SN74LVC1G386DCKR is an LVC low-voltage CMOS logic chip.

Basic Introduction

SN74LVC1G386: Single 3-input XOR gate, belonging to LVC low-voltage CMOS logic chips; DCKR = SC-70-6 ultra-small SMD package.

Logic expression: Y = A ⊕ B ⊕ C, performing XOR operation on three inputs.

 Key Parameters

- Supply voltage Vcc: **1.65V ~ 5.5V** (compatible with 3.3V/5V systems for level shifting)

- Inputs: 3 standard CMOS inputs, maximum input voltage tolerance 5.5V

- Output: Push-Pull output; maximum sink current IOL = 32mA, maximum source current IOH = -32mA

- Propagation delay tpd: typically 3~5ns, max 10ns (at 3.3V, 15pF load)

- Operating temperature: **-40℃ ~ +125℃** (industrial grade)

- Maximum data rate: 100Mbps

- Feature: Ioff power-off protection. The output is disabled during power-down to prevent back current from damaging front-end devices.

Functions & Applications

1. 3-input XOR logic operation: Output goes HIGH when an odd number of inputs are HIGH; output goes LOW when an even number of inputs are HIGH.

2. Commonly used for parity check circuits (typical application for 3-bit data parity detection).

3. Simple digital logic combination, signal comparison and differential signal processing.

4. Low-voltage level compatibility for logic signal conversion between different voltage domains.

 Scope of Application

- Consumer electronics, industrial control boards, sensor modules

- Communication boards: data parity check and error detection

- Battery-powered equipment (low power consumption)

- Compact PCB designs with space constraints (SC70 ultra-small package)

> 

> Not suitable for high-current driving; used only for digital logic signal processing.