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參數(shù)資料
| 型號： | SN54LS395 |
| 廠商： | Motorola, Inc. |
| 英文描述： | 4-BIT SHIFT REGISTER WITH 3-STATE OUTPUTS |
| 中文描述： | 4位移位寄存器具有三態(tài)輸出 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大小： | 196K |
| 代理商： | SN54LS395 |
5-553
FAST AND LS TTL DATA
SN74LS395
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Symbol
Parameter
Limits
Unit
Test Conditions
Min
Typ
Max
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
0.8
V
Guaranteed Input LOW Voltage for
All Inputs
VIK
Input Clamp Diode Voltage
–0.65
–1.5
V
VCC = MIN, IIN = –18 mA
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
VOH
Output HIGH Voltage
2.7
3.5
V
VOL
Output LOW Voltage
0.25
0.4
V
IOL = 4.0 mA
VCC = VCC MIN,
per Truth Table
0.35
0.5
V
IOL = 8.0 mA
VIN = VIL or VIH
IOZH
IOZL
Output Off Current HIGH
20
μ
A
VCC = MAX, VO = 2.4 V
VCC = MAX, VO = 0.4 V
VCC = MAX, VIN = 2.7 V
VCC = MAX, VIN = 7.0 V
VCC = MAX, VIN = 0.4 V
VCC = MAX
Output Off Current LOW
–20
μ
A
IIH
Input HIGH Current
20
μ
A
–0.1
mA
IIL
IOS
Input LOW Current
–0.4
mA
Short Circuit Current (Note 1)
–20
–100
mA
ICC
Power Supply Current
Total, Output HIGH
31
mA
VCC = MAX, OE = GND, CP = GND
Total, Output LOW
34
mA
VCC = MAX, OE = 4.5 V, CP
momentary 3.0 V then GND
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS
(TA = 25
°
C)
Symbol
Parameter
Limits
Unit
Test Conditions
Min
Typ
Max
fMAX
tPHL
tPLH
tPHL
Maximum Input Clock Frequency
30
45
MHz
CL = 15 pF
Propagation Delay, Clear to Output
22
35
ns
VCC = 5.0 V
Propagation Delay, Low to High
Propagation Delay, High to Low
15
25
30
30
ns
tPZH
tPZL
Output Enable Time
15
17
25
25
ns
tPLZ
tPHZ
Output Disable Time
12
11
20
17
ns
CL = 5.0 pF
AC SETUP REQUIREMENTS
(TA = 25
°
C)
Symbol
Parameter
Limits
Unit
Test Conditions
Min
Typ
Max
tW
Clock Pulse Width
16
ns
VCC = 5.0 V
ts
ts
th
Setup Time, Mode Select
40
ns
Setup Time, All Others
20
ns
Data Hold Time
10
ns
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