參數(shù)資料
型號: 74HCT166
廠商: NXP Semiconductors N.V.
英文描述: 8-bit parallel-in/serial-out shift register(8位并入/串出移位寄存器)
中文描述: 8位parallel-in/serial-out移位寄存器(8位并入/串出移位寄存器)
文件頁數(shù): 4/10頁
文件大?。?/td> 93K
代理商: 74HCT166
December 1990
4
Philips Semiconductors
Product specification
8-bit parallel-in/serial-out shift register
74HC/HCT166
FUNCTION TABLE
Notes
1.
H = HIGH voltage level
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH CP transition
L = LOW voltage level
I = LOW voltage level one set-up time prior to the LOW-to-HIGH CP transition
q = lower case letters indicate the state of the referenced output one set-up time prior to the
LOW-to-HIGH CP transition
X = don’t care
= LOW-to-HIGH CP transition
OPERATING MODES
INPUTS
Q
n
REGISTER
OUTPUT
PE
CE
CP
D
S
D
0
-D
7
I - I
h - h
X - X
X - X
X - X
Q
0
Q
1
-Q
6
Q
7
L
H
q
6
q
6
q
7
parallel load
I
I
h
h
X
I
I
I
I
h
X
X
X
I
h
X
L
H
L
H
q
0
L - L
H - H
q
0
- q
5
q
0
- q
5
q
1
- q
6
serial shift
hold “do nothing”
Fig.4 Functional diagram.
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