A

B

Y

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9

SN54HC32, SN74HC32

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SCLS200E – DECEMBER 1982 – REVISED JULY 2016

Product Folder Links: SN54HC32 SN74HC32

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Copyright © 1982–2016, Texas Instruments Incorporated

8 Detailed Description

8.1 Overview

The SNx4HC32 devices are quad 2-input OR gates. These devices are members of the High-Speed CMOS (HC)

logic family. The HC family of logic is optimized to operate with a 5-V supply, is low noise without characteristic

overshoot and undershoot, has low power consumption, small propagation delay, balanced propagation delay

and transition times, and operates over a wide temperature range.

8.2 Functional Block Diagram

Figure 5. Logic Diagram (Positive Logic)

8.3 Feature Description

8.3.1 Operating Voltage Range

The SNx4HC series of devices offer a wide operating voltage range from 2 V to 6 V.

8.3.2 LSTTL Loads

The outputs of the SNx4HC series can drive up to 10 LSTTL loads.

8.3.3 Low Power Consumption

The SNx4HC32 offers low power consumption of 20 μA (maximum).

8.3.4 Output Drive Capability

At 5 V, the outputs have ±4 mA of output drive capability.

8.3.5 Low Input Current Leakage

Inputs have low input current leakage of 1 μA (maximum).

8.4 Device Functional Modes

Table 1 lists the functional modes of SNx4HC32.

Table 1. Function Table

(Each Gate)

INPUTS

OUTPUT

A

B

Y

H

X

H

X

H

H

L

L

L