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5962-9851601Q2A Datasheet(PDF) 1 Page - Texas Instruments |
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5962-9851601Q2A Datasheet(HTML) 1 Page - Texas Instruments |
1 / 28 page SN54AHC138, SN74AHC138 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS SCLS258L − DECEMBER 1995 − REVISED JULY 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Operating Range 2-V to 5.5-V V CC D Designed Specifically for High-Speed Memory Decoders and Data-Transmission Systems D Incorporate Three 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 Y1 Y2 NC Y3 Y4 C G2A NC G2B G1 SN54AHC138 ...FK PACKAGE (TOP VIEW) NC − No internal connection 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 A B C G2A G2B G1 Y7 GND VCC Y0 Y1 Y2 Y3 Y4 Y5 Y6 SN54AHC138 ...J OR W PACKAGE SN74AHC138 ...D, DB, DGV, N, NS, OR PW PACKAGE (TOP VIEW) SN74AHC138 . . . RGY PACKAGE (TOP VIEW) 116 89 2 3 4 5 6 7 15 14 13 12 11 10 Y0 Y1 Y2 Y3 Y4 Y5 B C G2A G2B G1 Y7 description/ordering information The ’AHC138 decoders/demultiplexers are designed for high-performance memory-decoding and data-routing applications that require very short propagation-delay times. In high-performance memory systems, these decoders can be used to minimize the effects of system decoding. When employed 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 SN74AHC138RGYR HA138 PDIP − N Tube SN74AHC138N SN74AHC138N SOIC D Tube SN74AHC138D AHC138 SOIC − D Tape and reel SN74AHC138DR AHC138 −40 °C to 85°C SOP − NS Tape and reel SN74AHC138NSR AHC138 SSOP − DB Tape and reel SN74AHC138DBR HA138 TSSOP PW Tube SN74AHC138PW HA138 TSSOP − PW Tape and reel SN74AHC138PWR HA138 TVSOP − DGV Tape and reel SN74AHC138DGVR HA138 CDIP − J Tube SNJ54AHC138J SNJ54AHC138J −55 °C to 125°C CFP − W Tube SNJ54AHC138W SNJ54AHC138W 55 C to 125 C LCCC − FK Tube SNJ54AHC138FK SNJ54AHC138FK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. Copyright © 2003, 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. 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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