Input Leakage Current VCC = Max., VSS < VIN < VCC  
-1  
-5  
+1  
+5  
µA  
µA  
IOLK  
Off-State Output  
Leakage Current  
VCC = Max., VSS < VIN < VCC  
CE or OE > VIH  
,
VIH  
Input HIGH Voltage  
Input LOW Voltage  
2.2  
VCC – 0.5  
2.4  
VCC + 0.5  
0.8  
V
V
VIL  
VOH  
VOL  
VBL  
VCAP  
Output HIGH Voltage IOUT = –4 mA except HSB  
V
Output LOW Voltage  
Logic “0” on HSB  
Storage Capacitor  
IOUT = 8 mA except HSB  
IOUT = 3 mA  
0.4  
0.4  
120  
V
V
Between VCAP pin and Vss, 5V Rated  
17  
µF  
Capacitance[3]  
Parameter  
Description  
Test Conditions  
TA = 25°C, f = 1 MHz,  
CC = 0 to 3.0V  
Max.  
Unit  
pF  
CIN  
Input Capacitance  
Output Capacitance  
8
7
V
COUT  
pF  
Notes:  
1. Outputs shorted for no more than one second. No more than one output shorted at a time.  
2. Typical conditions for the Active Current shown on the front page of the data sheet are average values at 25°C (room temperature), and V = 5V. Not 100% tested.  
CC  
3. These parameters are guaranteed but not tested.  
Document #: 001-06727 Rev. *A  
Page 6 of 14  
ADVANCE  
INFORMATION  
CY22E016L  
Table 2. Thermal Resistance[3]  
Parameter  
Description  
Test Conditions  
28-SOIC  
Unit  
ΘJA  
Thermal Resistance  
Test conditions follow standard test methods and proce-  
TBD  
°C/W  
(Junction to Ambient) dures for measuring thermal impedance, per EIA / JESD51.  
ΘJC  
Thermal Resistance  
(Junction to Case)  
TBD  
°C/W  
AC Test Loads  
R1 480  
5.0V  
OUTPUT  
R2  
255Ω  
30 pF  
AC Test Conditions  
Input Pulse Levels ..........................................0V to 3V  
Input Rise and Fall Times (10% - 90%) ............... <5ns  
Input and Output Timing Reference Levels .......... 1.5V  
Document #: 001-06727 Rev. *A  
Page 7 of 14  
ADVANCE  
INFORMATION  
CY22E016L  
AC Switching Characteristics  
Parameters  
CY22E016L-25 CY22E016L-35 CY22E016L-45  
Cypress  
Alt.  
Parameter Parameter  
Description  
Min.  
Max.  
Min.  
Max.  
Min.  
Max.  
Unit  
SRAM Read Cycle  
tACE  
tACS  
tRC  
tAA  
Chip Enable Access Time  
25  
35  
45  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
[4]  
tRC  
Read Cycle Time  
25  
35  
45  
[5]  
tAA  
Address Access Time  
25  
10  
35  
15  
45  
20  
tDOE  
tOE  
tOH  
tLZ  
Output Enable to Data Valid  
Output Hold After Address Change  
Chip Enable to Output Active  
Chip Disable to Output Inactive  
Output Enable to Output Active  
Output Disable to Output Inactive  
Chip Enable to Power Active  
Chip Disable to Power Standby  
[5]  
tOHA  
5
5
5
5
5
5
[6]  
[6]  
tLZCE  
tHZCE  
tHZ  
10  
10  
25  
13  
13  
35  
15  
15  
45  
[6]  
tLZOE  
tOLZ  
tOHZ  
tPA  
0
0
0
0
0
0
[6]  
tHZOE  
[3]  
tPU  
[3]  
tPD  
tPS  
SRAM Write Cycle  
tWC  
tPWE  
tSCE  
tSD  
tWC  
tWP  
tCW  
tDW  
tDH  
tAW  
tAS  
Write Cycle Time  
25  
20  
20  
10  
0
35  
25  
25  
12  
0
45  
30  
30  
15  
0
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
Write Pulse Width  
Chip Enable To End of Write  
Data Set-Up to End of Write  
Data Hold After End of Write  
Address Set-Up to End of Write  
Address Set-Up to Start of Write  
Address Hold After End of Write  
Write Enable to Output Disable  
Output Active after End of Write  
tHD  
tAW  
20  
0
25  
0
30  
0
tSA  
tHA  
tWR  
tWZ  
tOW  
0
0
0
[6,7]  
tHZWE  
10  
13  
14  
[6]  
tLZWE  
5
5
5
AutoStore/Power-Up RECALL  
CY22E016L  
550  
Parameters  
Description  
Power-Up RECALL Duration  
STORE Cycle Duration  
Unit  
[8]  
tHRECALL  
µs  
ms  
µs  
V
[9]  
tSTORE  
10  
tDELAY  
Time allowed to complete SRAM Cycle  
Low Voltage Trigger Level  
1
VSWITCH  
4.0  
4.5  
3.6  
VRESET  
Low Voltage Reset Level  
V
Notes:  
