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SN74HC595ANSR PDF预览

SN74HC595ANSR

更新时间: 2024-11-23 12:27:59
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德州仪器 - TI 移位寄存器输出元件
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27页 1237K
描述
8-BIT SHIFT REGISTERS WITH 3-STATE OUTPUT REGISTERS

SN74HC595ANSR 数据手册

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SN54HC595  
SN74HC595  
www.ti.com  
SCLS041H DECEMBER 1982REVISED NOVEMBER 2009  
8-BIT SHIFT REGISTERS WITH 3-STATE OUTPUT REGISTERS  
Check for Samples: SN54HC595 SN74HC595  
1
FEATURES  
SN54HC595...J OR W PACKAGE  
SN74HC595...D, DB, DW, N, NS, OR PW PACKAGE  
(TOP VIEW)  
8-Bit Serial-In, Parallel-Out Shift  
Wide Operating Voltage Range of 2 V to 6 V  
High-Current 3-State Outputs Can Drive Up To  
15 LSTTL Loads  
Q
Q
V
CC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
B
Q
C
D
A
Low Power Consumption: 80-μA (Max) ICC  
tpd = 13 ns (Typ)  
Q
SER  
OE  
Q
E
Q
Q
12 RCLK  
F
±6-mA Output Drive at 5 V  
11  
10  
9
SRCLK  
SRCLR  
G
Low Input Current: 1 μA (Max)  
Shift Register Has Direct Clear  
Q
H
GND  
Q  
H
DESCRIPTION  
SN54HC595...FK PACKAGE  
(TOP VIEW)  
The 'HC595 devices contain an 8-bit serial-in,  
parallel-out shift register that feeds an 8-bit D-type  
storage register. The storage register has parallel  
3-state outputs. Separate clocks are provided for both  
the shift and storage register. The shift register has a  
direct overriding clear (SRCLR) input, serial (SER)  
input, and serial outputs for cascading. When the  
output-enable (OE) input is high, the outputs are in  
the high-impedance state.  
3
2
1
2 0 1 9  
18  
SER  
OE  
Q
4
5
6
7
8
D
Q
17  
16  
E
NC  
NC  
15 RCLK  
Q
F
14  
9 10 11 12 1 3  
Both the shift register clock (SRCLK) and storage  
register clock (RCLK) are positive-edge triggered. If  
both clocks are connected together, the shift register  
always is one clock pulse ahead of the storage  
register.  
SRCLK  
Q
G
NC – No internal connection  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas  
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
PRODUCTION DATA information is current as of publication date.  
Copyright © 1982–2009, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  

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