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SN54AHCT74 PDF预览

SN54AHCT74

更新时间： 2024-11-03 23:06:07
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德州仪器 - TI 触发器
页数 文件大小 规格书
19页 647K
描述
DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLEAR AND PRESET

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SN54AHCT74 数据手册

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SN54AHCT74, SN74AHCT74  
DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS  
WITH CLEAR AND PRESET  
SCLS263N – DECEMBER 1995 – REVISED JULY 2003  
Inputs Are TTL-Voltage Compatible  
ESD Protection Exceeds JESD 22  
– 2000-V Human-Body Model (A114-A)  
– 200-V Machine Model (A115-A)  
– 1000-V Charged-Device Model (C101)  
Latch-Up Performance Exceeds 250 mA Per  
JESD 17  
SN54AHCT74 . . . J OR W PACKAGE  
SN74AHCT74 . . . D, DB, DGV, N, NS,  
OR PW PACKAGE  
SN74AHCT74 . . . RGY PACKAGE  
(TOP VIEW)  
SN54AHCT74 . . . FK PACKAGE  
(TOP VIEW)  
(TOP VIEW)  
1CLR  
1D  
V
CC  
13 2CLR  
1
2
3
4
5
6
7
14  
1
14  
3
2
1 20 19  
18  
1D  
1CLK  
1PRE  
1Q  
13 2CLR  
2
3
4
5
6
2D  
1CLK  
NC  
4
5
6
7
8
12  
11  
10  
9
12  
11  
10  
9
1CLK  
1PRE  
1Q  
2D  
2D  
NC  
17  
16  
2CLK  
2PRE  
2Q  
2CLK  
2PRE  
2Q  
2CLK  
1PRE  
NC  
15 NC  
14  
9 10 11 12 13  
1Q  
1Q  
2PRE  
1Q  
8
7
8
GND  
2Q  
NC – No internal connection  
description/ordering information  
The ’AHCT74 dual positive-edge-triggered devices are D-type flip-flops.  
A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs, regardless of the levels of the  
other inputs. When PRE and CLR are inactive (high), data at the data (D) input meeting the setup time  
requirements is transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs  
at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold-time interval,  
data at the D input can be changed without affecting the levels at the outputs.  
ORDERING INFORMATION  
ORDERABLE  
PART NUMBER  
TOP-SIDE  
MARKING  
†
PACKAGE  
T
A
QFN – RGY  
PDIP – N  
Tape and reel  
Tube  
SN74AHCT74RGYR  
SN74AHCT74N  
HB74  
SN74AHCT74N  
Tube  
SN74AHCT74D  
SOIC – D  
AHCT74  
Tape and reel  
Tape and reel  
Tape and reel  
Tube  
SN74AHCT74DR  
SN74AHCT74NSR  
SN74AHCT74DBR  
SN74AHCT74PW  
SN74AHCT74PWR  
SN74AHCT74DGVR  
SNJ54AHCT74J  
–40°C to 85°C  
SOP – NS  
AHCT74  
HB74  
SSOP – DB  
TSSOP – PW  
HB74  
Tape and reel  
Tape and reel  
Tube  
TVSOP – DGV  
CDIP – J  
HB74  
SNJ54AHCT74J  
SNJ54AHCT74W  
SNJ54AHCT74FK  
–55°C to 125°C  
CFP – W  
Tube  
SNJ54AHCT74W  
SNJ54AHCT74FK  
LCCC – FK  
Tube  
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines  
are available at www.ti.com/sc/package.  
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 2003, 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...19

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SN54AHCT74 替代型号

型号 品牌 替代类型 描述 数据表
SN74AHCT74 TI

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