The 74HC32 is a highspeed CMOS logic IC featuring four independent 2input OR gates. The OR gate produces a HIGH output when one or both inputs are HIGH, and a LOW output only when all inputs are LOW. This fundamental logic function is essential for signal routing, decision-making circuits, enable/disable control, and boolean logic operations in digital systems.
| Parameter | Value |
|---|---|
| Supply Voltage (VCC) | 2.0V to 6.0V |
| Input Voltage | 0V to VCC |
| Output Current (High/Low) | ±5.2mA (at 6V) |
| Propagation Delay | 8ns typical at 5V |
| Quiescent Current | 2µA typical (at 6V) |
| Operating Temperature | -40°C to +125°C |
| Package Types | DIP14, SOIC14, TSSOP-14 |
| Number of Gates | 4 (2-input each) |
= Pin Configuration (DIP14/SOIC14/TSSOP-14) =
| Pin | Name | Function |
|---|---|---|
| 1 | 1A | Gate 1 Input A |
| 2 | 1B | Gate 1 Input B |
| 3 | 1Y | Gate 1 Output |
| 4 | 2A | Gate 2 Input A |
| 5 | 2B | Gate 2 Input B |
| 6 | 2Y | Gate 2 Output |
| 7 | GND | Ground (0V) |
| 8 | 3Y | Gate 3 Output |
| 9 | 3A | Gate 3 Input A |
| 10 | 3B | Gate 3 Input B |
| 11 | 4Y | Gate 4 Output |
| 12 | 4A | Gate 4 Input A |
| 13 | 4B | Gate 4 Input B |
| 14 | VCC | Supply Voltage (2V to 6V) |
= Truth Table (Per Gate) =
| Input A | Input B | Output Y |
|---|---|---|
| LOW | LOW | LOW |
| LOW | HIGH | HIGH |
| HIGH | LOW | HIGH |
| HIGH | HIGH | HIGH |
> OR gate output is HIGH if ANY input is HIGH - only LOW when ALL inputs are LOW
Four Independent OR Gates Provides multiple OR functions in a single 14pin package
Wide Supply Range - Operates from 2V to 6V for flexible system integration
Low Power Consumption 2µA quiescent current ideal for battery-powered designs
High Noise Immunity - VIH/VIL specifications ensure reliable operation
Compatible Inputs - Accepts both CMOS and TTL drive levels
Schmitt Trigger Action - Clean switching even with slow input edges
√ Industry-standard 74HC32 pinout for easy replacement
√ Low power consumption - 2µA typical quiescent current
√ Fully tested and guaranteed functional