component

MC74LCX245DTR2G

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.

componentlogicmc74lcx245dtr2gfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
mc74lcx245dtr2g / README.md
History Download
Ray Publish 0.1.0 9851f80 6d ago

MC74LCX245DTR2G

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

MC74LCX245DTR2G 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 T/R input Transmit/Receive input sets data direction: HIGH enables data from A ports to B ports, LOW enables data from B to A ports.
2 A0 bidirectional Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port.
3 A1 bidirectional Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port.
4 A2 bidirectional Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port.
5 A3 bidirectional Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port.
6 A4 bidirectional Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port.
7 A5 bidirectional Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port.
8 A6 bidirectional Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port.
9 A7 bidirectional Side A 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the A port.
10 GND power_in Ground reference pin for the device.
11 B7 bidirectional Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port.
12 B6 bidirectional Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port.
13 B5 bidirectional Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port.
14 B4 bidirectional Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port.
15 B3 bidirectional Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port.
16 B2 bidirectional Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port.
17 B1 bidirectional Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port.
18 B0 bidirectional Side B 3-state input or 3-state output; the device supports 24 mA balanced output sink and source at the B port.
19 OE input Output Enable input; when HIGH it disables both A and B ports by placing them in a high-impedance (Z) state.
20 VCC power_in Supply voltage pin, specified for 2.0 V to 5.5 V operation.

