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SN74LS221D Datasheet(PDF) 1 Page - Texas Instruments |
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SN74LS221D Datasheet(HTML) 1 Page - Texas Instruments |
1 / 25 page SN54221, SN54LS221, SN74221, SN74LS221 DUAL MONOSTABLE MULTIVIBRATORS WITH SCHMITT TRIGGER INPUTS SDLS213B − DECEMBER 1983 − REVISED NOVEMBER 2004 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Dual Versions of Highly Stable SN54121 and SN74121 One Shots D SN54221 and SN74221 Demonstrate Electrical and Switching Characteristics That Are Virtually Identical to the SN54121 and SN74121 One Shots D Pinout Is Identical to the SN54123, SN74123, SN54LS123, and SN74LS123 D Overriding Clear Terminates Output Pulse TYPE MAXIMUM OUTPUT PULSE LENGTH(S) SN54221 21 SN74221 28 SN54LS221 49 SN74LS221 70 description/ordering information The ’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 TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP − N Tube SN74221N SN74221N PDIP − N Tube SN74LS221N SN74LS221N 0 °C to 70°C SOIC − D Tube SN74LS221D LS221 0 °C to 70°C SOIC − D Tape and reel SN74LS221DR LS221 SOP − NS Tape and reel SN74LS221NSR 74LS221 SSOP − DB Tape and reel SN74LS221DBR LS221 CDIP − J Tube SNJ54221J SNJ54221J −55 °C to 125°C CDIP − J Tube SNJ54LS221J SNJ54LS221J −55 C to 125 C LCCC − FK Tube SNJ54LS221FK SNJ54LS221FK † 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 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. 32 1 20 19 9 10 11 12 13 4 5 6 7 8 18 17 16 15 14 1Cext 1Q NC 2Q 2CLR 1CLR 1Q NC 2Q 2Cext 1A 1B 1CLR 1Q 2Q 2Cext 2Rext/Cext GND VCC 1Rext/Cext 1Cext 1Q 2Q 2CLR 2B 2A SN54221, SN54LS221 ...J PACKAGE SN74221 ...N PACKAGE SN74LS221 . . . D, DB, N, OR NS PACKAGE (TOP VIEW) SN54LS221 . . . FK PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 NC − No internal connection On products compliant to MILPRF38535, all parameters are tested unless otherwise noted. On all other products, 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. |
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