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SN74HC138NE4 Fiches technique(PDF) 1 Page - Texas Instruments |
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SN74HC138NE4 Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 22 page SN54HC138, SN74HC138 3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS SCLS107E − DECEMBER 1982 − REVISED SEPTEMBER 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Targeted Specifically for High-Speed Memory Decoders and Data-Transmission Systems D Wide Operating Voltage Range of 2 V to 6 V D Outputs Can Drive Up To 10 LSTTL Loads D Low Power Consumption, 80-μA Max I CC D Typical t pd = 15 ns D ±4-mA Output Drive at 5 V D Low Input Current of 1 μA Max D Incorporate Three Enable Inputs to Simplify Cascading and/or Data Reception description/ordering information The ’HC138 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 employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory are usually 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 of 25 SN74HC138N SN74HC138N Tube of 40 SN74HC138D SOIC − D Reel of 2500 SN74HC138DR HC138 SOIC D Reel of 250 SN74HC138DT HC138 −40 °C to 85°C SOP − NS Reel of 2000 SN74HC138NSR HC138 40 C to 85 C SSOP − DB Reel of 2000 SN74HC138DBR HC138 Tube of 90 SN74HC138PW TSSOP − PW Reel of 2000 SN74HC138PWR HC138 TSSOP PW Reel of 250 SN74HC138PWT HC138 CDIP − J Tube of 25 SNJ54HC138J SNJ54HC138J −55 °C to 125°C CFP − W Tube of 150 SNJ54HC138W SNJ54HC138W 55 C to 125 C LCCC − FK Tube of 55 SNJ54HC138FK SNJ54HC138FK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 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 SN54HC138 . . . 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 SN54HC138 ...J OR W PACKAGE SN74HC138 . . . D, DB, N, NS, OR PW PACKAGE (TOP VIEW) Copyright © 2003, Texas Instruments Incorporated 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. 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. 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. |
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