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Contents

README

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74VHCT08AMTCX

onsemi · Logic Gates · TSSOP-14

74VHCT08AMTCX from onsemi, in a TSSOP-14. 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 A0 input Gate 0 input A; unused inputs must be held HIGH or LOW, and inputs tolerate 0V to 7V regardless of supply voltage.
2 B0 input Gate 0 input B; unused inputs must be held HIGH or LOW, and inputs tolerate 0V to 7V regardless of supply voltage.
3 O0 output Gate 0 output, the AND of A0 and B0, with IOUT rated at ±25mA absolute maximum.
4 A1 input Gate 1 input A; unused inputs must be held HIGH or LOW, and inputs tolerate 0V to 7V regardless of supply voltage.
5 B1 input Gate 1 input B; unused inputs must be held HIGH or LOW, and inputs tolerate 0V to 7V regardless of supply voltage.
6 O1 output Gate 1 output, the AND of A1 and B1, with IOUT rated at ±25mA absolute maximum.
7 GND power_in Ground pin (0V reference) for the device.
8 O3 output Gate 3 output, the AND of A3 and B3, with IOUT rated at ±25mA absolute maximum.
9 B3 input Gate 3 input B; unused inputs must be held HIGH or LOW, and inputs tolerate 0V to 7V regardless of supply voltage.
10 A3 input Gate 3 input A; unused inputs must be held HIGH or LOW, and inputs tolerate 0V to 7V regardless of supply voltage.
11 O2 output Gate 2 output, the AND of A2 and B2, with IOUT rated at ±25mA absolute maximum.
12 B2 input Gate 2 input B; unused inputs must be held HIGH or LOW, and inputs tolerate 0V to 7V regardless of supply voltage.
13 A2 input Gate 2 input A; unused inputs must be held HIGH or LOW, and inputs tolerate 0V to 7V regardless of supply voltage.
14 VCC power_in Supply voltage, recommended 4.5V to 5.5V (absolute maximum -0.5V to +7.0V).

