參數(shù)資料
型號： 74AHCT595
廠商： NXP Semiconductors N.V.
英文描述： 8-bit serial-in/serial or parallel-out shift register with output latches;3-state(帶輸出鎖存的8位串行輸入/串行或并行輸出移位寄存器；三態(tài))
中文描述： 8位serial-in/serial或并行輸出的移位寄存器輸出鎖存器，3態(tài)（帶輸出鎖存的8位串行輸入/串行或并行輸出移位寄存器，三態(tài)）
文件頁數(shù)： 3/20頁
文件大?。?/td> 103K
代理商： 74AHCT595
2000 Mar 15
3
Philips Semiconductors
Product specification
8-bit serial-in/serial or parallel-out shift
register with output latches; 3-state
74AHC595; 74AHCT595
FUNCTION TABLE
See note 1.
Note
1.
H = HIGH voltage level;
L = LOW voltage level;
↑
= LOW-to-HIGH transition;
↓
= HIGH-to-LOW transition;
X = don’t care;
NC = no change;
Z = high impedance OFF-state.
ORDERING INFORMATION
INPUT
OUTPUT
FUNCTION
SH
CP
X
X
X
ST
CP
X
↑
X
OE
MR
D
S
X
X
X
Q
7
’
L
L
L
Q
n
NC
L
Z
L
L
H
L
L
L
a LOW level on MR only affects the shift registers
empty shift register loaded into storage register
shift register clear. Parallel outputs in high impedance
OFF-state.
logic HIGH level shifted into shift register stage 0.
Contents of all shift register stages shifted through, e.g.
previous state of stage 6 (internal Q
6
’) appears on the
serial output (Q
7
’).
contents of shift register stages (internal Q
n
’) are
transferred to the storage register and parallel output
stages
contents of shift register shifted through. Previous
contents of the shift register is transferred to the storage
register and the parallel output stages.
↑
X
L
H
H
Q
6
’
NC
X
↑
L
H
X
NC
Q
n
’
↑
↑
L
H
X
Q
6
’
Q
n
’
TYPE NUMBER
PACKAGES
TEMPERATURE
RANGE
40 to +125
°
C
PINS
PACKAGE
MATERIAL
CODE
74AHC595D
74AHC595PW
74AHCT595D
74AHCT595PW
16
16
16
16
SO
plastic
plastic
plastic
plastic
SOT109-1
SOT403-1
SOT109-1
SOT403-1
TSSOP
SO
TSSOP
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