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74LVC273AT20-13

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

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74LVC273AT20-13

Diodes Incorporated · Flip Flops · TSSOP-20

74LVC273AT20-13 from Diodes Incorporated, in a TSSOP-20. 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 direct clear input; per the function table, CLR low forces every Q output low regardless of CLK and D.
2 Q1 output Latch output of flip-flop 1, which can sink or source 24 mA at VCC = 3 V.
3 D1 input Data input to flip-flop 1, sampled on the positive edge of CLK; inputs accept up to 5.5 V and have Schmitt trigger action.
4 D2 input Data input to flip-flop 2, sampled on the positive edge of CLK; inputs accept up to 5.5 V and have Schmitt trigger action.
5 Q2 output Latch output of flip-flop 2, which can sink or source 24 mA at VCC = 3 V.
6 Q3 output Latch output of flip-flop 3, which can sink or source 24 mA at VCC = 3 V.
7 D3 input Data input to flip-flop 3, sampled on the positive edge of CLK; inputs accept up to 5.5 V and have Schmitt trigger action.
8 D4 input Data input to flip-flop 4, sampled on the positive edge of CLK; inputs accept up to 5.5 V and have Schmitt trigger action.
9 Q4 output Latch output of flip-flop 4, which can sink or source 24 mA at VCC = 3 V.
10 GND power_in Ground reference for the device.
11 CLK input Clock input; flip-flops are positive-edge triggered, and inputs accept up to 5.5 V with Schmitt trigger action.
12 Q5 output Latch output of flip-flop 5, which can sink or source 24 mA at VCC = 3 V.
13 D5 input Data input to flip-flop 5, sampled on the positive edge of CLK; inputs accept up to 5.5 V and have Schmitt trigger action.
14 D6 input Data input to flip-flop 6, sampled on the positive edge of CLK; inputs accept up to 5.5 V and have Schmitt trigger action.
15 Q6 output Latch output of flip-flop 6, which can sink or source 24 mA at VCC = 3 V.
16 Q7 output Latch output of flip-flop 7, which can sink or source 24 mA at VCC = 3 V.
17 D7 input Data input to flip-flop 7, sampled on the positive edge of CLK; inputs accept up to 5.5 V and have Schmitt trigger action.
18 D8 input Data input to flip-flop 8, sampled on the positive edge of CLK; inputs accept up to 5.5 V and have Schmitt trigger action.
19 Q8 output Latch output of flip-flop 8, which can sink or source 24 mA at VCC = 3 V.
20 VCC power_in Supply voltage, operating range 1.65 V to 3.6 V per the recommended operating conditions.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package TSSOP-20
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
High-Level Input Voltage VIH 1.7 V VCC 2.3V to 2.7V; TA = -40°C to +85°C 4
High-Level Input Voltage VIH 2 V VCC 3.0V to 3.6V; TA = -40°C to +85°C 4
Low-Level Input Voltage VIL 0.7 V VCC 2.3V to 2.7V; TA = -40°C to +85°C 4
Low-Level Input Voltage VIL 0.8 V VCC 3.0V to 3.6V; TA = -40°C to +85°C 4
High-Level Output Voltage VOH 1.2 V IOH = -4mA; VCC 1.65V; TA = -40°C to +85°C 4
High-Level Output Voltage VOH 1.05 V IOH = -4mA; VCC 1.65V; TA = +85°C to +125°C 4
High-Level Output Voltage VOH 1.7 V IOH = -8mA; VCC 2.3V; TA = -40°C to +85°C 4
High-Level Output Voltage VOH 1.65 V IOH = -8mA; VCC 2.3V; TA = +85°C to +125°C 4
High-Level Output Voltage VOH 2.2 V IOH = -12mA; VCC 2.7V; TA = -40°C to +85°C 4
High-Level Output Voltage VOH 2.05 V IOH = -12mA; VCC 2.7V; TA = +85°C to +125°C 4