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 Operating VCC 2 5.5 V 3
Supply Voltage Data Retention Only VCC 1.5 5.5 V Data retention only 3
Input Voltage VI 0 5.5 V 3
Output Voltage (HIGH or LOW State) VO 0 V HIGH or LOW State (max printed as VCC) 3
Output Voltage (3-State) VO 0 5.5 V 3-State 3
HIGH Level Output Current IOH -24 mA VCC = 3.0 V to 3.6 V 3
HIGH Level Output Current IOH -12 mA VCC = 2.7 V to 3.0 V 3
HIGH Level Output Current IOH -8 mA VCC = 2.3 V to 2.7 V 3
LOW Level Output Current IOL 24 mA VCC = 3.0 V to 3.6 V 3
LOW Level Output Current IOL 12 mA VCC = 2.7 V to 3.0 V 3
LOW Level Output Current IOL 8 mA VCC = 2.3 V to 2.7 V 3
Operating Free-Air Temperature TA -55 125 °C 3
Input Transition Rise or Fall Rate t/V 0 10 ns/V VIN from 0.8 V to 2.0 V, VCC = 3.0 V 3
DC Supply Voltage VCC -0.5 7 V 3
DC Input Voltage VI -0.5 7 V 3
DC Output Voltage VO -0.5 7 V Output in 3-State 3
DC Output Voltage VO -0.5 V Output in HIGH or LOW State (max printed as VCC + 0.5) 3
DC Input Diode Current IIK -50 mA VI < GND 3
DC Output Diode Current IOK -50 mA VO < GND 3
DC Output Diode Current IOK 50 mA VO > VCC 3
DC Output Source/Sink Current IO -50 50 mA 3
DC Supply Current Per Supply Pin ICC -100 100 mA Per supply pin 3
DC Ground Current Per Ground Pin IGND -100 100 mA Per ground pin 3
Storage Temperature Range TSTG -65 150 °C 3
HIGH Level Input Voltage VIH 1.7 V 2.3 V ≤ VCC ≤ 2.7 V; TA = −55°C to +125°C 4
HIGH Level Input Voltage VIH 2 V 2.7 V ≤ VCC ≤ 3.6 V; TA = −55°C to +125°C 4
LOW Level Input Voltage VIL 0.7 V 2.3 V ≤ VCC ≤ 2.7 V; TA = −55°C to +125°C 4
LOW Level Input Voltage VIL 0.8 V 2.7 V ≤ VCC ≤ 3.6 V; TA = −55°C to +125°C 4
HIGH Level Output Voltage VOH 1.8 V VCC = 2.3 V; IOH = −8 mA 4
HIGH Level Output Voltage VOH 2.2 V VCC = 2.7 V; IOH = −12 mA 4
HIGH Level Output Voltage VOH 2.4 V VCC = 3.0 V; IOH = −18 mA 4
LOW Level Output Voltage VOL 0.2 V 2.3 V ≤ VCC ≤ 3.6 V; IOL = 100 µA 4
LOW Level Output Voltage VOL 0.6 V VCC = 2.3 V; IOL = 8 mA 4
LOW Level Output Voltage VOL 0.4 V VCC = 2.7 V; IOL = 12 mA 4
LOW Level Output Voltage VOL 0.55 V VCC = 3.0 V; IOL = 24 mA 4
3-State Output Current IOZ -5 5 µA VCC = 3.6 V, VIN = VIH or VIL, VOUT = 0 to 5.5 V 4
Power Off Leakage Current IOFF 10 µA VCC = 0, VIN = 5.5 V or VOUT = 5.5 V 4
Input Leakage Current IIN -5 5 µA VCC = 3.6 V, VIN = 5.5 V or GND 4
Quiescent Supply Current ICC 10 µA VCC = 3.6 V, VIN = 5.5 V or GND 4
Increase in ICC per Input ICC 500 µA 2.3 V ≤ VCC ≤ 3.6 V; VIH = VCC − 0.6 V 4
Propagation Delay Input to Output tPLH, tPHL 1.5 7 ns VCC = 3.3 V ± 0.3 V; CL = 50 pF; TA = −55°C to +125°C; tR = tF = 2.5 ns; RL = 500 Ω 4
Propagation Delay Input to Output tPLH, tPHL 1.5 8 ns VCC = 2.7 V; CL = 50 pF; TA = −55°C to +125°C; tR = tF = 2.5 ns; RL = 500 Ω 4
Propagation Delay Input to Output tPLH, tPHL 1.5 8.4 ns VCC = 2.5 V ± 0.2 V; CL = 30 pF; TA = −55°C to +125°C; tR = tF = 2.5 ns; RL = 500 Ω 4
Propagation Delay Input to Output tPLH, tPHL 1.5 5 ns VCC = 5.0 V; CL = 50 pF; TA = −55°C to +125°C; tR = tF = 2.5 ns; RL = 500 Ω 4
Output Enable Time to High and Low Level tPZH, tPZL 1.5 8.5 ns VCC = 3.3 V ± 0.3 V; CL = 50 pF; TA = −55°C to +125°C; tR = tF = 2.5 ns; RL = 500 Ω 4
Output Enable Time to High and Low Level tPZH, tPZL 1.5 9.5 ns VCC = 2.7 V; CL = 50 pF; TA = −55°C to +125°C; tR = tF = 2.5 ns; RL = 500 Ω 4
Output Enable Time to High and Low Level tPZH, tPZL 1.5 10.5 ns VCC = 2.5 V ± 0.2 V; CL = 30 pF; TA = −55°C to +125°C; tR = tF = 2.5 ns; RL = 500 Ω 4
Output Enable Time to High and Low Level tPZH, tPZL 1.5 7 ns VCC = 5.0 V; CL = 50 pF; TA = −55°C to +125°C; tR = tF = 2.5 ns; RL = 500 Ω 4
Output Disable Time From High and Low Level tPHZ, tPLZ 1.5 7.5 ns VCC = 3.3 V ± 0.3 V; CL = 50 pF; TA = −55°C to +125°C; tR = tF = 2.5 ns; RL = 500 Ω 4
Output Disable Time From High and Low Level tPHZ, tPLZ 1.5 8.5 ns VCC = 2.7 V; CL = 50 pF; TA = −55°C to +125°C; tR = tF = 2.5 ns; RL = 500 Ω 4
Output Disable Time From High and Low Level tPHZ, tPLZ 1.5 9 ns VCC = 2.5 V ± 0.2 V; CL = 30 pF; TA = −55°C to +125°C; tR = tF = 2.5 ns; RL = 500 Ω 4
Output Disable Time From High and Low Level tPHZ, tPLZ 1.5 6 ns VCC = 5.0 V; CL = 50 pF; TA = −55°C to +125°C; tR = tF = 2.5 ns; RL = 500 Ω 4
Output-to-Output Skew tOSHL, tOSLH 1 ns VCC = 3.3 V ± 0.3 V; CL = 50 pF; TA = −55°C to +125°C 4

CAD (KiCad official)

  • Symbol: MC74LCX245DTR2G
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: mc74lcx245dtr2g-etched.step / mc74lcx245dtr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc74lcx245dtr2g.step / mc74lcx245dtr2g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (9 pp, sha256 99a0e56372c0f5a7, retrieved 2026-10-18, 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