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74VHC373FT

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by adom

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

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Contents

README

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74VHC373FT

TOSHIBA · Latches · TSSOP-20

74VHC373FT from TOSHIBA, 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 Active-low output enable; when HIGH all eight Q outputs are forced to high-impedance regardless of LE or D; VIH min 0.7×VCC, VIL max 0.3×VCC.
2 Q0 tri_state 3-state latch output bit 0; VOH min 2.58 V (VCC=3.0 V, IOH=−4 mA), VOL max 0.36 V (VCC=3.0 V, IOL=4 mA); propagation delay from D max 11.4 ns at VCC=3.3 V, CL=50 pF.
3 D0 input Data input bit 0; latched on falling edge of LE; setup time min 4.0 ns, hold time min 1.0 ns at VCC=5.0 V.
4 D1 input Data input bit 1; latched on falling edge of LE; setup time min 4.0 ns, hold time min 1.0 ns at VCC=5.0 V.
5 Q1 tri_state 3-state latch output bit 1; VOH min 2.58 V (VCC=3.0 V, IOH=−4 mA), VOL max 0.36 V (VCC=3.0 V, IOL=4 mA); propagation delay from D max 11.4 ns at VCC=3.3 V, CL=50 pF.
6 Q2 tri_state 3-state latch output bit 2; VOH min 2.58 V (VCC=3.0 V, IOH=−4 mA), VOL max 0.36 V (VCC=3.0 V, IOL=4 mA); propagation delay from D max 11.4 ns at VCC=3.3 V, CL=50 pF.
7 D2 input Data input bit 2; latched on falling edge of LE; setup time min 4.0 ns, hold time min 1.0 ns at VCC=5.0 V.
8 D3 input Data input bit 3; latched on falling edge of LE; setup time min 4.0 ns, hold time min 1.0 ns at VCC=5.0 V.
9 Q3 tri_state 3-state latch output bit 3; VOH min 2.58 V (VCC=3.0 V, IOH=−4 mA), VOL max 0.36 V (VCC=3.0 V, IOL=4 mA); propagation delay from D max 11.4 ns at VCC=3.3 V, CL=50 pF.
10 GND power_in Ground supply reference, 0 V.
11 LE input Latch enable input; when HIGH Q outputs follow D inputs transparently; when LOW Q outputs hold last state; minimum pulse width 5.0 ns at VCC=3.3 V.
12 Q4 tri_state 3-state latch output bit 4; VOH min 2.58 V (VCC=3.0 V, IOH=−4 mA), VOL max 0.36 V (VCC=3.0 V, IOL=4 mA); propagation delay from D max 11.4 ns at VCC=3.3 V, CL=50 pF.
13 D4 input Data input bit 4; latched on falling edge of LE; setup time min 4.0 ns, hold time min 1.0 ns at VCC=5.0 V.
14 D5 input Data input bit 5; latched on falling edge of LE; setup time min 4.0 ns, hold time min 1.0 ns at VCC=5.0 V.
15 Q5 tri_state 3-state latch output bit 5; VOH min 2.58 V (VCC=3.0 V, IOH=−4 mA), VOL max 0.36 V (VCC=3.0 V, IOL=4 mA); propagation delay from D max 11.4 ns at VCC=3.3 V, CL=50 pF.
16 Q6 tri_state 3-state latch output bit 6; VOH min 2.58 V (VCC=3.0 V, IOH=−4 mA), VOL max 0.36 V (VCC=3.0 V, IOL=4 mA); propagation delay from D max 11.4 ns at VCC=3.3 V, CL=50 pF.
17 D6 input Data input bit 6; latched on falling edge of LE; setup time min 4.0 ns, hold time min 1.0 ns at VCC=5.0 V.
18 D7 input Data input bit 7; latched on falling edge of LE; setup time min 4.0 ns, hold time min 1.0 ns at VCC=5.0 V.
19 Q7 tri_state 3-state latch output bit 7; VOH min 2.58 V (VCC=3.0 V, IOH=−4 mA), VOL max 0.36 V (VCC=3.0 V, IOL=4 mA); propagation delay from D max 11.4 ns at VCC=3.3 V, CL=50 pF.
20 VCC power_in Positive supply voltage; operating range 2.0 V to 5.5 V, absolute maximum 7.0 V; ICC max 4.0 µA at Ta=25 °C.

Key specifications

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

CAD (KiCad official)

  • Symbol: 74VHC373FT
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: 74vhc373ft-etched.step / 74vhc373ft-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74vhc373ft.step / 74vhc373ft.glb are the bare package body.

Provenance

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

  • Datasheet: TOSHIBA datasheet (12 pp, sha256 235b55805011f86d, retrieved 2026-09-21, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-sonnet-4-6 (text+vision), consensus claude-opus-4-7 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF