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74VHC573MTC

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onsemi Latches, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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74VHC573MTC

onsemi · Latches · TSSOP-20

74VHC573MTC from onsemi, 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 OE input Active-low 3-STATE output enable input; HIGH puts the eight outputs in high impedance, LOW enables them, and it does not interfere with entering new data into the latches.
2 D0 input Data input 0; enters the latch when LE is HIGH.
3 D1 input Data input 1; enters the latch when LE is HIGH.
4 D2 input Data input 2; enters the latch when LE is HIGH.
5 D3 input Data input 3; enters the latch when LE is HIGH.
6 D4 input Data input 4; enters the latch when LE is HIGH.
7 D5 input Data input 5; enters the latch when LE is HIGH.
8 D6 input Data input 6; enters the latch when LE is HIGH.
9 D7 input Data input 7; enters the latch when LE is HIGH.
10 GND power_in Ground, 0V reference.
11 LE input Latch enable input; latches are transparent when HIGH and store the D inputs when LOW.
12 O7 tri_state 3-STATE output 7, high impedance when OE is HIGH.
13 O6 tri_state 3-STATE output 6, high impedance when OE is HIGH.
14 O5 tri_state 3-STATE output 5, high impedance when OE is HIGH.
15 O4 tri_state 3-STATE output 4, high impedance when OE is HIGH.
16 O3 tri_state 3-STATE output 3, high impedance when OE is HIGH.
17 O2 tri_state 3-STATE output 2, high impedance when OE is HIGH.
18 O1 tri_state 3-STATE output 1, high impedance when OE is HIGH.
19 O0 tri_state 3-STATE output 0, high impedance when OE is HIGH.
20 VCC power_in Supply voltage, recommended 2.0V to 5.5V (absolute maximum -0.5V to +7.0V).

