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参数资料
| 型号： | SN74LS194ADR2 |
| 厂商： | ON SEMICONDUCTOR |
| 元件分类： | 计数移位寄存器 |
| 英文描述： | LS SERIES, 4-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16 |
| 封装： | PLASTIC, SOIC-16 |
| 文件页数： | 4/7页 |
| 文件大小： | 182K |
| 代理商： | SN74LS194ADR2 |
SN74LS194A
http://onsemi.com
4
MODE SELECT — TRUTH TABLE
OPERATING MODE
INPUTS
OUTPUTS
MR
S1
S0
DSR
DSL
Pn
Q0
Q1
Q2
Q3
Reset
L
X
L
Hold
H
I
X
q0
q1
q2
q3
Shift Left
H
h
I
X
I
X
q1
q2
q3
L
H
h
I
X
h
X
q1
q2
q3
H
Shift Right
H
I
h
I
X
L
q0
q1
q2
H
I
h
X
H
q0
q1
q2
Parallel Load
H
h
X
Pn
P0
P1
P2
P3
L = LOW Voltage Level
H = HIGH Voltage Level
X = Don’t Care
I = LOW voltage level one set-up time prior to the LOW to HIGH clock transition
h = HIGH voltage level one set-up time prior to the LOW to HIGH clock transition
pn (qn) = Lower case letters indicate the state of the referenced input (or output) one set-up time prior to the LOW to HIGH clock transition.
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
VOH
Output HIGH Voltage
2.7
3.5
V
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
VOL
Output LOW Voltage
0.25
0.4
V
IOL = 4.0 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
0.35
0.5
V
IOL = 8.0 mA
IIH
Input HIGH Current
20
μA
VCC = MAX, VIN = 2.7 V
0.1
mA
VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
0.4
mA
VCC = MAX, VIN = 0.4 V
IOS
Short Circuit Current (Note 1)
20
100
mA
VCC = MAX
ICC
Power Supply Current
23
mA
VCC = MAX
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
Maximum Clock Frequency
25
36
MHz
VCC = 5.0 V
CL = 15 pF
tPLH
tPHL
Propagation Delay,
Clock to Output
14
17
22
26
ns
tPHL
Propagation Delay,
MR to Output
19
30
ns
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74LS194ADRE4 | 功能描述:计数器移位寄存器 Bi-dir universal Shift Register RoHS:否 制造商:Texas Instruments 计数器类型: 计数顺序:Serial to Serial/Parallel 电路数量:1 封装 / 箱体:SOIC-20 Wide 逻辑系列: 逻辑类型: 输入线路数量:1 输出类型:Open Drain 传播延迟时间:650 ns 最大工作温度:+ 125 C 最小工作温度:- 40 C 封装:Reel |
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