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參數(shù)資料
| 型號： | MC74F164 |
| 廠商： | Motorola, Inc. |
| 英文描述： | Supply Voltage Supervisor w/Watchdog input and manual reset 5-SOT-23 -40 to 85 |
| 中文描述： | 8位串行，并行輸出的移位寄存器快速肖特基TTL電 |
| 文件頁數(shù)： | 2/3頁 |
| 文件大?。?/td> | 64K |
| 代理商： | MC74F164 |
4-80
FAST AND LS TTL DATA
MC54/74F164
MR
D
Q
CD
D
Q
CD
D
Q
CD
D
Q
CD
D
Q
CD
D
Q
CD
D
Q
CD
A
B
CP
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
D
Q
CD
LOGIC DIAGRAM
FUNCTIONAL DESCRIPTION
The F164 is an edge-triggered 8-bit shift register with se-
rial data entry and an output from each of the eight stages.
Data is entered serially through one of two inputs (A or B); ei-
ther of these inputs can be used as an active HIGH Enable
for data entry through the other input. An unused input must
be tied HIGH.
Each LOW-to-HIGH transition on the Clock (CP) input
shifts data one place to the right and enters into Q0 the logical
AND of the two data inputs (A
B) that existed before the rising
clock edge. A LOW level on the Master Reset (MR) input over-
rides all other inputs and clears the register asynchronously,
forcing all Q outputs LOW.
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54, 74
4.5
5.0
5.5
V
TA
Operating Ambient Temperature Range
54
–55
25
125
°
C
74
0
25
70
IOH
Output Current
High
54, 74
–1.0
mA
IOL
Output Current
Low
54, 74
20
mA
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(unless otherwise specified)
Limits
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage
VIL
Input LOW Voltage
0.8
V
Guaranteed Input LOW Voltage
VIK
Input Clamp Diode Voltage
–1.2
V
VCC = MIN, IIN = –18 mA
VOH
Output HIGH Voltage
54, 74
2.5
V
IOH = –1.0 mA
VCC = MIN
74
2.7
V
IOH = –1.0 mA
VCC = 4.75 V
VOL
Output LOW Voltage
0.5
V
IOL = 20 mA
VCC = MIN
IIH
Input HIGH Current
20
μ
A
VCC = MAX, VIN = 2.7 V
0.1
mA
VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
–0.6
mA
VCC = MAX, VIN = 0.5 V
IOS
Output Short Circuit Current (Note 2)
–60
–150
mA
VCC = MAX, VOUT = 0 V
ICC
Power Supply Current
35
55
mA
A, B = GND, VCC = MAX
CP = HIGH, MR = GND
NOTES:
1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type.
2. Not more than one output should be shorted at a time, nor for more than 1 second.
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