4. WE must be HIGH during SRAM Read Cycles.  
5. Device is continuously selected with CE and OE both Low.  
6. Measured ±200 mV from steady state output voltage.  
7. If WE is Low when CE goes Low, the outputs remain in the high-impedance state.  
8. t  
starts from the time V rises above V  
HRECALL  
CC SWITCH.  
9. If an SRAM Write has not taken place since the last non-volatile cycle, no STORE will take place.  
Document #: 001-06727 Rev. *A  
Page 8 of 14  
ADVANCE  
INFORMATION  
CY22E016L  
Hardware STORE Cycle  
CY22E016L  
Parameters  
Description  
Min  
Max  
Unit  
ms  
µs  
[6]  
tSTORE  
STORE Cycle Duration  
10  
[12]  
tDELAY  
tRESTORE  
tHLHX  
Time allowed to complete SRAM Cycle  
Hardware STORE High to Inhibit Off  
Hardware STORE Pulse Width  
1
[13]  
700  
300  
ns  
15  
ns  
tHLBL  
Hardware STORE Low to STORE Busy  
ns  
Switching Waveforms  
tRC  
tAA  
tOH  
Figure 6. SRAM Read Cycle #1: Address Controlled[4, 5, 14]  
t
t
ACE  
PU  
CE  
OE  
t
LZCE  
t
HZCE  
t
t
HZOE  
DOE  
t
LZOE  
t
PU  
Figure 7. SRAM Read Cycle #2: CE and OE Controlled[4,14]  
Notes:  
10. The software sequence is clocked with CE controlled or OE controlled READs.  
11. The six consecutive addresses must be read in the order listed in the Mode Selection table. WE must be HIGH during all six consecutive cycles.  
12. Read and Write cycles in progress before HSB are given this amount of time to complete.  
13. t  
is only applicable after t  
is complete.  
RESTORE  
STORE  
14. HSB must remain HIGH during READ and WRITE cycles.  
Document #: 001-06727 Rev. *A  
Page 9 of 14  
ADVANCE  
INFORMATION  
CY22E016L  
Switching Waveforms (continued)  
tHA  
tSCE  
CE  
tSA  
tPWE  
WE  
tSD  
tHD  
tHZWE  
tLZWE  
Figure 8. SRAM Write Cycle #1: WE Controlled[14,15]  
tSA  
tHA  
tSCE  
CE  
tPWE  
WE  
tSD  
tHD  
Figure 9. SRAM Write Cycle #2: CE Controlled  
Note:  
15. CE or WE must be > V during address transitions.  
IH  
Document #: 001-06727 Rev. *A  
Page 10 of 14  
ADVANCE  
INFORMATION  
CY22E016L  
Switching Waveforms (continued)  
Figure 10. AutoStore/Power-Up RECALL  
tRESTORE  
Figure 11. Hardware STORE Cycle  
Document #: 001-06727 Rev. *A  
Page 11 of 14  
ADVANCE  
INFORMATION  
CY22E016L  
PART NUMBERING NOMENCLATURE  
CY 22 E 016 L- SZ 25 C T  
Option:  
T - Tape & Reel  
Blank - Std.  
