SN54F157A, SN74F157A QUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS

Transcription

1 SNFA, SNFA QUADRUPLE -LINE TO -LINE DATA SELECTORS/MULTIPLEXERS SDFS0A MARCH 8 REVISED OCTOBER Buffered Inputs and Outputs Package Optio Include Plastic Small-Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 00-mil DIPs description The FA is a quadruple -input data selector/multiplexer featuring a common strobe () input. When the strobe is high, all outputs are low. When the strobe is low, a -bit word is selected from one of two sources and is routed to the four outputs. The FA provides true data. The SNFA is characterized for operation over the full military temperature range of C to C. The SNFA is characterized for operation from 0 C to 0 C. FUTION TABLE INPUTS OUTPUT A /B A B H X X X L L L L X L L L H X H L H X L L L H X H H SNFA...J PACKAE SNFA...D OR N PACKAE (TOP VIEW) SNFA... FK PACKAE (TOP VIEW) B A B ND 8 A B ND 0 V CC V CC A B A B No internal connection A B A PRODUCTION DATA information is current as of publication date. Products conform to specificatio per the terms of Texas Itruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright, Texas Itruments Incorporated POST OFFICE BOX 0 DALLAS, TEXAS

2 SNFA, SNFA QUADRUPLE -LINE TO -LINE DATA SELECTORS/MULTIPLEXERS SDFS0A MARCH 8 REVISED OCTOBER logic symbol logic diagram (positive logic) A /B A B A B A B 0 EN MUX A B A B 0 This symbol is in accordance with ANSI/IEEE Std -8 and IEC Publication -. Pin numbers shown are for the D, J, and N packages. A B A /B absolute maximum ratings over operating free-air temperature range (unless otherwise noted) Supply voltage range, V CC V to V Input voltage range (see Note ) V to V Input current range ma to ma Voltage range applied to any output in the high state V to V CC Current into any output in the low state ma Operating free-air temperature range: SNFA C to C SNFA C to 0 C Storage temperature range C to 0 C Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditio beyond those indicated under recommended operating conditio is not implied. Exposure to absolute-maximum-rated conditio for extended periods may affect device reliability. NOTE : The input voltage rating may be exceeded provided that the input current rating is observed. recommended operating conditio SNFA SNFA MIN NOM MAX MIN NOM MAX VCC Supply voltage.... V VIH High-level input voltage V VIL Low-level input voltage V IIK Input clamp current 8 8 ma IOH High-level output current ma IOL Low-level output current 0 0 ma TA Operating free-air temperature 0 0 C POST OFFICE BOX 0 DALLAS, TEXAS

3 SNFA, SNFA QUADRUPLE -LINE TO -LINE DATA SELECTORS/MULTIPLEXERS SDFS0A MARCH 8 REVISED OCTOBER electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS SNFA SNFA MIN TP MAX MIN TP MAX VIK VCC =. V, II = 8 ma.. V VOH VCC =. V, IOH = ma.... VCC =. V, IOH = ma. VOL VCC =. V, IOL = 0 ma V II VCC =. V, VI = V ma IIH VCC =. V, VI =. V 0 0 µa IIL VCC =. V, VI = 0. V ma IOS VCC =. V, VO = ma ICC VCC =. V, VI =. V. ma All typical values are at VCC = V, TA = C. Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. switching characteristics (see Note ) V PARAMETER FROM TO (INPUT) (OUTPUT) AorB VCC = V, CL = 0 pf, RL = 00 Ω, TA = C VCC =. V to. V, CL = 0 pf, RL = 00 Ω, TA = MIN to MAX FA SNFA SNFA MIN TP MAX MIN MAX MIN MAX For conditio shown as MIN or MAX, use the appropriate value specified under recommended operating conditio. NOTE : Load circuits and voltage waveforms are shown in Section POST OFFICE BOX 0 DALLAS, TEXAS

4 SNFA, SNFA QUADRUPLE -LINE TO -LINE DATA SELECTORS/MULTIPLEXERS SDFS0A MARCH 8 REVISED OCTOBER POST OFFICE BOX 0 DALLAS, TEXAS

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