NC7SZ384P5 [ETC]
Bus Switch ; 总线开关\n
| 型号： | NC7SZ384P5 |
| 厂家： | 
ETC |
| 描述： | Bus Switch
|
| 文件： | 总7页 (文件大小：84K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
November 1996
Revised November 2000
NC7SZ384
TinyLogic UHS 1-Bit Low Power Bus Switch
General Description
Features
The NC7SZ384 provides 1-bit of ultra high-speed CMOS
TTL-compatible bus switch. The low on resistance of the
switch allows inputs to be connected to outputs with mini-
mal propagation delay and without generating additional
ground bounce noise. The device is organized as a 1-bit
switch with a bus enable (OE) signal. When OE is LOW,
the switch is on and Port A is connected to Port B. When
OE is HIGH, the switch is open and a high-impedance
state exists between the two ports.
■ Space saving SOT23 or SC70 5-lead package
■ 5Ω switch connection between two ports
■ Minimal propagation delay through the switch
■ Low ICC
■ Zero bounce in flow-through mode
■ Control inputs compatible with TTL level
Ordering Code:
Order
Package
Number
MA05B
Product Code
Top Mark
8Z84
Package Description
Supplied As
Number
NC7SZ384M5
NC7SZ384M5X
NC7SZ384P5
NC7SZ384P5X
5-Lead SOT23, JEDEC MO-178, 1.6mm
5-Lead SOT23, JEDEC MO-178, 1.6mm
250 Units on Tape and Reel
3k Units on Tape and Reel
MA05B
8Z84
MAA05A
MAA05A
Z84
5-Lead SC70, EIAJ SC-88a, 1.25mm Wide 250 Units on Tape and Reel
5-Lead SC70, EIAJ SC-88a, 1.25mm Wide 3k Units on Tape and Reel
Z84
Logic Diagram
Connection Diagram
(Top View)
Pin Description
Truth Table
Pin Name
Description
BO
OE
L
Function
Connect
OE
A
Bus Switch Enable
Bus A
AO
H
HIGH-Z State
Disconnect
B
Bus B
TinyLogic is a trademark of Fairchild Semiconductor Corporation.
© 2000 Fairchild Semiconductor Corporation
DS012178
www.fairchildsemi.com
Absolute Maximum Ratings(Note 1)
Recommended Operating
Conditions (Note 3)
Supply Voltage (VCC
)
−0.5V to +7.0V
−0.5V to +7.0V
−0.5V to +7.0V
DC Switch Voltage (VS)
DC Input Voltage (VIN) (Note 2)
DC Input Diode Current
(IIK) VIN < 0V
Power Supply Operating (VCC
Input Voltage (VIN
Output Voltage (VOUT
)
4.0V to 5.5V
0V to 5.5V
0V to 5.5V
)
)
−50 mA
Input Rise and Fall Time (tr, tf)
Switch Control Input
Switch I/O
DC Output (IOUT) Sink Current
DC VCC/GND Current
128 mA
0 ns/V to 5 ns
0 ns/V to DC
(ICC/IGND
Storage Temperature Range
(TSTG
)
±100 mA
−65°C to +150°C
+150°C
Operating Temperature (TA)
−40°C to +85°C
Thermal Resistance (θJA
SOT23-5
)
)
300°C/W
425°C/W
Junction Temperature
under Bias (TJ)
SC70-5
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Junction Lead Temperature (TL)
(Soldering, 10 Seconds)
Power Dissipation (PD) @ +85°C
SOT23-5
+260°C
Note 2: The input and output negative voltage ratings may be exceeded if
the input and output diode current ratings are observed.
200 mW
150 mW
SC70-5
Note 3: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
VCC
TA = −40°C to +85°C
Symbol
Parameter
Units
Conditions
IIN = −18 mA
(V)
4.5
Min
Typ
Max
VIK
Clamp Diode Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
Input Leakage Current
“OFF” Leakage Current
Switch On Resistance
(Note 4)
−1.2
−V
V
VIH
VIL
4.5–5.5
4.5–5.5
5.5
2.0
0.8
±1.0
±10.0
7
V
IIN
µA
µA
Ω
0 ≤ VIN ≤ 5.5V
0 ≤ A, B ≤ VCC
IOFF
RON
5.5
4.5
3
3
VIN = 0V, IIN = 64 mA
VIN = 0V, IIN = 30 mA
VIN = 2.4V, IIN = 15 mA
VIN = 2.4V, IIN = 15 mA
VIN = VCC or GND
4.5
7
Ω
4.5
6
15
Ω
4.0
10
20
Ω
ICC
Quiescent Supply Current
5.5
10
µA
I
O= 0
∆ ICC
Increase in ICC per Input (Note 5)
5.5
0.9
2.5
mA
VIN = 3.4V, IO = 0, Control Input only
Note 4: Measured by the voltage drop between A and B pins at the indicated current through the switch. On resistance is determined by the lower of the
voltages on the two (A or B) pins.
