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CD74AC139E Folha de dados(PDF) 1 Page - Texas Instruments |
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CD74AC139E Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 14 page CD54AC139, CD74AC139 DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS SCHS332 – MARCH 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D AC Types Feature 1.5-V to 5.5-V Operation and Balanced Noise Immunity at 30% of the Supply Voltage D Buffered Inputs D Incorporate Two Enable Inputs to Simplify Cascading and/or Data Reception D Speed of Bipolar F, AS, and S, With Significantly Reduced Power Consumption D Balanced Propagation Delays D ±24-mA Output Drive Current – Fanout to 15 F Devices D SCR-Latchup-Resistant CMOS Process and Circuit Design D Exceeds 2-kV ESD Protection Per MIL-STD-883, Method 3015 description/ordering information The ’AC139 devices are dual 2-line to 4-line decoders/demultiplexers designed for 1.5-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. The active-low enable (G) input can be used as a data line in demultiplexing applications. These decoders/demultiplexers feature fully buffered inputs, each of which represents only one normalized load to its driving circuit. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP – E Tube CD74AC139E CD74AC139E 55 °Cto125°C SOIC M Tube CD74AC139M AC139M –55 °C to 125°C SOIC – M Tape and reel CD74AC139M96 AC139M CDIP – F Tube CD54AC139F3A CD54AC139F3A † 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 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. CD54AC139 ...F PACKAGE CD74AC139 ...E OR M PACKAGE (TOP VIEW) 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 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. |
Nº de peça semelhante - CD74AC139E |
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Descrição semelhante - CD74AC139E |
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