High-Level Output Voltage VOH 2.4 V IOH = -12mA; VCC 3.0V; TA = -40°C to +85°C 4
High-Level Output Voltage VOH 2.48 V IOH = -12mA; VCC 3.0V; TA = +85°C to +125°C 4
High-Level Output Voltage VOH 2.3 V IOH = -24mA; VCC 3.0V; TA = -40°C to +85°C 4
High-Level Output Voltage VOH 2 V IOH = -24mA; VCC 3.0V; TA = +85°C to +125°C 4
Low-Level Output Voltage VOL 0.2 V IOL = 100μA; VCC 1.65V to 3.6V; TA = -40°C to +85°C 4
Low-Level Output Voltage VOL 0.3 V IOL = 100μA; VCC 1.65V to 3.6V; TA = +85°C to +125°C 4
Low-Level Output Voltage VOL 0.45 V IOL = 4mA; VCC 1.65V; TA = -40°C to +85°C 4
Low-Level Output Voltage VOL 0.65 V IOL = 4mA; VCC 1.65V; TA = +85°C to +125°C 4
Low-Level Output Voltage VOL 0.6 V IOL = 8mA; VCC 2.3V; TA = -40°C to +85°C 4
Low-Level Output Voltage VOL 0.8 V IOL = 8mA; VCC 2.3V; TA = +85°C to +125°C 4
Low-Level Output Voltage VOL 0.4 V IOL = 12mA; VCC 2.7V; TA = -40°C to +85°C 4
Low-Level Output Voltage VOL 0.55 V IOL = 24mA; VCC 3.0V; TA = -40°C to +85°C 4
Power Down Leakage Current IOFF -10 10 μA VI or VO = 0 or 5.5V; VCC 0V; TA = -40°C to +85°C 4
Power Down Leakage Current IOFF 20 μA VI or VO = 0 or 5.5V; VCC 0V; TA = +85°C to +125°C 4
Input Current II -5 5 μA Control Pins VI = GND or 5.5V; VCC 0 to 3.6V; TA = -40°C to +85°C 4
Input Current II -20 20 μA Control Pins VI = GND or 5.5V; VCC 0 to 3.6V; TA = +85°C to +125°C 4
Supply Current ICC 10 μA VI = GND or VCC, IO = 0; VCC 6.0V; TA = -40°C to +85°C 4
Supply Current ICC 40 μA VI = GND or VCC, IO = 0; VCC 6.0V; TA = +85°C to +125°C 4
Additional Supply Current ΔICC 500 μA One input at Vcc-0.6V; Io = 0A; VCC 2.7V to 3.6V; TA = -40°C to +85°C 4
Additional Supply Current ΔICC 5000 μA One input at Vcc-0.6V; Io = 0A; VCC 2.7V to 3.6V; TA = +85°C to +125°C 4
Supply Voltage (operating) VCC 1.65 3.6 V Operating 3
Supply Voltage (data retention) VCC 1.5 V Data Retention Only 3
Input Voltage VI 0 5.5 V 3
Input Transition Rise or Fall Rate ∆t/∆V 10 ns/V 3
Operating Free-Air Temperature TA -40 125 °C 3
High-Level Output Current IOH -4 mA VCC = 1.65V 3
High-Level Output Current IOH -8 mA VCC = 2.3V 3
High-Level Output Current IOH -12 mA VCC = 2.7V 3
High-Level Output Current IOH -24 mA VCC = 3.0V 3
Low-Level Output Current IOL 4 mA VCC = 1.65V 3
Low-Level Output Current IOL 8 mA VCC = 2.3V 3
Low-Level Output Current IOL 12 mA VCC = 2.7V 3
Low-Level Output Current IOL 24 mA VCC = 3.0V 3
Supply Voltage Range VCC -0.5 7 V 3
Input Voltage Range VI -0.5 7 V 3
Input Clamp Current IIK -20 mA VI < 0V 3
Output Clamp Current IOK -50 mA VO < 0V 3
Continuous output current IO -50 50 mA -0.5V < VO Vcc +0.5V 3
Continuous Current Through Vcc ICC 100 mA 3
Continuous Current Through GND IGND -100 mA 3
Operating Junction Temperature TJ -40 150 °C 3
Total Power Dissipation PTOT 500 mW 3
Thermal Resistance Junction-to-Ambient θJA 74 °C/W TSSOP-20 (Note 9) 5
Thermal Resistance Junction-to-Case θJC 15 °C/W TSSOP-20 (Note 9) 5

CAD (KiCad official)

  • Symbol: 74LVC273AT20-13
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: 74lvc273at20-13-etched.step / 74lvc273at20-13-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74lvc273at20-13.step / 74lvc273at20-13.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (10 pp, sha256 d139b8b2b7a1f6b9, retrieved 2026-10-21, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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