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74ACT16952 PDF预览

74ACT16952

更新时间： 2024-11-18 23:00:15
品牌 Logo 应用领域
德州仪器 - TI 输出元件
页数 文件大小 规格书
9页 153K
描述
16-BIT REGISTERED TRANSCEIVERS WITH 3-STATE OUTPUTS

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74ACT16952 数据手册

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54ACT16952, 74ACT16952  
16-BIT REGISTERED TRANSCEIVERS  
WITH 3-STATE OUTPUTS  
SCAS159C – JANUARY 1991 – REVISED APRIL 1996  
54ACT16952 . . . WD PACKAGE  
74ACT16952 . . . DL PACKAGE  
(TOP VIEW)  
Members of the Texas Instruments  
Widebus Family  
Inputs Are TTL-Voltage Compatible  
Noninverting Outputs  
1
56  
55  
54  
53  
52  
51  
50  
49  
48  
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
32  
31  
30  
29  
1OEAB  
1CLKAB  
1CEAB  
GND  
1OEBA  
1CLKBA  
1CEBA  
GND  
Two 16-Bit, Back-to-Back Registers Store  
Data Flowing in Both Directions  
2
3
Flow-Through Architecture Optimizes  
PCB Layout  
4
5
1A1  
1B1  
6
1A2  
1B2  
Distributed V  
Minimizes High-Speed Switching Noise  
and GND Pin Configuration  
CC  
7
V
V
CC  
CC  
8
1A3  
1A4  
1A5  
GND  
1A6  
1A7  
1A8  
2A1  
2A2  
2A3  
GND  
2A4  
2A5  
2A6  
1B3  
1B4  
1B5  
GND  
1B6  
1B7  
1B8  
2B1  
2B2  
2B3  
GND  
2B4  
2B5  
2B6  
EPIC (Enhanced-Performance Implanted  
CMOS) 1-µm Process  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
500-mA Typical Latch-Up Immunity at  
125°C  
Package Options Include Plastic 300-mil  
Shrink Small-Outline (DL) Packages Using  
25-mil Center-to-Center Pin Spacings and  
380-mil Fine-Pitch Ceramic Flat (WD)  
Packages Using 25-mil Center-to-Center  
Pin Spacings  
description  
The ’ACT16952 are 16-bit registered transceivers  
that contain two sets of D-type flip-flops for  
temporary storage of data flowing in either  
direction. They can be used as two 8-bit  
transceivers or one 16-bit transceiver. Data on the  
A or B bus is stored in registers on the low-to-high  
transition of the clock (CLKAB or CLKBA) input,  
provided that the clock-enable (CEAB or CEBA)  
input is low. Taking the output-enable (OEAB or  
OEBA) input low accesses the data on either port.  
To avoid false clocking of the flip-flops, CEAB (or  
CEBA) should not be switched from low to high  
while CLKAB (or CLKBA) is low.  
V
V
CC  
CC  
2A7  
2A8  
GND  
2B7  
2B8  
GND  
2CEBA  
2CLKBA  
2OEBA  
2CEAB  
2CLKAB  
2OEAB  
The 74ACT16952 is packaged in TI’s shrink small-outline package, which provides twice the I/O pin count and  
functionality of standard small-outline packages in the same printed-circuit-board area.  
The 54ACT16952 is characterized for operation over the full military temperature range of –55°C to 125°C. The  
74ACT16952 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 and Widebus are trademarks of Texas Instruments Incorporated.  
Copyright 1996, 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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