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參數(shù)資料
| 型號(hào)： | MC74F163AD |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | SYNCHRONOUS PRESETTABLE BINARY COUNTER |
| 中文描述： | F/FAST SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁(yè)數(shù)： | 3/4頁(yè) |
| 文件大?。?/td> | 99K |
| 代理商： | MC74F163AD |
4-77
FAST AND LS TTL DATA
MC74F161A
MC74F163A
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
74
4.5
5.0
5.5
V
TA
Operating Ambient Temperature Range
74
0
25
70
°
C
IOH
Output Current — High
74
– 1.0
mA
IOL
Output Current — Low
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 for
All Inputs
VIL
Input LOW Voltage
0.8
V
Guaranteed Input LOW Voltage for
All Inputs
VIK
Input Clamp Diode Voltage
–1.2
V
VCC = MIN, IIN = – 18 mA
VOH
Output HIGH Voltage
74
2.5
3.4
V
IOH = –1.0 mA
VCC = 4.50 V
74
2.7
3.4
V
IOH = –1.0 mA
VCC = 4.75 V
VOL
Output LOW Voltage
0.35
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
Data, CEP, Clock
PE, CET, SR
–0.6
–1.2
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
37
55
mA
VCC = MAX
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.
The Terminal Count (TC) output is HIGH when CET is HIGH
and the counter is in state 15. To implement synchronous mul-
tistage counters, the TC outputs can be used with the CEP
and CET inputs in two different ways. The TC output is subject
to decoding spikes due to internal race conditions and is there-
fore not recommended for use as a clock or asynchronous
reset for flip-flops, counters, or registers.
Logic Equations:
Count Enable = CEP
CET
PE
TC = Q0
Q1
Q2
Q3
CET
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