UT54ACTS27

Standard Products UT54ACS27/UT54ACTS27 Triple 3-Input NOR Gates Datasheet November 2010 www.aeroflex.com/logic FEATURES ‰ 1.2μ CMOS - Latchup immune ‰ High speed ‰ Low power consumption ‰ Single 5 volt supply ‰ Available QML Q or V processes ‰ Flexible package - 14-pin DIP - 14-lead flatpack ‰ UT54ACS27 - SMD 5962-96528 ‰ UT54ACTS27 - SMD 5962-96529 DESCRIPTION The UT54ACS27 and the UT54ACTS27 are triple, three-input NOR gates. The circuits perform the Boolean functions Y = A+B+C or Y = A⋅B⋅C in positive logic. The devices are characterized over full military temperature range of -55°C to +125°C. FUNCTION TABLE INPUTS OUTPUT ABCY HXX L XHX L XXHL L L LH LOGIC SYMBOL (1) A1 (2) B1 (13) C1 (3) A2 (4) B2 (5) C2 (9) A3 (10) B3 (11) C3 ≥1 (12) Y1 (6) Y2 (8) Y3 Note: 1. Logic symbol in accordance with ANSI/IEEE standard 91-1984 and IEC Publication 617-12. PINOUTS A1 B1 A2 B2 C2 Y2 VSS 14-Pin DIP Top View A1 1 14 VDD B1 2 13 C1 A2 3 12 Y1 B2 4 11 C3 C2 5 10 B3 Y2 6 9 A3 VSS 7 8 Y3 14-Lead Flatpack Top View 1 14 2 13 3 12 4 11 5 10 69 78 VDD C1 Y1 C3 B3 A3 Y3 LOGIC DIAGRAM A1 B1 Y1 C1 A2 B2 Y2 C2 A3 B3 Y3 C3 1 OPERATIONAL ENVIRONMENT1 PARAMETER Total Dose SEU Threshold 2 SEL Threshold Neutron Fluence LIMIT 1.0E6 80 120 1.0E14 UNITS rads(Si) MeV-cm2/mg MeV-cm2/mg n/cm2 Notes: 1. Logic will not latchup during radiation exposure within the limits defined in the table. 2. Device storage elements are immune to SEU affects. ABSOLUTE MAXIMUM RATINGS SYMBOL...