M74HCT27

M74HCT27 TRIPLE 3-INPUT NOR GATE s HIGH SPEED: tPD = 12 ns (TYP.) at VCC = 4.5V LOW POWER DISSIPATION: ICC = 1µA(MAX.) at TA=25°C COMPATIBLE WITH TTL OUTPUTS : VIH = 2V (MIN.) VIL = 0.8V (MAX) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN) PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 27 ORDER CODES PACKAGE DIP SOP TSSOP TUBE M74HCT27B1R M74HCT27M1R T&R M74HCT27RM13TR M74HCT27TTR DIP SOP TSSOP s s s s s DESCRIPTION The M74HCT27 is an high speed CMOS TRIPLE 3-INPUT NOR GATE fabricated with silicon gate C2MOS technology. The internal circuit is composed of 3 stages including buffer output, which enables high noise immunity and stable output. The M74HCT27 is designed to directly interface HSC2MOS systems with TTL and NMOS components. All inputs are equipped with protection circuits against static discharge and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS August 2001 1/8 M74HCT27 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1, 3, 9 2, 4, 10 13, 5, 11 12, 6, 8 7 14 SYMBOL 1A to 3A 1B to 3B 1C to 3C 1Y to 3Y GND VCC NAME AND FUNCTION Data Inputs Data Inputs Data Inputs Data Outputs Ground (0V) Positive Supply Voltage TRUTH TABLE A L H X X X : Don’t Care B L X H X C L X X H Y H L L L ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IIK IOK IO Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Current Parameter Value -0.5 to +7 -0.5 to VCC + 0....