UT54ACTS138

UT54ACS138/UT54ACTS138 Radiation-Hardened 3-Line to 8-Line Decoders/Demultiplexers FEATURES radiation-hardened CMOS - Latchup immune High speed Low power consumption www.DataSheet4U.com Single 5 volt supply Available QML Q or V processes Flexible package - 16-pin DIP - 16-lead flatpack DESCRIPTION The UT54ACS138 and the UT54ACTS138 3-line to 8-line decoders/demultiplexers are designed to be used in high-performance memory-decoding or data-routing applications requiring very short propagation delay times. The conditions at the binary select inputs and the three enable inputs select one of eight output lines. Two active-low and one active-high enable inputs reduce the need for external gates of inverters when expanding. A 24-line decoder can be implemented without external inverters and a 32-line decoder requires only one inverter. An enable input can be used as a data input for demultiplexing applications. The devices are characterized over full military temperature range of -55 C to +125 C. FUNCTION TABLE ENABLE INPUTS G1 X L X H H H H H H H H G2A X X H L L L L L L L L G2B H X X L L L L L L L L C X X X L L L L H H H H SELECT INPUTS B X X X L L H H L L H H A X X X L H L H L H L H Y0 H H H L H H H H H H H PINOUTS 16-Pin DIP Top View A B C G2A G2B G1 Y7 VSS 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VDD Y0 Y1 Y2 Y3 Y4 Y5 Y6 16-Lead Flatpack Top View A B C G2A G2B G1 Y7 VSS 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VDD Y0 Y1 Y2 Y3 Y4 Y5 Y6 OUTPUT Y1 H H H H L H H H H H ...