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5962-9078003M3A

更新时间: 2024-10-01 11:07:59
品牌 Logo 应用领域
德州仪器 - TI 触发器
页数 文件大小 规格书
7页 108K
描述
具有三态输出的 8 位总线接口触发器 | FK | 28 | -55 to 125

5962-9078003M3A 数据手册

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SN54AS825A, SN74AS825A  
8-BIT BUS-INTERFACE FLIP-FLOPS  
WITH 3-STATE OUTPUTS  
SDAS020B – JUNE 1984 – REVISED AUGUST 1995  
SN54AS825A . . . JT PACKAGE  
SN74AS825A . . . DW OR NT PACKAGE  
(TOP VIEW)  
Functionally Equivalent to AMD’s AM29825  
Improved I Specifications  
OH  
Multiple Output Enables Allow Multiuser  
Control of the Interface  
OE1  
OE2  
1D  
2D  
3D  
4D  
5D  
6D  
7D  
V
CC  
1
2
3
4
5
6
7
8
9
24  
23 OE3  
22 1Q  
21 2Q  
20 3Q  
19 4Q  
18 5Q  
17 6Q  
16 7Q  
15 8Q  
14 CLKEN  
13 CLK  
Outputs Have Undershoot-Protection  
Circuitry  
Power-Up High-Impedance State  
Buffered Control Inputs Reduce dc  
Loading Effects  
Package Options Include Plastic  
Small-Outline (DW) Packages, Ceramic  
Chip Carriers (FK), and Standard Plastic  
(NT) and Ceramic (JT) 300-mil DIPs  
8D 10  
CLR 11  
GND 12  
description  
These 8-bit flip-flops feature 3-state outputs  
designed specifically for driving highly capacitive  
or relatively low-impedance loads. These devices  
are particularly suitable for implementing  
multiuser registers, I/O ports, bidirectional bus  
drivers, and working registers.  
SN54AS825A . . . FK PACKAGE  
(TOP VIEW)  
4
3
2
1
28 27 26  
25  
2D  
3D  
4D  
NC  
5D  
6D  
7D  
2Q  
3Q  
4Q  
NC  
5Q  
6Q  
7Q  
5
With the clock-enable (CLKEN) input low, the  
eight D-type edge-triggered flip-flops enter data  
on the low-to-high transitions of the clock (CLK)  
input. Taking CLKEN high disables the clock  
buffer, latching the outputs. These devices have  
noninverting data (D) inputs. Taking the clear  
(CLR) input low causes the eight Q outputs to go  
low independently of the clock.  
24  
23  
22  
21  
20  
19  
6
7
8
9
10  
11  
12 13 14 15 16 17 18  
Multiuser buffered output-enable (OE1, OE2, and  
OE3) inputs can be used to place the eight outputs  
in either a normal logic state (high or low logic  
NC – No internal connection  
level) or  
a high-impedance state. In the  
high-impedance state, the outputs neither load  
nor drive the bus lines significantly. The high-  
impedance state and increased drive provide the  
capability to drive bus lines without interface or  
pullup components.  
The output enables do not affect the internal operation of the flip-flops. Old data can be retained or new data  
can be entered while the outputs are in the high-impedance state.  
The SN54AS825A is characterized for operation over the full military temperature range of 55°C to 125°C. The  
SN74AS825A is characterized for operation from 0°C to 70°C.  
Copyright 1995, Texas Instruments Incorporated  
PRODUCTION DATA information is 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  

5962-9078003M3A 替代型号

型号 品牌 替代类型 描述 数据表
SNJ54AS825AFK TI

完全替代

具有三态输出的 8 位总线接口触发器 | FK | 28 | -55 to 125
SNJ54AS825FK TI

功能相似

8-Bit Bus-Interface Flip-Flops With 3-State Outputs 28-LCCC -55 to 125

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