MC74F160A 查看數據表（PDF） - Motorola => Freescale
零件编号
产品描述 (功能)
生产厂家
MC74F160A Datasheet PDF : 4 Pages
| |||
MC74F160A • MC74F162A
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
TA
IOH
IOL
Supply Voltage
Operating Ambient Temperature Range
Output Current — High
Output Current — Low
Min
Typ
Max
Unit
74
4.5
5.0
5.5
V
74
0
25
70
°C
74
–1.0
mA
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
VOH
VOL
IIH
Input Clamp Diode Voltage
Output HIGH Voltage
74
74
Output LOW Voltage
Input HIGH Current
Input LOW Current
IIL
MR, Data, CEP, Clock
PE, CET, SR
–1.2
V
VCC = MIN, IIN = – 18 mA
2.5
3.4
V
IOH = –1.0 mA VCC = 4.50 V
2.7
3.4
V
IOH = –1.0 mA VCC = 4.75 V
0.35
0.5
V
IOL = 20 mA
VCC = MIN
20
µA
VCC = MAX, VIN = 2.7 V
0.1
mA
VCC = MAX, VIN = 7.0 V
–0.6
mA
VCC = MAX, VIN = 0.5 V
–1.2
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 9. To implement synchronous multi-
stage counters, the TC outputs can be used with the CEP and
CET inputs in two different ways. Please refer to the
MC74F568 data sheet. The TC output is subject to decoding
spikes due to internal race conditions and is therefore not rec-
ommended for use as a clock or asynchronous reset for
flip-flops, counters, or registers. In the MC74F160A and
MC74F162A decade counters, the TC output is fully decoded
and can only be HIGH in state 9. If a decade counter is preset
to an illegal state, or assumes an illegal state when power is
applied, it will return to the normal sequence within two
counts, as shown in the State Diagram.
Logic Equations:
Count Enable = CEP • CET • PE
TC = Q0 • Q1 • Q2 • Q3 • CET
FAST AND LS TTL DATA
4-73
Share Link: 