Temperature:  
C - Commercial (0 to 70°C)  
I - Industrial (–40 to 85°C)  
A - Automotive (–40 to 125°C)  
Speed:  
25 - 25 ns  
35 - 35 ns  
45 - 45 ns  
55 - 55 ns  
Package:  
SZ - 28 SOIC  
PZ - 28 PDIP  
Data Bus:  
K - x8 + RTC  
L - x8  
Density:  
016 - 16 Kb  
064 - 64 Kb  
256 - 256 Kb  
101 - 1 Mb  
102 - 2 Mb  
104 - 4 Mb  
Voltage:  
A - 1.8V  
B - 3.0V  
C - 3.3V  
D - 3.0/3.3V  
E - 5.0V  
NVSRAM  
14 - AutoStore + software store + hardware store  
11 - Software store  
15 - AutoStore + software store  
16 - AutoStorePlus+ hardware store  
10 - Hardware store  
22 - AutoStore + Hardware Store  
25 - AutoStore  
Cypress  
Ordering Information  
Speed  
(ns)  
Package  
Name  
Operating  
Range  
Ordering Code  
Package Type  
25  
CY22E016L-SZ25IT  
CY22E016L-SZ25I  
CY22E016L-SZ25CT  
CY22E016L-SZ35IT  
CY22E016L-SZ35I  
CY22E016L-SZ35CT  
51-85026 28-Lead SOIC Pb-Free  
51-85026 28-Lead SOIC Pb-Free  
51-85026 28-Lead SOIC Pb-Free  
51-85026 28-Lead SOIC Pb-Free  
51-85026 28-Lead SOIC Pb-Free  
51-85026 28-Lead SOIC Pb-Free  
Industrial  
Commercial  
Industrial  
35  
Commercial  
Shaded areas contain advance information. Please contact your local Cypress sales representative for availability of these parts.  
Document #: 001-06727 Rev. *A  
Page 12 of 14  
ADVANCE  
INFORMATION  
CY22E016L  
Package Diagrams  
28-Lead (300-Mil) Molded SOIC (51-85026)  
NOTE :  
PIN 1 ID  
1. JEDEC STD REF MO-119  
2. BODY LENGTH DIMENSION DOES NOT INCLUDE MOLD PROTRUSION/END FLASH,BUT  
DOES INCLUDE MOLD MISMATCH AND ARE MEASURED AT THE MOLD PARTING LINE.  
MOLD PROTRUSION/END FLASH SHALL NOT EXCEED 0.010 in (0.254 mm) PER SIDE  
14  
1
MIN.  
3. DIMENSIONS IN INCHES  
MAX.  
0.291[7.39]  
0.300[7.62]  
4. PACKAGE WEIGHT 0.85gms  
*
0.394[10.01]  
0.419[10.64]  
PART #  
15  
28  
0.026[0.66]  
0.032[0.81]  
S28.3 STANDARD PKG.  
SZ28.3 LEAD FREE PKG.  
SEATING PLANE  
0.697[17.70]  
0.713[18.11]  
0.092[2.33]  
0.105[2.67]  
*
0.004[0.10]  
0.0091[0.23]  
0.0125[3.17]  
0.015[0.38]  
0.050[1.27]  
0.013[0.33]  
0.019[0.48]  
*
0.004[0.10]  
0.050[1.27]  
TYP.  
0.0118[0.30]  
51-85026-*D  
28-Lead (350-Mil) SOIC (TBD)  
AutoStore and QuantumTrap are registered trademarks of Simtek Corporation.All products and company names mentioned in  
this document are the trademarks of their respective holders.  
Document #: 001-06727 Rev. *A  
Page 13 of 14  
© Cypress Semiconductor Corporation, 2006. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use  
of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be  
used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its  
products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress  
products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.  
ADVANCE  
INFORMATION  
CY22E016L  
Document History Page  
Document Title: CY22E016L 16-Kbit (2K x 8) nvSRAM  
Document Number: 001-06727  
Issue  
Date  
Orig. of  
Change  
REV.  
**  
ECN NO.  
427789  
437321  
Description of Change  
See ECN  
See ECN  
TUP  
TUP  
New Data Sheet  
Show Data Sheet on external Web  
*A  
Document #: 001-06727 Rev. *A  
Page 14 of 14  

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