Key specifications

Parameter Value
Manufacturer onsemi
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
Supply Voltage VCC 2 5.5 V 4
Input Voltage VIN 0 5.5 V 4
Output Voltage VOUT 0 V 4
Operating Temperature TOPR -40 85 °C 4
Input Rise and Fall Time tr, tf 0 100 ns/V VCC = 3.3V ±0.3V 4
Input Rise and Fall Time tr, tf 0 20 ns/V VCC = 5.0V ±0.5V 4
Supply Voltage VCC -0.5 7 V 4
Input Voltage VIN -0.5 7 V 4
Output Voltage VOUT -0.5 V 4
Input Diode Current IIK -20 mA 4
Output Diode Current IOK -20 20 mA 4
DC Output Current IOUT -25 25 mA 4
DC VCC/GND Current ICC -75 75 mA 4
Storage Temperature TSTG -65 150 °C 4
Lead Temperature (Soldering) TL 260 °C 10 seconds 4
HIGH Level Input Voltage VIH 1.5 V VCC = 2.0V; TA = 25°C and -40°C to +85°C 5
LOW Level Input Voltage VIL 0.5 V VCC = 2.0V; TA = 25°C and -40°C to +85°C 5
HIGH Level Output Voltage VOH 1.9 2 V VCC = 2.0V; VIN = VIH or VIL; IOH = -50µA; TA = 25°C and -40°C to +85°C 5
HIGH Level Output Voltage VOH 2.9 3 V VCC = 3.0V; VIN = VIH or VIL; IOH = -50µA; TA = 25°C and -40°C to +85°C 5
HIGH Level Output Voltage VOH 4.4 4.5 V VCC = 4.5V; VIN = VIH or VIL; IOH = -50µA; TA = 25°C and -40°C to +85°C 5
HIGH Level Output Voltage VOH 2.58 V VCC = 3.0V; VIN = VIH or VIL; IOH = -4mA; TA = 25°C 5
HIGH Level Output Voltage VOH 2.48 V VCC = 3.0V; VIN = VIH or VIL; IOH = -4mA; TA = -40°C to +85°C 5
HIGH Level Output Voltage VOH 3.94 V VCC = 4.5V; VIN = VIH or VIL; IOH = -8mA; TA = 25°C 5
HIGH Level Output Voltage VOH 3.8 V VCC = 4.5V; VIN = VIH or VIL; IOH = -8mA; TA = -40°C to +85°C 5
LOW Level Output Voltage VOL 0 0.1 V VCC = 2.0V; VIN = VIH or VIL; IOL = 50µA; TA = 25°C and -40°C to +85°C 5
LOW Level Output Voltage VOL 0.36 V VCC = 3.0V; VIN = VIH or VIL; IOL = 4mA; TA = 25°C 5
LOW Level Output Voltage VOL 0.44 V VCC = 3.0V; VIN = VIH or VIL; IOL = 4mA; TA = -40°C to +85°C 5
3-STATE Output Off-State Current IOZ -2.5 2.5 µA VCC = 5.5V; VIN = VIH or VIL; VOUT = VCC or GND; TA = -40°C to +85°C 5
Input Leakage Current IIN -1 1 µA VCC = 0-5.5V; VIN = 5.5V or GND; TA = -40°C to +85°C 5
Quiescent Supply Current ICC 4 40 µA VCC = 5.5V; VIN = VCC or GND; max at TA = -40°C to +85°C 5
Quiet Output Maximum Dynamic VOL VOLP 0.9 1.2 V VCC = 5.0V; CL = 50pF; TA = 25°C 5
Quiet Output Minimum Dynamic VOL VOLV -1 -0.8 V VCC = 5.0V; CL = 50pF; TA = 25°C 5
Minimum HIGH Level Dynamic Input Voltage VIHD 3.5 V VCC = 5.0V; CL = 50pF; TA = 25°C 5
Maximum LOW Level Dynamic Input Voltage VILD 1.5 V VCC = 5.0V; CL = 50pF; TA = 25°C 5
Propagation Delay Time (LE to On) tPLH, tPHL 1 7.6 14 ns VCC = 3.3±0.3V; CL = 15pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
Propagation Delay Time (LE to On) tPLH, tPHL 1 10.1 17.5 ns VCC = 3.3±0.3V; CL = 50pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
Propagation Delay Time (LE to On) tPLH, tPHL 1 5 9 ns VCC = 5.0±0.5V; CL = 15pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
Propagation Delay Time (LE to On) tPLH, tPHL 1 6.5 11 ns VCC = 5.0±0.5V; CL = 50pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
Propagation Delay Time (D to On) tPLH, tPHL 1 7 13 ns VCC = 3.3±0.3V; CL = 15pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
Propagation Delay Time (D to On) tPLH, tPHL 1 9.5 16.5 ns VCC = 3.3±0.3V; CL = 50pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
Propagation Delay Time (D to On) tPLH, tPHL 1 4.5 8 ns VCC = 5.0±0.5V; CL = 15pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
Propagation Delay Time (D to On) tPLH, tPHL 1 6 10 ns VCC = 5.0±0.5V; CL = 50pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
3-STATE Output Enable Time tPZL, tPZH 1 7.3 13.5 ns VCC = 3.3±0.3V; RL = 1kΩ; CL = 15pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
3-STATE Output Enable Time tPZL, tPZH 1 9.8 17 ns VCC = 3.3±0.3V; RL = 1kΩ; CL = 50pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
3-STATE Output Enable Time tPZL, tPZH 1 5.2 9 ns VCC = 5.0±0.5V; RL = 1kΩ; CL = 15pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
3-STATE Output Enable Time tPZL, tPZH 1 6.7 11 ns VCC = 5.0±0.5V; RL = 1kΩ; CL = 50pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
3-STATE Output Disable Time tPLZ, tPHZ 1 10.7 16.5 ns VCC = 3.3±0.3V; RL = 1kΩ; CL = 50pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
3-STATE Output Disable Time tPLZ, tPHZ 1 6.7 11 ns VCC = 5.0±0.5V; CL = 50pF; typ at TA = 25°C; min/max at TA = -40°C to +85°C 6
Output to Output Skew tOSLH, tOSHL 1.5 ns VCC = 3.3±0.3V; CL = 50pF 6
Output to Output Skew tOSLH, tOSHL 1 ns VCC = 5.0±0.5V; CL = 50pF 6
Minimum Pulse Width (LE) tw(H), tw(L) 5 ns VCC = 3.3±0.3V 6
Minimum Setup Time tS 3.5 ns VCC = 3.3±0.3V 6
Minimum Hold Time tH 1.5 ns VCC = 3.3±0.3V 6

CAD (KiCad official)

  • Symbol: 74VHC573MTC
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: 74vhc573mtc-etched.step / 74vhc573mtc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74vhc573mtc.step / 74vhc573mtc.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (11 pp, sha256 da4914f3e5d32036, 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