UT54ACS244

UT54ACS244/UT54ACTS244 Radiation-Hardened Octal Buffers & Line Drivers, Three-State Outputs FEATURES Three-state outputs drive bus lines or buffer memory address registers radiation-hardened CMOS - Latchup immune High speed www.DataSheet4U.com Low power consumption Single 5 volt supply Available QML Q or V processes Flexible package - 20-pin DIP - 20-lead flatpack DESCRIPTION The UT54ACS244 and the UT54ACTS244 are non-inverting octal buffer and line drivers which improve the performance and density of three-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The devices are characterized over full military temperature range of -55 C to +125 C. FUNCTION TABLE INPUTS 1G, 2G L L H A L H X OUTPUT Y L H Z PINOUTS 20-Pin DIP Top View 1G 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 VSS 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VDD 2G 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 20-Lead Flatpack Top View 1G 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 VSS 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VDD 2G 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 LOGIC SYMBOL 1G 1A1 (1) (2) EN (18) (16) (14) (12) 1Y1 1Y2 1Y3 1Y4 (4) 1A2 (6) 1A3 (8) 1A4 (19) (11) 2G 2A1 EN (9) (7) (5) (3) 2Y1 2Y2 2Y3 2Y4 Note: 1. Logic symbol in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. (13) 2A2 (15) 2A3 (17) 2A4 159 RadHard MSI Logic UT54ACS244/UT54ACTS244 LOGIC DIAGRAM 1G (1) 2G (19) 1A1 (2) (18) 1Y1 2A1 (11) (9) 2Y1 1A2 (4) (16) 1Y2 2A2 (13) (7) 2Y2 www.Data...