參數(shù)資料
型號(hào)： MC74HC595A
廠商： ON SEMICONDUCTOR
英文描述： 8-Bit Serial-Input/Serial or Parallel-Output Shift Register with Latched 3-State Outputs(8位串行輸入 串/并輸出移位寄存器（3態(tài)輸出）)
中文描述： 8位Serial-Input/Serial或并行輸出移位寄存器和鎖存三態(tài)輸出（8位串行輸入串/并輸出移位寄存器（三態(tài)輸出））
文件頁數(shù)： 6/12頁
文件大小： 121K
代理商： MC74HC595A
MC74HC595A
http://onsemi.com
6
FUNCTION TABLE
Inputs
Resulting Function
Latch
Register
Contents
Operation
Reset
L
Serial
Input
A
Shift
Clock
Latch
Clock
L, H,
↓
L, H,
↓
Output
Enable
Shift
Register
Contents
Serial
Output
SQ
H
L
Parallel
Outputs
Q
A
Q
H
U
Reset shift register
X
X
L
L
U
Shift data into shift
register
H
D
↑
L
D
→
SR
A
;
SR
N
→
SR
N+1
U
U
SR
G
→
SR
H
U
Shift register remains
unchanged
H
X
L, H,
↓
L, H,
↓
L
U
U
U
Transfer shift register
contents to latch
register
H
X
L, H,
↓
↑
L
U
SR
N
→
LR
N
U
SR
N
Latch register remains
unchanged
X
X
X
L, H,
↓
L
*
U
*
U
Enable parallel outputs
X
X
X
X
L
*
**
*
Enabled
Force outputs into high
impedance state
X
X
X
X
H
*
**
*
Z
SR = shift register contents
LR = latch register contents
D = data (L, H) logic level
U = remains unchanged
↑
= LowtoHigh
↓
= HightoLow
* = depends on Reset and Shift Clock inputs
** = depends on Latch Clock input
PIN DESCRIPTIONS
INPUTS
A (Pin 14)
Serial Data Input. The data on this pin is shifted into the
8bit serial shift register.
CONTROL INPUTS
Shift Clock (Pin 11)
Shift Register Clock Input. A low tohigh transition on
this input causes the data at the Serial Input pin to be shifted
into the 8bit shift register.
Reset (Pin 10)
Activelow, Asynchronous, Shift Register Reset Input. A
low on this pin resets the shift register portion of this device
only. The 8bit latch is not affected.
Latch Clock (Pin 12)
Storage Latch Clock Input. A lowtohigh transition on
this input latches the shift register data.
Output Enable (Pin 13)
Activelow Output Enable. A low on this input allows the
data from the latches to be presented at the outputs. A high
on this input forces the outputs (Q
A
Q
H
) into the
highimpedance state. The serial output is not affected by
this control unit.
OUTPUTS
Q
A
Q
H
(Pins 15, 1, 2, 3, 4, 5, 6, 7)
Noninverted, 3state, latch outputs.
SQ
H
(Pin 9)
Noninverted, Serial Data Output. This is the output of the
eighth stage of the 8bit shift register. This output does not
have threestate capability.
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參數(shù)描述
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MC74HC595ADG 功能描述:計(jì)數(shù)器移位寄存器 8-Bit 3 State Shift RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel
MC74HC595ADH 制造商:Rochester Electronics LLC 功能描述: 制造商:ON Semiconductor 功能描述:
MC74HC595ADR 制造商:Rochester Electronics LLC 功能描述: 制造商:ON Semiconductor 功能描述:
MC74HC595ADR2 功能描述:計(jì)數(shù)器移位寄存器 8-Bit 3 State Shift RoHS:否 制造商:Texas Instruments 計(jì)數(shù)器類型: 計(jì)數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時(shí)間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel
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