component

MC74VHCT245ADTG

Public Made by Adom

by adom

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

componentlogicmc74vhct245adtgfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 9d ago
viewers mc74vhct245adtg: viewers · Ray 9d ago
mc74vhct245adtg-etched.glb Publish 0.1.0 · Ray 9d ago
mc74vhct245adtg-etched.step mc74vhct245adtg: factory component page (tier=lcsc) · Ray 9d ago
mc74vhct245adtg-hero.glb mc74vhct245adtg: hero GLB from the etched model (keeps the MPN mark) · Ray 9d ago
mc74vhct245adtg-hero.overlay.json Publish 0.1.0 · Ray 9d ago
mc74vhct245adtg.glb Publish 0.1.0 · Ray 9d ago
mc74vhct245adtg.kicad_mod Publish 0.1.0 · Ray 9d ago
mc74vhct245adtg.kicad_sym Publish 0.1.0 · Ray 9d ago
mc74vhct245adtg.lbr Publish 0.1.0 · Ray 9d ago
mc74vhct245adtg.step Publish 0.1.0 · Ray 9d ago
package.json Publish 0.1.0 · Ray 9d ago
page.json Set visibility: public · Ray 9d ago
README.md Publish 0.1.0 · Ray 9d ago

MC74VHCT245ADTG

onsemi · Buffers, Drivers, Receivers, Transceivers · TSSOP-20

MC74VHCT245ADTG 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 DIR input Direction control input that sets the transfer direction when OE is low: LOW selects Bus B to Bus A and HIGH selects Bus A to Bus B.
2 A1 bidirectional Bus A data bit 1; do not force an external signal on this I/O while it is an active output, as damage may occur.
3 A2 bidirectional Bus A data bit 2; do not force an external signal on this I/O while it is an active output, as damage may occur.
4 A3 bidirectional Bus A data bit 3; do not force an external signal on this I/O while it is an active output, as damage may occur.
5 A4 bidirectional Bus A data bit 4; do not force an external signal on this I/O while it is an active output, as damage may occur.
6 A5 bidirectional Bus A data bit 5; do not force an external signal on this I/O while it is an active output, as damage may occur.
7 A6 bidirectional Bus A data bit 6; do not force an external signal on this I/O while it is an active output, as damage may occur.
8 A7 bidirectional Bus A data bit 7; do not force an external signal on this I/O while it is an active output, as damage may occur.
9 A8 bidirectional Bus A data bit 8; do not force an external signal on this I/O while it is an active output, as damage may occur.
10 GND power_in Ground reference pin for the device.
11 B8 bidirectional Bus B data bit 8; unused I/O must be left open and unused inputs tied to GND or VCC.
12 B7 bidirectional Bus B data bit 7; unused I/O must be left open and unused inputs tied to GND or VCC.
13 B6 bidirectional Bus B data bit 6; unused I/O must be left open and unused inputs tied to GND or VCC.
14 B5 bidirectional Bus B data bit 5; unused I/O must be left open and unused inputs tied to GND or VCC.
15 B4 bidirectional Bus B data bit 4; unused I/O must be left open and unused inputs tied to GND or VCC.
16 B3 bidirectional Bus B data bit 3; unused I/O must be left open and unused inputs tied to GND or VCC.
17 B2 bidirectional Bus B data bit 2; unused I/O must be left open and unused inputs tied to GND or VCC.
18 B1 bidirectional Bus B data bit 1; unused I/O must be left open and unused inputs tied to GND or VCC.
19 OE input Active-low output enable: LOW allows data transfer in the direction set by DIR, and HIGH isolates the buses in the high-impedance state.
20 VCC power_in Positive supply pin; the device is designed for a 4.5 V to 5.5 V operating range.

