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参数资料
| 型号： | SN54LS569AJ |
| 厂商： | MOTOROLA INC |
| 元件分类： | 计数器 |
| 英文描述： | LS SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, CDIP20 |
| 封装： | 732-03 |
| 文件页数： | 6/6页 |
| 文件大小： | 107K |
| 代理商： | SN54LS569AJ |
5-6
FAST AND LS TTL DATA
SN54/74LS569A
AC SETUP REQUIREMENTS (TA = 25°C, VCC = 5.0 V)
Sb l
P
Limits
Ui
T
C
di i
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
tW
Clock Pulse Width (Low)
20
ns
V5 0 V
ts
Setup Time, A, B, C, D
20
ns
V5 0 V
ts
Setup Time, SCLR
20
ns
V5 0 V
ts
Setup Time, LOAD
25
ns
VCC =5 0V
ts
Setup Time, U/D
30
ns
VCC = 5.0 V
ts
Setup Time, CET, CEP
20
ns
th
Hold Time, Any Inputs
0
ns
trec
ACLR
15
ns
MICROPROGRAMMABLE DUAL-EVENT 8-BIT COUNTERS
CP
LOAD1 U/D1 COUNT1
ACLR1
OE1
LOAD2 U/D2 COUNT2
ACLR2
OE2
8–BIT BUS
U/D
LOAD
CET
CEP
ACLR
OE
RCO
A–D
YA–D
44
4
44
4
8
CP
U/D
LOAD
CET
CEP
ACLR
OE
A–D
YA–D
CP
U/D
LOAD
CET
CEP
ACLR
OE
RCO
A–D
YA–D
CP
U/D
LOAD
CET
CEP
ACLR
OE
A–D
YA–D
LS569A
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