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SNJ54ABT2952AFK PDF预览

SNJ54ABT2952AFK

更新时间： 2024-11-23 22:42:55
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德州仪器 - TI 总线收发器输出元件
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17页 403K
描述
OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

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SNJ54ABT2952AFK 数据手册

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SN54ABT2952A, SN74ABT2952A  
OCTAL BUS TRANSCEIVERS AND REGISTERS  
WITH 3-STATE OUTPUTS  
SCBS203D – AUGUST 1992 – REVISED JANUARY 1998  
SN54ABT2952A . . . JT OR W PACKAGE  
SN74ABT2952A . . . DB, DW, PW, OR NT PACKAGE  
(TOP VIEW)  
State-of-the-Art EPIC-ΙΙB BiCMOS Design  
Significantly Reduces Power Dissipation  
Two 8-Bit Back-to-Back Registers Store  
Data Flowing in Both Directions  
B8  
B7  
B6  
B5  
B4  
B3  
B2  
B1  
V
CC  
1
2
3
4
5
6
7
8
9
24  
23  
22  
21  
20  
19  
18  
17  
16  
A8  
A7  
A6  
A5  
A4  
A3  
A2  
A1  
Noninverting Outputs  
Typical V  
(Output Ground Bounce) < 1 V  
OLP  
at V  
= 5 V, T = 25°C  
CC  
A
Latch-Up Performance Exceeds 500 mA Per  
JESD 17  
ESD Protection Exceeds 2000 V Per  
MIL-STD-883, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
OEAB  
CLKAB 10  
15 OEBA  
Package Options Include Plastic  
CLKENAB  
GND  
CLKBA  
CLKENBA  
11  
12  
14  
13  
Small-Outline (DW), Shrink Small-Outline  
(DB), and Thin Shrink Small-Outline (PW)  
Packages, Ceramic Chip Carriers (FK),  
Ceramic Flat (W) Package, and Plastic (NT)  
and Ceramic (JT) DIPs  
SN54ABT2952A . . . FK PACKAGE  
(TOP VIEW)  
description  
4
3
2
1
28 27 26  
25  
The ’ABT2952A transceivers consist of two 8-bit  
back-to-back registers that store data flowing in  
both directions between two bidirectional buses.  
Data on the A or B bus is stored in the registers on  
the low-to-high transition of the clock (CLKAB or  
CLKBA) input provided that the clock-enable  
(CLKENAB or CLKENBA) input is low. Taking the  
output-enable (OEAB or OEBA) input low  
accesses the data on either port.  
5
6
7
8
9
B5  
B4  
B3  
NC  
B2  
A6  
A5  
A4  
NC  
A3  
A2  
A1  
24  
23  
22  
21  
20  
19  
B1 10  
OEAB  
11  
12 13 14 15 16 17 18  
To ensure the high-impedance state during power  
up or power down, OE should be tied to V  
CC  
through a pullup resistor; the minimum value of  
the resistor is determined by the current-sinking  
capability of the driver.  
NC – No internal connection  
The SN54ABT2952A is characterized for  
operation over the full military temperature range  
of –55°C to 125°C. The SN74ABT2952A 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.  
EPIC is a trademark of Texas Instruments Incorporated.  
Copyright 1998, Texas Instruments Incorporated  
On products compliant to MIL-PRF-38535, all parameters are tested  
unless otherwise noted. On all other products, production  
processing does not necessarily include testing of all parameters.  
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  
1234567...17

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