Four independent 2-input exclusive-OR (XOR) gates in high-speed CMOS, SOIC-14. Each output is high only when its two inputs differ, which makes XOR the building block for parity generators and checkers, binary adders (sum bit), controllable inverters (one input as the control), and phase or frequency comparators. Tie one input high and the gate becomes an inverter for that channel. Runs 2-6 V.

Pinout

Pin	Name	Type	Function
1	1A	input	Channel 1, Input A. CMOS logic input to XOR gate 1. V_IH ≥ 3.15 V @ V_CC = 4.5 V; input leakage ±0.1 µA typ.
2	1B	input	Channel 1, Input B. CMOS logic input to XOR gate 1. V_IH ≥ 3.15 V @ V_CC = 4.5 V; input leakage ±0.1 µA typ.
3	1Y	output	Channel 1, Output Y = 1A ⊕ 1B. Push-pull CMOS output; I_OH/I_OL up to ±5.2 mA @ V_CC = 6 V.
4	2A	input	Channel 2, Input A. CMOS logic input to XOR gate 2.
5	2B	input	Channel 2, Input B. CMOS logic input to XOR gate 2.
6	2Y	output	Channel 2, Output Y = 2A ⊕ 2B. Push-pull CMOS output.
7	GND	power_in	Ground reference (0 V). Return path for supply and outputs.
8	3Y	output	Channel 3, Output Y = 3A ⊕ 3B. Push-pull CMOS output.
9	3A	input	Channel 3, Input A. CMOS logic input to XOR gate 3.
10	3B	input	Channel 3, Input B. CMOS logic input to XOR gate 3.
11	4Y	output	Channel 4, Output Y = 4A ⊕ 4B. Push-pull CMOS output.
12	4A	input	Channel 4, Input A. CMOS logic input to XOR gate 4.
13	4B	input	Channel 4, Input B. CMOS logic input to XOR gate 4.
14	VCC	power_in	Positive supply. Operating range 2 V to 6 V (absolute max 7 V). Recommend local 0.1 µF decoupling to GND.

Key specifications

Parameter	Value
Type	Quad 2-input XOR gate
Gates	4 independent
Function	Y = A XOR B (high when inputs differ)
Logic family	HC (high-speed CMOS)
Supply voltage	2-6 V
Common uses	parity, adders, phase detect
Package	SOIC-14
Body (L×W×H)	8.65 × 3.9 × 1.75 mm

Ordering variants

Same part, different packaging or reel option.

SN74HC86D (SOIC-14, tube)
SN74HC86DR (SOIC-14, tape & reel)

CAD (KiCad official)

Symbol: 74xx:74HC86
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (37 pp, sha256 ed3f0a492555eef7, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF