參數(shù)資料
型號(hào): SN74ACT74MDREP
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): 鎖存器
英文描述: ACT SERIES, DUAL POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, PDSO14
封裝: PLASTIC, SOIC-14
文件頁(yè)數(shù): 1/7頁(yè)
文件大?。?/td> 111K
代理商: SN74ACT74MDREP
SN74ACT74EP
DUAL POSITIVEEDGETRIGGERED DTYPE FLIPFLOP
WITH CLEAR AND PRESET
SCAS722 OCTOBER 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Controlled Baseline
One Assembly/Test Site, One Fabrication
Site
D Extended Temperature Performance of
55
°C to 125°C
D Enhanced Diminishing Manufacturing
Sources (DMS) Support
D Enhanced Product-Change Notification
D Qualification Pedigree
Component qualification in accordance with JEDEC and industry
standards to ensure reliable operation over an extended
temperature range. This includes, but is not limited to, Highly
Accelerated Stress Test (HAST) or biased 85/85, temperature
cycle, autoclave or unbiased HAST, electromigration, bond
intermetallic life, and mold compound life. Such qualification
testing should not be viewed as justifying use of this component
beyond specified performance and environmental limits.
D 4.5-V to 5.5-V VCC Operation
D Inputs Accept Voltages to 5.5 V
D Max tpd of 10.5 ns at 5 V
D Inputs Are TTL-Voltage Compatible
description/ordering information
The SN74ACT74-EP is a dual positive-edge-triggered D-type flip-flop.
A low level at the preset (PRE) or clear (CLR) input 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 D can be changed without affecting the levels at the outputs.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
55
°C to 125°C
SOIC D
Tape and reel
SN74ACT74MDREP
SACT74MEP
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
FUNCTION TABLE
(each flip-flop)
INPUTS
OUTPUTS
PRE
CLR
CLK
D
Q
L
H
X
H
L
H
LX
XL
H
L
LX
X
H
HH
L
H
LL
H
L
X
Q0
§ This configuration is nonstable; that is, it does not
persist when either PRE or CLR returns to its
inactive (high) level.
Copyright
2003, 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.
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.
1
2
3
4
5
6
7
14
13
12
11
10
9
8
1CLR
1D
1CLK
1PRE
1Q
GND
VCC
2CLR
2D
2CLK
2PRE
2Q
D PACKAGE
(TOP VIEW)
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