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Part Name
Description
74LS View Datasheet(PDF) - ON Semiconductor
Part Name
Description
View to exact match
74LS
SYNCHRONOUS 4-BIT UP/DOWN COUNTER
ON Semiconductor
74LS Datasheet PDF : 4 Pages
1
2
3
4
SN54 / 74LS669
CLOCK
INPUT
LOAD
INPUT
DATA INPUTS
A,B,C, and D
ENABLE P or
ENABLE T
UP/DOWN
INPUT
PARAMETER MEASUREMENT INFORMATION
tw(clock)
tw(clock)
1.3 V
1.3 V
1.3 V
1.3 V
ts
ts
th
1.3 V
1.3 V
ts
th
1.3 V
1.3 V
ts
1.3 V
ts
th
1.3 V
1.3 V
3V
1.3 V
0V
3V
0V
3V
0V
th
0V
1.3 V
3V
ts
th
3V
1.3 V
1.3 V
0V
ENABLE T
INPUT
RIPPLE
CARRY
OUTPUT
VOLTAGE WAVEFORMS
1.3 V
tPHL
1.3 V
3V
1.3 V
0V
tPLH
VOL
1.3 V
VOH
FAST AND LS TTL DATA
5-4
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