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SN74HC594

更新时间： 2024-11-22 23:03:15
品牌 Logo 应用领域
德州仪器 - TI 移位寄存器输出元件
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9页 156K
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8-BIT SHIFT REGISTERS WITH OUTPUT REGISTERS

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SN74HC594 数据手册

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SN54HC594, SN74HC594  
8-BIT SHIFT REGISTERS  
WITH OUTPUT REGISTERS  
SCLS040C – DECEMBER 1982 – REVISED FEBRUARY 1998  
SN54HC594 . . . J OR W PACKAGE  
SN74HC594 . . . D, DB, OR N PACKAGE  
(TOP VIEW)  
8-Bit Serial-In, Parallel-Out Shift Registers  
With Storage  
Independent Direct Overriding Clears on  
Shift and Storage Registers  
Q
Q
V
CC  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
B
Independent Clocks for Both Shift and  
Storage Registers  
Q
C
D
A
Q
SER  
Q
RCLR  
RCLK  
SRCLK  
SRCLR  
High-Current Outputs Can Drive Up to  
15 LSTTL Loads  
E
Q
Q
F
Package Options Include Plastic  
G
Q
Small-Outline (D), Shrink Small-Outline  
(DB), and Ceramic Flat (W) Packages,  
Ceramic Chip Carriers (FK), and Standard  
Plastic (N) and Ceramic (J) 300-mil DIPs  
H
GND  
Q
H′  
SN54HC594 . . . FK PACKAGE  
(TOP VIEW)  
description  
The ’HC594 devices contain an 8-bit serial-in,  
parallel-out shift register that feeds an 8-bit D-type  
storage register. Separate clocks and direct  
overriding clear (RCLR, SRCLR) inputs are  
provided on both the shift and storage registers.  
3
2
1
20 19  
18  
SER  
RCLR  
NC  
Q
4
5
6
7
8
D
Q
17  
16  
E
NC  
A serial (Q ) output is provided for cascading  
15 RCLK  
14  
9 10 11 12 13  
Q
F
H′  
purposes.  
SRCLK  
Q
G
Boththeshiftregister(RCLK)andstorageregister  
(SRCLK) clocks are positive edge triggered. If  
both clocks are connected together, the shift  
register is always one count pulse ahead of the  
storage register.  
NC – No internal connection  
The parallel (Q –Q ) outputs have high-current  
A
H
capability. Q is a standard output.  
H′  
The SN54HC594 is characterized for operation over the full military temperature range of –55°C to 125°C. The  
SN74HC594 is characterized for operation from –40°C to 85°C.  
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.  
Copyright 1998, Texas Instruments Incorporated  
UNLESS OTHERWISE NOTED this document contains PRODUCTION  
DATA information current as of publication date. Products conform to  
specifications per the terms of Texas Instruments standard warranty.  
Production processing does not necessarily include testing of all  
parameters.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...9

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