SN74221N ,Dual monostable multivibrators with Schmitt-trigger inputsfeatures a negative-transition-2C 8 14 2CLRtriggered input and a positive-transition-triggeredext9 ..
SN7422N , DUAL 4-INPUT POSITIVE-NAND GATES WITH OPEN-COLLECTOR OUTPUTS
SN7422N , DUAL 4-INPUT POSITIVE-NAND GATES WITH OPEN-COLLECTOR OUTPUTS
SN74246N , BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS
SN74247N , BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS
SN74247N , BCD-TO-SEVEN-SEGMENT DECODERS/DRIVERS
SN74LS00 ,Quad 2-Input NAND GateMaximum Ratings(1)over operating free-air temperature range (unless otherwise noted)MIN MAX UNIT(2) ..
SN74LS00D ,QUAD 2-INPUT NAND GATEBlock Diagram... 102 Applications..... 18.3 Feature Description.... 103 Description....... 18.4 Dev ..
SN74LS00D ,QUAD 2-INPUT NAND GATE
SN74LS00DBR ,Quad 2-input positive-NAND gatesLogic Diagram, Each Gate (Positive Logic)AYB1An IMPORTANT NOTICE at the end of this data sheet addr ..
SN74LS00DBR ,Quad 2-input positive-NAND gatesLogic Diagram, Each Gate (Positive Logic)AYB1An IMPORTANT NOTICE at the end of this data sheet addr ..
SN74LS00DR ,Quad 2-input positive-NAND gatesElectrical Characteristics: SNx4S00 ....... 612.2 Related Links.. 146.8 Switching Characteristics: ..
SN74221N
Dual monostable multivibrators with Schmitt-trigger inputs
and SN74121 One Shots Pinout Is Identical to the SN54123,
SN74123, SN54LS123, and SN74LS123 Overriding Clear Terminates Output Pulse
TYPE
MAXIMUM
OUTPUT
PULSE
LENGTH(S)SN54221 21
SN74221 28
SN54LS221 49
SN74LS221 70
description/ordering informationThe ’221 and ’LS221 devices are dual
multivibrators with performance characteristics
virtually identical to those of the ’121 devices.
Each multivibrator features a negative-transition-
triggered input and a positive-transition-triggered
input, either of which can be used as an inhibit
input.
ORDERING INFORMATION†Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
1Cext
2CLR
1CLR
2Cext1ANC2B1R
ext
GND
1CLR
2Cextext/Cext
GND
1Rext/Cextext
2CLR
SN54LS221... FK PACKAGE
(TOP VIEW)ext
ext
ext
NC − No internal connection
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.
