参数资料
型号: MM54C165
厂商: National Semiconductor Corporation
英文描述: Parallel-Load 8-Bit Shift Register
中文描述: 并联负载8位移位寄存器
文件页数: 4/6页
文件大小: 135K
代理商: MM54C165
Truth Table
State
Inputs
Internal
Outputs
PL
Clock1
Clock2
(as enable)
Ds
P0 thru P7
Q0
Q1
Q7
Q7
Parallel Load
L
X
X
X
P0 . . . P7
P0
P1
P7
P7
Enable
H
L
u
u
u
L
X
X
P0
P1
P7
P7
Shift (with Ds)
H
L
H
X
H
P0
P6
P6
Shift (with Ds)
H
L
L
X
L
H
P5
P5
Hold (Disable)
H
H
X
X
L
H
P5
P5
X
e
don’t care
H
e
V
IN(1)
L
e
V
IN(0)
u
e
clock transition from V
IN(0)
to V
IN(1)
P0 thru P7
e
data present (and loaded into) parallel inputs
Q0 thru Q6
e
Internal flip-flop outputs
Logic Waveform
TL/F/5897–5
4
相关PDF资料
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MM74C195 4-Bit Registers
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相关代理商/技术参数
参数描述
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