1/11

December 2004

s

s

LOW POWER DISSIPATION:

s

COMPATIBLE WITH TTL OUTPUTS:

s

POWER DOWN PROTECTION ON INPUTS

& OUTPUTS

s

SYMMETRICAL OUTPUT IMPEDANCE:

s

BALANCED PROPAGATION DELAYS:

s

OPERATING VOLTAGE RANGE:

s

PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 32

s

IMPROVED LATCH-UP IMMUNITY

s

DESCRIPTION

The 74VHCT32A is an advanced high-speed

CMOS QUAD 2-INPUT OR GATE fabricated with

sub-micron silicon gate and double-layer metal

The internal circuit is composed of 3 stages

including buffer output, which provides high noise

immunity and stable output.

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 since all

inputs are equipped with TTL threshold.

All

inputs

and

outputs

are

equipped

with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

74VHCT32A

QUAD 2-INPUT OR GATE

Figure 1: Pin Connection And IEC Logic Symbols

Table 1: Order Codes

PACKAGE

T & R

SOP

74VHCT32AMTR

TSSOP

74VHCT32ATTR

TSSOP

SOP

Rev. 4