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
Input High-Level Voltage (TA = 25°C) VIH 2 V VCC = 4.5 to 5.5 V; TA = 25°C 3
Input High-Level Voltage (TA = -40 to 85°C) VIH 2 V VCC = 4.5 to 5.5 V; TA = -40 to 85°C 3
Input Low-Level Voltage (TA = 25°C) VIL 0.8 V VCC = 4.5 to 5.5 V; TA = 25°C 3
Input Low-Level Voltage (TA = -40 to 85°C) VIL 0.8 V VCC = 4.5 to 5.5 V; TA = -40 to 85°C 3
High-Level Output Voltage (TA = 25°C) VOH 4.4 4.5 V VCC = 4.5 V; Vin = VIH or VIL; IOH = -50 µA; TA = 25°C 3
High-Level Output Voltage (TA = -40 to 85°C) VOH 4.4 V VCC = 4.5 V; Vin = VIH or VIL; IOH = -50 µA; TA = -40 to 85°C 3
High-Level Output Voltage (TA = 25°C) VOH 3.94 V VCC = 4.5 V; Vin = VIH or VIL; IOH = -8 mA; TA = 25°C 3
High-Level Output Voltage (TA = -40 to 85°C) VOH 3.8 V VCC = 4.5 V; Vin = VIH or VIL; IOH = -8 mA; TA = -40 to 85°C 3
Low-Level Output Voltage (TA = 25°C) VOL 0 0.1 V VCC = 4.5 V; Vin = VIH or VIL; IOL = 50 µA; TA = 25°C 3
Low-Level Output Voltage (TA = -40 to 85°C) VOL 0.1 V VCC = 4.5 V; Vin = VIH or VIL; IOL = 50 µA; TA = -40 to 85°C 3
Low-Level Output Voltage (TA = 25°C) VOL 0.36 V VCC = 4.5 V; Vin = VIH or VIL; IOL = 8 mA; TA = 25°C 3
Low-Level Output Voltage (TA = -40 to 85°C) VOL 0.44 V VCC = 4.5 V; Vin = VIH or VIL; IOL = 8 mA; TA = -40 to 85°C 3
Maximum Input Leakage Current (TA = 25°C) Iin -0.1 0.1 µA VCC = 0 to 5.5 V; Vin = 5.5 V or GND; TA = 25°C 3
Maximum Input Leakage Current (TA = -40 to 85°C) Iin -1 1 µA VCC = 0 to 5.5 V; Vin = 5.5 V or GND; TA = -40 to 85°C 3
Maximum 3-State Leakage Current (TA = 25°C) IOZ -0.25 0.25 µA VCC = 5.5 V; Vin = VIL or VIH; Vout = VCC or GND; TA = 25°C 3
Maximum 3-State Leakage Current (TA = -40 to 85°C) IOZ -2.5 2.5 µA VCC = 5.5 V; Vin = VIL or VIH; Vout = VCC or GND; TA = -40 to 85°C 3
Maximum Quiescent Supply Current (TA = 25°C) ICC 4 µA VCC = 5.5 V; Vin = VCC or GND; TA = 25°C 3
Maximum Quiescent Supply Current (TA = -40 to 85°C) ICC 40 µA VCC = 5.5 V; Vin = VCC or GND; TA = -40 to 85°C 3
Quiescent Supply Current (TA = 25°C) ICCT 1.35 mA VCC = 5.5 V; per input VIN = 3.4 V; other input VCC or GND; TA = 25°C 3
Quiescent Supply Current (TA = -40 to 85°C) ICCT 1.5 mA VCC = 5.5 V; per input VIN = 3.4 V; other input VCC or GND; TA = -40 to 85°C 3
Output Leakage Current (TA = 25°C) IOPD 0.5 µA VCC = 0 V; VOUT = 5.5 V; TA = 25°C 3
Output Leakage Current (TA = -40 to 85°C) IOPD 5 µA VCC = 0 V; VOUT = 5.5 V; TA = -40 to 85°C 3
Maximum Propagation Delay A to B or B to A (CL = 15 pF) tPLH, tPHL 4.9 7.7 ns VCC = 5.0 ± 0.5 V; CL = 15 pF; TA = 25°C; input tr = tf = 3.0 ns 3
Maximum Propagation Delay A to B or B to A (CL = 15 pF) tPLH, tPHL 1 8.5 ns VCC = 5.0 ± 0.5 V; CL = 15 pF; TA = -40 to 85°C; input tr = tf = 3.0 ns 3
Maximum Propagation Delay A to B or B to A (CL = 50 pF) tPLH, tPHL 5.4 8.7 ns VCC = 5.0 ± 0.5 V; CL = 50 pF; TA = 25°C; input tr = tf = 3.0 ns 3
Maximum Propagation Delay A to B or B to A (CL = 50 pF) tPLH, tPHL 1 9.5 ns VCC = 5.0 ± 0.5 V; CL = 50 pF; TA = -40 to 85°C; input tr = tf = 3.0 ns 3
