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SN74ABT377DWR PDF预览

SN74ABT377DWR

更新时间: 2024-01-29 18:24:59
品牌 Logo 应用领域
德州仪器 - TI 触发器时钟
页数 文件大小 规格书
14页 462K
描述
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLOCK ENABLE

SN74ABT377DWR 数据手册

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SN54ABT377, SN74ABT377  
OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS  
WITH CLOCK ENABLE  
SCBS156B – FEBRUARY 1991 – REVISED JULY 1994  
SN54ABT377 . . . J PACKAGE  
SN74ABT377 . . . DB, DW, OR N PACKAGE  
(TOP VIEW)  
State-of-the-Art EPIC-ΙΙB BiCMOS Design  
Significantly Reduces Power Dissipation  
Latch-Up Performance Exceeds 500 mA  
Per JEDEC Standard JESD-17  
CLKEN  
1Q  
V
CC  
1
2
3
4
5
6
7
8
9
10  
20  
19  
18  
17  
16  
15  
14  
Typical V  
(Output Ground Bounce)  
8Q  
8D  
7D  
7Q  
6Q  
6D  
OLP  
CC  
< 1 V at V  
= 5 V, T = 25°C  
1D  
2D  
2Q  
3Q  
A
High-Drive Outputs (32-mA I  
,
OH  
64-mA I  
)
OL  
Package Options Include Plastic  
3D  
Small-Outline (DW) and Shrink  
4D  
4Q  
13 5D  
12 5Q  
Small-Outline (DB) Packages, Ceramic  
Chip Carriers (FK), and Plastic (N) and  
Ceramic (J) DIPs  
11  
GND  
CLK  
description  
SN54ABT377 . . . FK PACKAGE  
(TOP VIEW)  
The ABT377 are 8-bit positive-edge-triggered  
D-type flip-flops with a clock (CLK) input. They are  
particularly suitable for implementing buffer and  
storage registers, shift registers, and pattern  
generators.  
3
2
1
20 19  
18 8D  
2D  
2Q  
3Q  
3D  
4D  
4
5
6
7
8
Data (D) input information that meets the setup  
time requirements is transferred to the Q outputs  
on the positive-going edge of the clock pulse if the  
commonclock-enable(CLKEN)inputislow. Clock  
triggering occurs at a particular voltage level and  
is not directly related to the transition time of the  
positive-going pulse. When the buffered clock  
(CLK) input is at either the high or low level, the  
D input signal has no effect at the output. The  
circuits are designed to prevent false clocking by  
transitions at CLKEN.  
17  
16  
15  
14  
7D  
7Q  
6Q  
6D  
9 10 11 12 13  
The SN74ABT377 is available in TI’s shrink small-outline package (DB), which provides the same I/O pin count  
and functionality of standard small-outline packages in less than half the printed-circuit-board area.  
The SN54ABT377 is characterized for operation over the full military temperature range of 55°C to 125°C. The  
SN74ABT377 is characterized for operation from 40°C to 85°C.  
FUNCTION TABLE  
(each flip-flop)  
INPUTS  
OUTPUT  
Q
CLKEN CLK  
D
X
H
L
H
L
X
Q
0
H
L
L
X
H or L  
X
Q
0
EPIC-ΙΙB is a trademark of Texas Instruments Incorporated.  
Copyright 1994, 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.  
2–1  
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  

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