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SN74AHC139RGYR bảng dữ liệu(PDF) 1 Page - Texas Instruments |
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SN74AHC139RGYR bảng dữ liệu(HTML) 1 Page - Texas Instruments |
1 / 15 page SN54AHC139, SN74AHC139 DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS SCLS259K – DECEMBER 1995 – REVISED MARCH 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Operating Range 2-V to 5.5-V VCC 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) 32 1 20 19 910 11 1213 4 5 6 7 8 18 17 16 15 14 2A 2B NC 2Y0 2Y1 1B 1Y0 NC 1Y1 1Y2 SN54AHC139 ...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 SN54AHC139 ...J OR W PACKAGE SN74AHC139 . . . D, DB, DGV, N, NS OR PW PACKAGE (TOP VIEW) SN74AHC139 . . . RGY PACKAGE (TOP VIEW) 116 89 2 3 4 5 6 7 15 14 13 12 11 10 2G 2A 2B 2Y0 2Y1 2Y2 1A 1B 1Y0 1Y1 1Y2 1Y3 description/ordering information The ’AHC139 devices are dual 2-line to 4-line decoders/demultiplexers designed for 2-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 QFN – RGY Tape and reel SN74AHC139RGYR HA139 PDIP – N Tube SN74AHC139N SN74AHC139N SOIC – D Tube SN74AHC139D AHC139 SOIC – D Tape and reel SN74AHC139DR AHC139 –40 °C to 85°C SOP – NS Tape and reel SN74AHC139NSR AHC139 SSOP – DB Tape and reel SN74AHC139DBR HA139 TSSOP PW Tube SN74AHC139PW HA139 TSSOP – PW Tape and reel SN74AHC139PWR HA139 TVSOP – DGV Tape and reel SN74AHC139DGVR HA139 CDIP – J Tube SNJ54AHC139J SNJ54AHC139J –55 °C to 125°C CFP – W Tube SNJ54AHC139W SNJ54AHC139W LCCC – FK Tube SNJ54AHC139FK SNJ54AHC139FK † 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. |
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