74VHCT27A Datasheet PDF | STMicroelectronics

STMicroelectronics 74VHCT27A

The 74VHCT27A is an advanced high-speed CMOS TRIPLE 3-INPUT NOR GATE fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. The internal circuit is composed of 3 stages including buffer output, which provides high noise immunity and stable output. This device can be used to interface 5V to 3V.

Part No.	74VHCT27A
Datasheet	74VHCT27A Download
Manufacturer	STMicroelectronics
Description	TRIPLE 3-INPUT NOR GATE
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DESCRIPTION

Power down protection is provided on all inputs and outputs and 0 to 7V can be accepted on inputs with no regard to the supply voltage. This device can be used to interface 5V to 3V. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS February 2000 1/7 74VHCT27A INPUT 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 FUNCT ION Data Inputs Data Inputs Data Inputs Data Outputs Ground (0V) Positive Supply Voltage TRUTH TABLE A L H X X X:”H” or ”L” B L X H X C L X X H Y H L L L

ABSOLUTE MAXIMUM RATINGS

Symbol VCC VI VO VO IIK IOK IO Tstg TL Supply Voltage DC Input Voltage DC Output Voltage (see note 1) DC Output Voltage (see note 2) DC Input Diode Current DC Output Diode Current DC Output Current Storage Temperature Lead Temperature (10 sec) Parameter Value...