component

74LCX273FT

Public Made by Adom

by adom

TOSHIBA Flip Flops, TSSOP-20-175mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentlogic74lcx273ftfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
74lcx273ft / README.md
History Download
Ray Publish 0.1.0 4f383c0 5d ago

74LCX273FT

TOSHIBA · Flip Flops · TSSOP-20-175mil

74LCX273FT from TOSHIBA, in a TSSOP-20-175mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 CLR input Active-low asynchronous clear input; when low, all eight outputs go to a low logic level.
2 Q1 output Flip-flop 1 data output, 5-V tolerant, rated
3 D1 input Data input for flip-flop 1, 5-V tolerant.
4 D2 input Data input for flip-flop 2, 5-V tolerant.
5 Q2 output Flip-flop 2 data output, 5-V tolerant, rated
6 Q3 output Flip-flop 3 data output, 5-V tolerant, rated
7 D3 input Data input for flip-flop 3, 5-V tolerant.
8 D4 input Data input for flip-flop 4, 5-V tolerant.
9 Q4 output Flip-flop 4 data output, 5-V tolerant, rated
10 GND power_in Ground (0 V) reference.
11 CK input Clock input shared by all eight flip-flops.
12 Q5 output Flip-flop 5 data output, 5-V tolerant, rated
13 D5 input Data input for flip-flop 5, 5-V tolerant.
14 D6 input Data input for flip-flop 6, 5-V tolerant.
15 Q6 output Flip-flop 6 data output, 5-V tolerant, rated
16 Q7 output Flip-flop 7 data output, 5-V tolerant, rated
17 D7 input Data input for flip-flop 7, 5-V tolerant.
18 D8 input Data input for flip-flop 8, 5-V tolerant.
19 Q8 output Flip-flop 8 data output, 5-V tolerant, rated
20 VCC power_in Supply voltage, operating range 1.65 to 3.6 V.

Key specifications

Parameter Value
Manufacturer TOSHIBA
Package TSSOP-20-175mil
Category Logic
Pins 20