Output Enable Time OE to A or B (CL = 15 pF) tPZL, tPZH 9.4 13.8 ns VCC = 5.0 ± 0.5 V; CL = 15 pF; RL = 1k; TA = 25°C; input tr = tf = 3.0 ns 3
Output Enable Time OE to A or B (CL = 15 pF) tPZL, tPZH 1 15 ns VCC = 5.0 ± 0.5 V; CL = 15 pF; RL = 1k; TA = -40 to 85°C; input tr = tf = 3.0 ns 3
Output Enable Time OE to A or B (CL = 50 pF) tPZL, tPZH 9.9 14.8 ns VCC = 5.0 ± 0.5 V; CL = 50 pF; RL = 1k; TA = 25°C; input tr = tf = 3.0 ns 3
Output Enable Time OE to A or B (CL = 50 pF) tPZL, tPZH 1 16 ns VCC = 5.0 ± 0.5 V; CL = 50 pF; RL = 1k; TA = -40 to 85°C; input tr = tf = 3.0 ns 3
Output Disable Time OE to A or B (CL = 50 pF) tPLZ, tPHZ 10.1 15.4 ns VCC = 5.0 ± 0.5 V; CL = 50 pF; RL = 1k; TA = 25°C; input tr = tf = 3.0 ns 3
Output Disable Time OE to A or B (CL = 50 pF) tPLZ, tPHZ 1 16.5 ns VCC = 5.0 ± 0.5 V; CL = 50 pF; RL = 1k; TA = -40 to 85°C; input tr = tf = 3.0 ns 3
Output to Output Skew (CL = 50 pF) tOSLH, tOSHL 1 ns VCC = 5.0 ± 0.5 V; CL = 50 pF; TA = 25°C; parameter guaranteed by design (Note 1) 3
Maximum Input Capacitance (TA = 25°C) Cin 4 10 pF 3
Maximum Input Capacitance (TA = -40 to 85°C) Cin 10 pF TA = -40 to 85°C 3
Maximum 3-State Output Capacitance (Output in High-Impedance State) (TA = 25°C) Cout 13 pF Output in high-impedance state; TA = 25°C 3
Quiet Output Maximum Dynamic VOL VOLP 1.2 1.6 V Input tr = tf = 3.0 ns; CL = 50 pF; VCC = 5.0 V; TA = 25°C 3
Quiet Output Minimum Dynamic VOL VOLV -1.2 -1.6 V Input tr = tf = 3.0 ns; CL = 50 pF; VCC = 5.0 V; TA = 25°C 3
Minimum High-Level Dynamic Input Voltage VIHD 2 V Input tr = tf = 3.0 ns; CL = 50 pF; VCC = 5.0 V; TA = 25°C 3
Maximum Low-Level Dynamic Input Voltage VILD 0.8 V Input tr = tf = 3.0 ns; CL = 50 pF; VCC = 5.0 V; TA = 25°C 3
DC Supply Voltage VCC -0.5 7 V 2
DC Input Voltage Vin -0.5 7 V 2
DC Output Voltage VI/O -0.5 7 V Outputs in 3-State 2
DC Output Voltage VI/O -0.5 V High or Low State; upper limit printed as VCC + 0.5 V 2
Input Diode Current IIK -20 mA 2
Output Diode Current IOK -20 20 mA VOUT < GND; VOUT > VCC 2
DC Output Current, per Pin Iout -25 25 mA 2
DC Supply Current, VCC and GND Pins ICC -75 75 mA 2
Power Dissipation in Still Air, TSSOP Package PD 450 mW Still air; TSSOP package 2
Storage Temperature Tstg -65 150 °C 2
DC Supply Voltage VCC 4.5 5.5 V 2
DC Input Voltage Vin 0 5.5 V 2
DC Output Voltage VI/O 0 5.5 V Outputs in 3-State 2
DC Output Voltage VI/O 0 V High or Low State; upper limit printed as VCC 2
Operating Temperature TA -40 85 °C 2
Input Rise and Fall Time tr, tf 0 20 ns/V VCC = 5.0 V ± 0.5 V 2

CAD (KiCad official)

  • Symbol: MC74VHCT245ADTG
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: mc74vhct245adtg-etched.step / mc74vhct245adtg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc74vhct245adtg.step / mc74vhct245adtg.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (8 pp, sha256 3eb7e3f4b2442130, retrieved 2026-10-20, tier: lcsc)
  • 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