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SN74LV123A-Q1 Datasheet(PDF) 1 Page - Texas Instruments

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Part No. SN74LV123A-Q1
Description  DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR WITH SCHMITT - TRIGGER INPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN74LV123A-Q1 Datasheet(HTML) 1 Page - Texas Instruments

 
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SN74LV123AQ1
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
WITH SCHMITT TRIGGER INPUTS
SCLS467B − FEBRUARY 2003 − REVISED MAY 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Qualification in Accordance With
AEC-Q100
D Qualified for Automotive Applications
D Customer-Specific Configuration Control
Can Be Supported Along With
Major-Change Approval
D Typical VOLP (Output Ground Bounce)
<0.8 V at VCC = 3.3 V, TA = 25°C
D Typical VOHV (Output VOH Undershoot)
>2.3 V at VCC = 3.3 V, TA = 25°C
D Supports Mixed-Mode Voltage Operation on
All Ports
D Schmitt-Trigger Circuitry on A, B, and CLR
Inputs for Slow Input Transition Rates
D Edge Triggered From Active-High or
Active-Low Gated Logic Inputs
D Ioff Supports Partial-Power-Down Mode
Operation
D Retriggerable for Very Long Output Pulses,
Up To 100% Duty Cycle
D Overriding Clear Terminates Output Pulse
D Glitch-Free Power-Up Reset on Outputs
D ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
− 1000-V Charged-Device Model (C101)
† Contact factory for details. Q100 qualification data available on
request.
description/ordering information
The SN74LV123A is a dual retriggerable monostable multivibrator designed for 2-V to 5.5-V VCC operation.
This edge-triggered multivibrator features output pulse-duration control by three methods. In the first method,
the A input is low, and the B input goes high. In the second method, the B input is high, and the A input goes
low. In the third method, the A input is low, the B input is high, and the clear (CLR) input goes high.
The output pulse duration is programmable by selecting external resistance and capacitance values. The
external timing capacitor must be connected between Cext and Rext/Cext (positive) and an external resistor
connected between Rext/Cext and VCC. To obtain variable pulse durations, connect an external variable
resistance between Rext/Cext and VCC. The output pulse duration also can be reduced by taking CLR low.
ORDERING INFORMATION
TA
PACKAGE‡
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
−40
°C to 105°C
TSSOP − PW
Tape and reel
SN74LV123ATPWRQ1
L123ATQ
‡ Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
Copyright
 2004, Texas Instruments Incorporated
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.
PW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1A
1B
1CLR
1Q
2Q
2Cext
2Rext/Cext
GND
VCC
1Rext/Cext
1Cext
1Q
2Q
2CLR
2B
2A
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.


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