component

MM74HC373MTCX

Public Unreviewed

by Ray

onsemi Latches, TSSOP-20. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Datasheet

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Contents

README

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MM74HC373MTCX

onsemi · Latches · TSSOP-20

MM74HC373MTCX from onsemi, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 OE input Output Enable (active LOW). When HIGH, all Q outputs are placed in the high-impedance state.
2 1Q tri_state Latch 1 Q output (3-state). Follows 1D when LE is HIGH; holds last value when LE is LOW.
3 1D input Latch 1 D input.
4 2D input Latch 2 D input.
5 2Q tri_state Latch 2 Q output (3-state).
6 3Q tri_state Latch 3 Q output (3-state).
7 3D input Latch 3 D input.
8 4D input Latch 4 D input.
9 4Q tri_state Latch 4 Q output (3-state).
10 GND power_in Ground reference (0 V).
11 LE input Latch Enable. When HIGH, Q outputs follow D inputs (transparent). When LOW, Q outputs are latched.
12 5Q tri_state Latch 5 Q output (3-state).
13 5D input Latch 5 D input.
14 6D input Latch 6 D input.
15 6Q tri_state Latch 6 Q output (3-state).
16 7Q tri_state Latch 7 Q output (3-state).
17 7D input Latch 7 D input.
18 8D input Latch 8 D input.
19 8Q tri_state Latch 8 Q output (3-state).
20 VCC power_in Positive supply voltage. Operating range 2 V to 6 V.

Key specifications

Parameter Value
Manufacturer onsemi
Package TSSOP-20
Category Logic
Pins 20

Ordering variants

Same part, different packaging or reel option.

  • MM74HC373MTCX
  • MM74HC373MTCXM
  • MM74HC373MTCXMX
  • MM74HC373MTCXN

CAD (KiCad official)

  • Symbol: MM74HC373MTCX
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: onsemi datasheet (10 pp, sha256 304befb6d4582287, retrieved 2026-08-17, tier: lcsc)
  • 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