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MC74AC125DTR2G

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onsemi Buffers / Drivers, TSSOP-14. Pinout settled in review by an AI reviewer against the manufacturer's datasheet, KiCad symbol/footprint/3D.

componentlogic icsmc74ac125dtr2gfactory-2.0.0extractor-text

Changed since verified MC74AC125DTR2G

by Ray · last 6 Nov 2026 · 1 record · files changed since
SymbolFootprint3D modelPins

Verification log 1 record

6 Nov 2026RayPublished by the parts factory: tier mfr, 14 pinschanged since
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: MC74AC125DTR2G · TSSOP-14 · 14 pins
  • ✓copper: 14 copper pads, none touching another net
  • ✓datasheet: all 14 pin names found in the 9-page datasheet
  • ✓distributor: lcsc C8138, digikey MC74AC125DTR2GOSTR-ND, mouser 863-MC74AC125DTR2G
  • ✓family: TSSOP-14_4.4x5mm_P0.65mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-vaidydr4/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.7)
  • ✓pads: 14 pins = 14 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 14 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files! mc74ac125dtr2g.kicad_sym✓ mc74ac125dtr2g.kicad_mod✓ mc74ac125dtr2g.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 3h ago
viewers mc74ac125dtr2g: viewers after the pinout correction · Ray 2h ago
mc74ac125dtr2g-etched.glb Publish 0.1.0 · Ray 3h ago
mc74ac125dtr2g-etched.step mc74ac125dtr2g: factory component page (tier=mfr) · Ray 3h ago
mc74ac125dtr2g-hero.glb Publish 0.1.1 · Ray 2h ago
mc74ac125dtr2g-hero.overlay.json Publish 0.1.1 · Ray 2h ago
mc74ac125dtr2g.glb Publish 0.1.0 · Ray 3h ago
mc74ac125dtr2g.kicad_mod Publish 0.1.0 · Ray 3h ago
mc74ac125dtr2g.kicad_sym Publish 0.1.1 · Ray 2h ago
mc74ac125dtr2g.lbr Publish 0.1.1 · Ray 2h ago
mc74ac125dtr2g.step Publish 0.1.0 · Ray 3h ago
package.json Publish 0.1.1 · Ray 2h ago
page.json mc74ac125dtr2g 0.1.1: pinout corrected (4 pins) · Ray 2h ago
README.md Publish 0.1.1 · Ray 2h ago
verification.json Verified: Published by the parts factory: tier mfr, 14 pins · Ray 3h ago

MC74AC125DTR2G

onsemi · Buffers / Drivers · TSSOP-14

MC74AC125DTR2G 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 Output enable for this buffer, active low: high puts the output in the high-impedance state.
2 B0 input Data input of buffer 0 that drives O0 when A0 is low, with input voltage limited to 0 to VCC.
3 O0 tri_state 3-state output of buffer 0 that follows B0 when A0 is low and is high impedance when A0 is high, rated for 24 mA source/sink (IOH -24 mA, IOL 24 mA).
4 ~{A1} input Output enable for this buffer, active low: high puts the output in the high-impedance state.
5 B1 input Data input of buffer 1 that drives O1 when A1 is low, with input voltage limited to 0 to VCC.
6 O1 tri_state 3-state output of buffer 1 that follows B1 when A1 is low and is high impedance when A1 is high, rated for 24 mA source/sink (IOH -24 mA, IOL 24 mA).
7 GND power_in Ground pin, reference for the 0 to VCC input and output voltage range, with a maximum DC ground current of 50 mA per output pin.
8 O3 tri_state 3-state output of buffer 3 that follows B3 when A3 is low and is high impedance when A3 is high, rated for 24 mA source/sink (IOH -24 mA, IOL 24 mA).
9 B3 input Data input of buffer 3 that drives O3 when A3 is low, with input voltage limited to 0 to VCC.
10 ~{A3} input Output enable for this buffer, active low: high puts the output in the high-impedance state.
11 O2 tri_state 3-state output of buffer 2 that follows B2 when A2 is low and is high impedance when A2 is high, rated for 24 mA source/sink (IOH -24 mA, IOL 24 mA).
12 B2 input Data input of buffer 2 that drives O2 when A2 is low, with input voltage limited to 0 to VCC.
13 ~{A2} input Output enable for this buffer, active low: high puts the output in the high-impedance state.
14 VCC power_in Positive supply pin, recommended 2.0 to 6.0 V for the 'AC device (absolute maximum -0.5 to 7.0 V), with a maximum DC supply current of 50 mA per output pin.