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage (absolute maximum) VCC -0.5 6.5 V 4
Input voltage (absolute maximum) VIN -0.5 6.5 V 4
Output voltage (absolute maximum) VOUT -0.5 6.5 V 4
Input diode current (absolute maximum) IIK -50 mA 4
Output diode current (absolute maximum) IOK -50 50 mA 4
Output current (absolute maximum) IOUT -50 50 mA 4
Power dissipation (absolute maximum) PD 180 mW Ta = -40 to 85 °C; derate -3.25 mW/°C from 85 to 125 °C down to 50 mW 4
VCC/ground current (absolute maximum) ICC/IGND -100 100 mA 4
Storage temperature (absolute maximum) Tstg -65 150 °C 4
Supply voltage (operating) VCC 1.65 3.6 V 4
Input voltage (operating) VIN 0 5.5 V 4
Output voltage (operating) VOUT 0 V Maximum printed as VCC 4
Output current (operating) IOH,IOL -24 24 mA VCC = 3.0 to 3.6 V 4
Output current (operating) IOH,IOL -12 12 mA VCC = 2.7 to 3.0 V 4
Operating temperature Topr -40 125 °C 4
Input rise and fall time dt/dv 0 10 ns/V VIN = 0.8 to 2.0 V, VCC = 3.0 V 4
High-level input voltage VIH 1.7 V VCC = 2.3 to 2.7 V; Ta = -40 to 85 °C 5
High-level input voltage VIH 2 V VCC = 2.7 to 3.6 V; Ta = -40 to 85 °C 5
Low-level input voltage VIL 0.7 V VCC = 2.3 to 2.7 V; Ta = -40 to 85 °C 5
Low-level input voltage VIL 0.8 V VCC = 2.7 to 3.6 V; Ta = -40 to 85 °C 5
High-level output voltage VOH 1.05 V IOH = -4 mA; VCC = 1.65 V; Ta = -40 to 85 °C 5
High-level output voltage VOH 1.7 V IOH = -8 mA; VCC = 2.3 V; Ta = -40 to 85 °C 5
High-level output voltage VOH 2.2 V IOH = -12 mA; VCC = 2.7 V; Ta = -40 to 85 °C 5
High-level output voltage VOH 2.4 V IOH = -18 mA; VCC = 3.0 V; Ta = -40 to 85 °C 5
Low-level output voltage VOL 0.2 V IOL = 100 µA; VCC = 1.65 to 3.6 V; Ta = -40 to 85 °C 5
Low-level output voltage VOL 0.45 V IOL = 4 mA; VCC = 1.65 V; Ta = -40 to 85 °C 5
Low-level output voltage VOL 0.7 V IOL = 8 mA; VCC = 2.3 V; Ta = -40 to 85 °C 5
Low-level output voltage VOL 0.4 V IOL = 12 mA; VCC = 2.7 V; Ta = -40 to 85 °C 5
Low-level output voltage VOL 0.55 V IOL = 24 mA; VCC = 3.0 V; Ta = -40 to 85 °C 5
Input leakage current IIN -5 5 µA VIN = 0 to 5.5 V; Ta = -40 to 85 °C 5
Power-OFF leakage current IOFF 10 µA VIN/VOUT = 5.5 V; Ta = -40 to 85 °C 5
Quiescent supply current ICC 10 µA VIN = VCC or GND; Ta = -40 to 85 °C 5
Quiescent supply current ICC -10 10 µA VIN = 3.6 to 5.5 V; Ta = -40 to 85 °C 5
Quiescent supply current change per input ΔICC 500 µA VIH = VCC - 0.6 V (per 1 input); Ta = -40 to 85 °C 5
High-level input voltage VIH 1.7 V VCC = 2.3 to 2.7 V; Ta = -40 to 125 °C 6
High-level input voltage VIH 2 V VCC = 2.7 to 3.6 V; Ta = -40 to 125 °C 6
Low-level input voltage VIL 0.7 V VCC = 2.3 to 2.7 V; Ta = -40 to 125 °C 6
Low-level input voltage VIL 0.8 V VCC = 2.7 to 3.6 V; Ta = -40 to 125 °C 6
High-level output voltage VOH 0.9 V IOH = -4 mA; VCC = 1.65 V; Ta = -40 to 125 °C 6
High-level output voltage VOH 1.55 V IOH = -8 mA; VCC = 2.3 V; Ta = -40 to 125 °C 6
High-level output voltage VOH 2 V IOH = -12 mA; VCC = 2.7 V; Ta = -40 to 125 °C 6
High-level output voltage VOH 2.2 V IOH = -18 mA; VCC = 3.0 V; Ta = -40 to 125 °C 6
Low-level output voltage VOL 0.2 V IOL = 100 µA; VCC = 1.65 to 3.6 V; Ta = -40 to 125 °C 6
Low-level output voltage VOL 0.65 V IOL = 4 mA; VCC = 1.65 V; Ta = -40 to 125 °C 6
Low-level output voltage VOL 0.9 V IOL = 8 mA; VCC = 2.3 V; Ta = -40 to 125 °C 6
Low-level output voltage VOL 0.6 V IOL = 12 mA; VCC = 2.7 V; Ta = -40 to 125 °C 6
Low-level output voltage VOL 0.75 V IOL = 24 mA; VCC = 3.0 V; Ta = -40 to 125 °C 6
Input leakage current IIN -20 20 µA VIN = 0 to 5.5 V; Ta = -40 to 125 °C 6
Power-OFF leakage current IOFF 40 µA VIN/VOUT = 5.5 V; Ta = -40 to 125 °C 6
Quiescent supply current ICC 40 µA VIN = VCC or GND; Ta = -40 to 125 °C 6
Quiescent supply current ICC -40 40 µA VIN = 3.6 to 5.5 V; Ta = -40 to 125 °C 6
Quiescent supply current change per input ΔICC 5 mA VIH = VCC - 0.6 V (per 1 input); Ta = -40 to 125 °C 6

CAD (KiCad official)

  • Symbol: 74LCX273FT
  • Footprint: Adom_Gen:TOSHIBA_74
  • 3D model: TSSOP-20-175mil (KiCad packages3D, STEP)
  • 3D model files: 74lcx273ft-etched.step / 74lcx273ft-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74lcx273ft.step / 74lcx273ft.glb are the bare package body.

Provenance

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

  • Datasheet: TOSHIBA datasheet (12 pp, sha256 2ff7560763581cf1, retrieved 2026-10-18, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-5-5 (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