Key specifications

Parameter Value
Manufacturer onsemi
Package TSSOP-14
Category Logic
Pins 14

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
DC Supply Voltage (absolute maximum) VCC -0.5 7 V 4
DC Input Voltage (absolute maximum) VIN -0.5 7 V 4
DC Output Voltage (absolute maximum) VOUT -0.5 V HIGH or LOW state, IOUT absolute maximum rating must be observed; upper limit printed as VCC + 0.5V 4
DC Output Voltage (absolute maximum) VOUT -0.5 7 V VCC = 0V 4
Input Diode Current (absolute maximum) IIK -20 mA 4
Output Diode Current (absolute maximum) IOK -20 20 mA VOUT < GND, VOUT > VCC (Outputs Active) 4
DC Output Current (absolute maximum) IOUT -25 25 mA 4
DC VCC/GND Current (absolute maximum) ICC -50 50 mA 4
Storage Temperature (absolute maximum) TSTG -65 150 °C 4
Lead Temperature (absolute maximum) TL 260 °C Soldering, 10 seconds 4
Supply Voltage (recommended) VCC 4.5 5.5 V 4
Input Voltage (recommended) VIN 0 5.5 V 4
Output Voltage (recommended) VOUT 0 V HIGH or LOW state, IOUT absolute maximum rating must be observed; upper limit printed as VCC 4
Output Voltage (recommended) VOUT 0 5.5 V VCC = 0V 4
Operating Temperature TOPR -40 85 °C 4
Input Rise and Fall Time tr, tf 0 20 ns/V VCC = 5.0V ± 0.5V 4
HIGH Level Input Voltage VIH 2 V VCC = 4.5 V, TA = 25°C 5
LOW Level Input Voltage VIL 0.8 V VCC = 4.5 V, TA = 25°C 5
HIGH Level Output Voltage VOH 4.4 4.5 V VCC = 4.5 V, VIN = VIH or VIL, IOH = -50µA, TA = 25°C 5
HIGH Level Output Voltage VOH 4.4 V VCC = 4.5 V, VIN = VIH or VIL, IOH = -50µA, TA = -40°C to +85°C 5
HIGH Level Output Voltage VOH 3.94 V VCC = 4.5 V, VIN = VIH or VIL, IOH = -8mA, TA = 25°C 5
HIGH Level Output Voltage VOH 3.8 V VCC = 4.5 V, VIN = VIH or VIL, IOH = -8mA, TA = -40°C to +85°C 5
LOW Level Output Voltage VOL 0 0.1 V VCC = 4.5 V, VIN = VIH or VIL, IOL = 50µA, TA = 25°C 5
LOW Level Output Voltage VOL 0.1 V VCC = 4.5 V, VIN = VIH or VIL, IOL = 50µA, TA = -40°C to +85°C 5
LOW Level Output Voltage VOL 0.36 V VCC = 4.5 V, VIN = VIH or VIL, IOL = 8mA, TA = 25°C 5
LOW Level Output Voltage VOL 0.44 V VCC = 4.5 V, VIN = VIH or VIL, IOL = 8mA, TA = -40°C to +85°C 5
Input Leakage Current IIN -0.1 0.1 µA VCC = 0-5.5 V, VIN = 5.5V or GND, TA = 25°C 5
Input Leakage Current IIN -1 1 µA VCC = 0-5.5 V, VIN = 5.5V or GND, TA = -40°C to +85°C 5
Quiescent Supply Current ICC 2 µA VCC = 5.5 V, VIN = VCC or GND, TA = 25°C 5
Quiescent Supply Current ICC 20 µA VCC = 5.5 V, VIN = VCC or GND, TA = -40°C to +85°C 5
Maximum ICC / Input ICCT 1.35 mA VCC = 5.5 V, VIN = 3.4V, other inputs = VCC or GND, TA = 25°C 5
Maximum ICC / Input ICCT 1.5 mA VCC = 5.5 V, VIN = 3.4V, other inputs = VCC or GND, TA = -40°C to +85°C 5
Output Leakage Current (Power Down State) IOFF 0.5 µA VCC = 0.0 V, VOUT = 5.5V, TA = 25°C 5
Output Leakage Current (Power Down State) IOFF 5 µA VCC = 0.0 V, VOUT = 5.5V, TA = -40°C to +85°C 5
Quiet Output Maximum Dynamic VOL VOLP 0.4 0.8 V VCC = 5.0 V, CL = 50pF, TA = 25°C 5
Quiet Output Minimum Dynamic VOL VOLV -0.8 -0.4 V VCC = 5.0 V, CL = 50pF, TA = 25°C 5
Minimum HIGH Level Dynamic Input Voltage VIHD 2 V VCC = 5.0 V, CL = 50pF, TA = 25°C 5
Maximum LOW Level Dynamic Input Voltage VILD 0.8 V VCC = 5.0 V, CL = 50pF, TA = 25°C 5
Propagation Delay tPLH, tPHL 5 6.9 ns VCC = 5.0 ± 0.5 V, CL = 15pF, TA = 25°C 6
Propagation Delay tPLH, tPHL 1 8 ns VCC = 5.0 ± 0.5 V, CL = 15pF, TA = -40°C to +85°C 6
Propagation Delay tPLH, tPHL 5.5 7.9 ns VCC = 5.0 ± 0.5 V, CL = 50pF, TA = 25°C 6
Propagation Delay tPLH, tPHL 1 9 ns VCC = 5.0 ± 0.5 V, CL = 50pF, TA = -40°C to +85°C 6
Input Capacitance CIN 4 10 pF VCC = Open, TA = 25°C 6
Input Capacitance CIN 10 pF VCC = Open, TA = -40°C to +85°C 6

CAD (KiCad official)

  • Symbol: 74VHCT08AMTCX
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: 74vhct08amtcx-etched.step / 74vhct08amtcx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74vhct08amtcx.step / 74vhct08amtcx.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (9 pp, sha256 fc68a0dfffc273f2, retrieved 2026-10-18, tier: lcsc)
  • 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