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零件编号
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HD74LS161AFP 查看數據表(PDF) - Renesas Electronics
零件编号
产品描述 (功能)
生产厂家
HD74LS161AFP
Synchronous 4-bit Binary Counter (direct clear)
Renesas Electronics
HD74LS161AFP Datasheet PDF : 11 Pages
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HD74LS161A
Testing Table
Item
From input to
output
ƒ
max
CK Ripply
→
Carry
CK
→
Q
t
PLH
t
PHL
CK
→
Q
Enable
T
→
Ripple
Carry
CLR
→
Q
Notes: *. For initialized
Clear Load
4.5V 4.5V
4.5V 4.5V
4.5V
4.5V
4.5V
GND
4.5V GND
IN GND
Enable
P
T
4.5V 4.5V
4.5V 4.5V
4.5V
GND
4.5V
GND
4.5V
IN
GND GND
Inputs
Clock
IN
A
GND
IN
GND
IN
GND
IN
IN*
IN*
4.5V
IN*
4.5V
Item From input to output
ƒ
max
CK
→
Ripple Carry
CK
→
Q
t
PLH
CK
→
Q
t
PHL
Enable T
→
Ripple Carry
CLR
→
Q
Q
A
OUT
—
OUT
OUT
—
OUT
Q
B
OUT
—
OUT
OUT
—
OUT
Outputs
Q
C
OUT
—
OUT
OUT
—
OUT
Data
B
C
GND GND
GND GND
GND
IN*
GND
IN*
4.5V
4.5V
4.5V
4.5V
D
GND
GND
GND
IN*
4.5V
4.5V
Q
D
OUT
—
OUT
OUT
—
OUT
Ripple Carry
OUT
OUT
—
—
OUT
—
Rev.2.00, Feb.18.2005, page 6 of 10
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