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SN74AHCT139N Datasheet(PDF) 1 Page - Texas Instruments |
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SN74AHCT139N Datasheet(HTML) 1 Page - Texas Instruments |
1 / 14 page SN54AHCT139, SN74AHCT139 DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS SCLS267M – DECEMBER 1995 – REVISED MARCH 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Inputs Are TTL-Voltage Compatible D Designed Specifically for High-Speed Memory Decoders and Data-Transmission Systems D Incorporate Two Enable Inputs to Simplify Cascading and/or Data Reception D Latch-Up Performance Exceeds 250 mA Per JESD 17 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) description/ordering information The ’AHCT139 devices are dual 2-line to 4-line decoders/demultiplexers designed for 4.5-V to 5.5-V VCC operation. These devices are designed to be used in high-performance memory-decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can be used to minimize the effects of system decoding. When used with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory usually are less than the typical access time of the memory. This means that the effective system delay introduced by the decoders is negligible. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP – N Tube SN74AHCT139N SN74AHCT139N SOIC – D Tube SN74AHCT139D AHCT139 SOIC – D Tape and reel SN74AHCT139DR AHCT139 –40 °Cto85°C SOP – NS Tape and reel SN74AHCT139NSR AHCT139 –40 °C to 85°C SSOP – DB Tape and reel SN74AHCT139DBR HB139 TSSOP PW Tube SN74AHCT139PW HB139 TSSOP – PW Tape and reel SN74AHCT139PWR HB139 TVSOP – DGV Tape and reel SN74AHCT139DGVR HB139 CDIP – J Tube SNJ54AHCT139J SNJ54AHCT139J –55 °C to 125°C CFP – W Tube SNJ54AHCT139W SNJ54AHCT139W LCCC – FK Tube SNJ54AHCT13FK SNJ54AHCT139FK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Copyright 2003, Texas Instruments Incorporated UNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information 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. 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 2A 2B NC 2Y0 2Y1 1B 1Y0 NC 1Y1 1Y2 SN54AHCT139 . . . FK PACKAGE (TOP VIEW) NC – No internal connection 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 1G 1A 1B 1Y0 1Y1 1Y2 1Y3 GND VCC 2G 2A 2B 2Y0 2Y1 2Y2 2Y3 SN54AHCT139 ...J OR W PACKAGE SN74AHCT139 . . . D, DB, DGV, N, NS, OR PW PACKAGE (TOP VIEW) |
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