Key specifications

Parameter Value
Manufacturer onsemi
Package TSSOP-14
Category Logic ICs
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 2
DC Input Voltage (Absolute Maximum) VI -0.5 V Upper limit printed as VCC + 0.5 V 2
DC Output Voltage (Absolute Maximum) VO -0.5 V Upper limit printed as VCC + 0.5 V; Note 1 2
DC Input Diode Current IIK 20 mA 2
DC Output Diode Current IOK 50 mA 2
DC Output Sink/Source Current IO 50 mA 2
DC Supply Current per Output Pin ICC 50 mA 2
DC Ground Current per Output Pin IGND 50 mA 2
Storage Temperature Range TSTG -65 150 °C 2
Lead Temperature TL 260 °C 1 mm from case for 10 seconds 2
Junction Temperature under Bias TJ 150 °C Under bias 2
Latch-Up Performance 100 mA Above VCC and below GND at 85°C 2
ESD Withstand Voltage (Human Body Model) VESD 2000 V Human Body Model; printed as > 2000 2
ESD Withstand Voltage (Machine Model) VESD 200 V Machine Model; printed as > 200 2
ESD Withstand Voltage (Charged Device Model) VESD 1000 V Charged Device Model; printed as > 1000 2
Thermal Resistance Junction-to-Ambient (TSSOP) θJA 170 °C/W TSSOP; per JESD51-7 2
Power Dissipation in Still Air at 85°C (TSSOP) PD 170 mW Still air at 85°C; TSSOP 2
Supply Voltage 74AC VCC 2 5 6 V 74AC (AC devices) 2
DC Input/Output Voltage Vin, Vout 0 V Ref. to GND; upper limit printed as VCC 2
Junction Temperature (PDIP) TJ 140 °C PDIP as printed 2
Operating Ambient Temperature Range TA -40 25 85 °C 2
Output Current HIGH IOH -24 mA 2
Output Current LOW IOL 24 mA 2
Minimum High Level Input Voltage (74AC) VIH 2.1 1.5 V VCC 3.0 V; VOUT = 0.1 V or VCC - 0.1 V; TA -40 to +85°C 3
Minimum High Level Input Voltage (74AC) VIH 3.15 2.25 V VCC 4.5 V; VOUT = 0.1 V or VCC - 0.1 V; TA -40 to +85°C 3
Minimum High Level Input Voltage (74AC) VIH 3.85 2.75 V VCC 5.5 V; VOUT = 0.1 V or VCC - 0.1 V; TA -40 to +85°C 3
Maximum Low Level Input Voltage (74AC) VIL 1.5 0.9 V VCC 3.0 V; VOUT = 0.1 V or VCC - 0.1 V; TA -40 to +85°C 3
Maximum Low Level Input Voltage (74AC) VIL 2.25 1.35 V VCC 4.5 V; VOUT = 0.1 V or VCC - 0.1 V; TA -40 to +85°C 3
Maximum Low Level Input Voltage (74AC) VIL 2.75 1.65 V VCC 5.5 V; VOUT = 0.1 V or VCC - 0.1 V; TA -40 to +85°C 3
Minimum High Level Output Voltage (74AC) VOH 2.9 2.99 V VCC 3.0 V; IOUT = -50 µA; TA -40 to +85°C 3
Minimum High Level Output Voltage (74AC) VOH 4.4 4.46 V VCC 4.5 V; IOUT = -50 µA; TA -40 to +85°C 3
Minimum High Level Output Voltage (74AC) VOH 5.4 5.49 V VCC 5.5 V; IOUT = -50 µA; TA -40 to +85°C 3
Minimum High Level Output Voltage at IOH (74AC) VOH 2.46 V VCC 3.0 V; IOH = -12 mA; TA -40 to +85°C 3