Note 5: Per TTL driven input (VIN = 3.4V, control input only). A and B pins do not contribute to ICC
.
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2
AC Electrical Characteristics
TA = −40°C to +85°C,
VCC
CL = 50 pF, RU = RD = 500Ω
Symbol
Parameter
Units
Conditions
Fig. No.
Typ
(Note 6)
(V)
Min
Max
tPHL
tPLH
tPZL
tPZH
tPLZ
tPHZ
,
Prop Delay Bus to Bus
(Note 7)
4.0–5.5
0.25
ns
VI = OPEN
Figures
1, 2
,
Output Enable Time
4.5–5.5
4.0
1.0
2.5
2.5
5.0
5.5
5.0
5.5
ns
ns
ns
ns
VI = 7V for tPZL
Figures
1, 2
1.0
1.0
1.0
VI = OPEN for tPZH
VI = 7V for tPLZ
,
Output Disable Time
4.5–5.5
4.0
Figures
1, 2
VI = OPEN for tPHZ
Capacitance (Note 8)
Symbol
Parameter
Control Pin Input Capacitance
Input/Output Capacitance
Typ
Max
Units
Conditions
CIN
2
6
pF
V
CC = 5.0V
CI/O
4.5
10
pF
VCC, BE = 5.0V
Note 6: All typical values are VCC = 5.0V, TA = 25°C.
Note 7: This parameter is guaranteed by design but is not tested. The bus switch contributes no propagation delay other than the RC delay of the typical On
resistance of the switch and the 50 pF load capacitance, when driven by an ideal voltage source (zero output impedance).
Note 8: TA = 25°C, f = 1 MHz.
AC Loading and Waveforms
Input driven by 50Ω source terminated in 50Ω
CL includes load and stray capacitance
Input PRR = 1.0 MHz; tW = 500 ns
FIGURE 1. AC Test Circuit
FIGURE 2. AC Waveforms
3
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Tape and Reel Specification
TAPE FORMAT
Package
Tape
Number
Cavities
125 (typ)
250
Cavity
Status
Empty
Filled
Cover Tape
Status
Designator
Section
Leader (Start End)
Sealed
Sealed
Sealed
Sealed
Sealed
Sealed
M5, P5
Carrier
Trailer (Hub End)
Leader (Start End)
Carrier
75 (typ)
125 (typ)
3000
Empty
Empty
Filled
M5X, P5X
Trailer (Hub End)
75 (typ)
Empty
TAPE DIMENSIONS inches (millimeters)
Tape Size
DIM A
DIM B
DIM F
DIM Ko
DIM P1
DIM W
Package
0.093
(2.35)
0.130
(3.3)
0.096
(2.45)
0.130
(3.3)
0.138 ± 0.004 0.053 ± 0.004
(3.5 ± 0.10) (1.35 ± 0.10)
0.138 ± 0.002 0.055 ± 0.004
(3.5 ± 0.05) (1.4 ± 0.11)
0.157
(4)
0.315 ± 0.004
(8 ± 0.1)
SC70-5
8 mm
0.157
(4)
0.315 ± 0.012
(8 ± 0.3)
SOT23-5
8 mm
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4
Tape and Reel Specification (Continued)
REEL DIMENSIONS inches (millimeters)
Tape
Size
A
B
C
D
N
W1
W2
W3
7.0
0.059
0.512
0.795
2.165 0.331 + 0.059/−0.000
0.567
W1 + 0.078/−0.039
(W1 + 2.00/−1.00)
8 mm
(177.8) (1.50) (13.00) (20.20) (55.00) (8.40 + 1.50/−0.00)
(14.40)
5
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Physical Dimensions inches (millimeters) unless otherwise noted
5-Lead SOT23, JEDEC MO-178, 1.6mm
Package Number MA05B
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6
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
5-Lead SC70, EIAJ SC-88a, 1.25mm Wide
Package Number MAA05A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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7
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