Minimum High Level Output Voltage at IOH (74AC) VOH 3.76 V VCC 4.5 V; IOH = -24 mA; TA -40 to +85°C 3
Minimum High Level Output Voltage at IOH (74AC) VOH 4.76 V VCC 5.5 V; IOH = -24 mA; TA -40 to +85°C 3
Maximum Low Level Output Voltage (74AC) VOL 0.002 0.1 V VCC 3.0 V; IOUT = 50 µA; TA -40 to +85°C 3
Maximum Low Level Output Voltage (74AC) VOL 0.001 0.1 V VCC 4.5 V; IOUT = 50 µA; TA -40 to +85°C 3
Maximum Low Level Output Voltage at IOL (74AC) VOL 0.44 V VCC 3.0 V; IOL = 12 mA; TA -40 to +85°C 3
Maximum Input Leakage Current (74AC) IIN -1 1 µA VI = VCC, GND; VCC 5.5 V; TA -40 to +85°C 3
Output Leakage Current (74AC) IOZ -5 5 µA VI(OE) = VIL, VIH; VI = VCC, GND; VO = VCC, GND; VCC 5.5 V; TA -40 to +85°C 3
Minimum Dynamic Output Current LOW (74AC) IOLD 75 mA VCC 5.5 V; VOLD = 1.65 V Max 3
Minimum Dynamic Output Current HIGH (74AC) IOHD -75 mA VCC 5.5 V; VOHD = 3.85 V Min 3
Maximum Quiescent Supply Current (74AC) ICC 80 µA VCC 5.5 V; VIN = VCC or GND; TA -40 to +85°C 3
Propagation Delay Data to Output tPLH (74AC) tPLH 1 10 ns VCC 3.3 V; CL = 50 pF; TA -40 to +85°C 3
Propagation Delay Data to Output tPLH (74AC) tPLH 1 7.5 ns VCC 5.0 V; CL = 50 pF; TA -40 to +85°C 3
Propagation Delay Data to Output tPHL (74AC) tPHL 1 10 ns VCC 3.3 V; CL = 50 pF; TA -40 to +85°C 3
Propagation Delay Data to Output tPHL (74AC) tPHL 1 7.5 ns VCC 5.0 V; CL = 50 pF; TA -40 to +85°C 3
Output Enable Time tPZH (74AC) tPZH 1 11 ns VCC 3.3 V; CL = 50 pF; TA -40 to +85°C 3
Output Enable Time tPZH (74AC) tPZH 1 8 ns VCC 5.0 V; CL = 50 pF; TA -40 to +85°C 3
Output Enable Time tPZL (74AC) tPZL 1 11 ns VCC 3.3 V; CL = 50 pF; TA -40 to +85°C 3
Output Enable Time tPZL (74AC) tPZL 1 8.5 ns VCC 5.0 V; CL = 50 pF; TA -40 to +85°C 3
Output Disable Time tPHZ (74AC) tPHZ 1 10.5 ns VCC 3.3 V; CL = 50 pF; TA -40 to +85°C 3
Output Disable Time tPHZ (74AC) tPHZ 1 9.5 ns VCC 5.0 V; CL = 50 pF; TA -40 to +85°C 3
Output Disable Time tPLZ (74AC) tPLZ 1 11.5 ns VCC 3.3 V; CL = 50 pF; TA -40 to +85°C 3
Output Disable Time tPLZ (74AC) tPLZ 1 9.5 ns VCC 5.0 V; CL = 50 pF; TA -40 to +85°C 3

CAD (KiCad official)

  • Symbol: MC74AC125DTR2G
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: mc74ac125dtr2g-etched.step / mc74ac125dtr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); mc74ac125dtr2g.step / mc74ac125dtr2g.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (9 pp, sha256 b462e140c780f6c7, retrieved 2026-11-06, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF