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74LCX125YTTR

STMicroelectronics · Buffers, Drivers, Receivers, Transceivers · TSSOP-14

74LCX125YTTR from STMicroelectronics, 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 1G input Output enable input for gate 1; setting G high places output 1Y in the high impedance state.
2 1A input Data input for gate 1, 5 V tolerant per the device features.
3 1Y tri_state Data output for gate 1, 3-state, with symmetrical output drive of
4 2G input Output enable input for gate 2; setting G high places output 2Y in the high impedance state.
5 2A input Data input for gate 2, 5 V tolerant per the device features.
6 2Y tri_state Data output for gate 2, 3-state, with symmetrical output drive of
7 GND power_in Ground (0 V) reference pin.
8 3Y tri_state Data output for gate 3, 3-state, with symmetrical output drive of
9 3A input Data input for gate 3, 5 V tolerant per the device features.
10 3G input Output enable input for gate 3; setting G high places output 3Y in the high impedance state.
11 4Y tri_state Data output for gate 4, 3-state, with symmetrical output drive of
12 4A input Data input for gate 4, 5 V tolerant per the device features.
13 4G input Output enable input for gate 4; setting G high places output 4Y in the high impedance state.
14 VCC power_in Positive supply voltage, with recommended operating range of 2.0 V to 3.6 V.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
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
Supply voltage VCC -0.5 7 V 5
DC input voltage VI -0.5 7 V 5
DC output voltage (VCC = 0 V) VO -0.5 7 V VCC = 0 V 5
DC output voltage (high or low state), max printed as VCC + 0.5 V VO -0.5 V high or low state 5
DC input diode current IIK -50 mA 5
DC output diode current IOK -50 mA VO < GND 5
DC output current IO -50 50 mA 5
DC supply current per supply pin ICC -100 100 mA 5
DC ground current per supply pin IGND -100 100 mA 5
Storage temperature Tstg -65 150 °C 5
Lead temperature TL 300 °C 10 s 5
Supply voltage VCC 2 3.6 V 5
Input voltage VI 0 5.5 V 5
Output voltage (VCC = 0 V) VO 0 5.5 V VCC = 0 V 5
Output voltage (high or low state), max printed as VCC VO 0 V high or low state 5
High or low level output current IOH, IOL -24 24 mA VCC = 3.0 to 3.6 V 5
High or low level output current IOH, IOL -12 12 mA VCC = 2.7 V 5
Input rise and fall time dt/dv 0 10 ns/V VIN from 0.8 V to 2 V at VCC = 3.0 V 5
High level input voltage VIH 2 V VCC 2.7 to 3.6 V; -40 to 85 °C 6
Low level input voltage VIL 0.8 V VCC 2.7 to 3.6 V; -40 to 85 °C 6
High level output voltage VOH 2.2 V VCC 2.7 V; IO = -12 mA; -40 to 85 °C 6
High level output voltage VOH 2.4 V VCC 3.0 V; IO = -18 mA; -40 to 85 °C 6
Low level output voltage VOL 0.2 V VCC 2.7 to 3.6 V; IO = 100 µA; -40 to 85 °C 6
Low level output voltage VOL 0.4 V VCC 2.7 V; IO = 12 mA; -40 to 85 °C 6
Low level output voltage VOL 0.55 V VCC 3.0 V; IO = 24 mA; -40 to 85 °C 6
Input leakage current II -5 5 µA VCC 2.7 to 3.6 V; VI = 0 to 5.5 V; -40 to 85 °C 6
Power OFF leakage current Ioff 10 µA VI or VO = 5.5 V; -40 to 85 °C 6
High impedance output leakage current IOZ -5 5 µA VCC 2.7 to 3.6 V; VI = VIH or VIL; VO = 0 to VCC; -40 to 85 °C 6
Quiescent supply current ICC 10 µA VCC 2.7 to 3.6 V; VI = VCC or GND; -40 to 85 °C 6
Quiescent supply current ICC -10 10 µA VCC 2.7 to 3.6 V; VI or VO = 3.6 to 5.5 V; -40 to 85 °C 6
Additional quiescent supply current per input ΔICC 500 µA VCC 2.7 to 3.6 V; VIH = VCC - 0.6 V; -40 to 85 °C 6
Dynamic low level quiet output VOLP 0.8 V VCC 3.3 V; CL = 50 pF; VIL = 0 V, VIH = 3.3 V; TA = 25 °C 6
Dynamic low level quiet output VOLV -0.8 V VCC 3.3 V; CL = 50 pF; VIL = 0 V, VIH = 3.3 V; TA = 25 °C 6
Propagation delay time tPLH, tPHL 6 ns VCC 2.7 V; CL 50 pF; RL 500 Ω; ts = tr 2.5 ns; -40 to 85 °C 7
Propagation delay time tPLH, tPHL 5.2 ns VCC 3.0 to 3.6 V; CL 50 pF; RL 500 Ω; ts = tr 1.0 ns; -40 to 85 °C 7
Output enable time to HIGH and LOW level tPZL, tPZH 6 ns VCC 2.7 V; CL 50 pF; RL 500 Ω; ts = tr 2.5 ns; -40 to 85 °C 7
Output enable time to HIGH and LOW level tPZL, tPZH 5 ns VCC 3.0 to 3.6 V; CL 50 pF; RL 500 Ω; ts = tr 1.0 ns; -40 to 85 °C 7
Output disable time to HIGH and LOW level tPLZ, tPHZ 6 ns VCC 2.7 V; CL 50 pF; RL 500 Ω; ts = tr 2.5 ns; -40 to 85 °C 7
Output disable time to HIGH and LOW level tPLZ, tPHZ 5 ns VCC 3.0 to 3.6 V; CL 50 pF; RL 500 Ω; ts = tr 1.0 ns; -40 to 85 °C 7
Output to output skew time tOSLH, tOSHL 1 ns VCC 3.0 to 3.6 V; CL 50 pF; RL 500 Ω; ts = tr 2.5 ns; -40 to 85 °C 7

CAD (KiCad official)

  • Symbol: 74LCX125YTTR
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: 74lcx125yttr-etched.step / 74lcx125yttr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); 74lcx125yttr.step / 74lcx125yttr.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (16 pp, sha256 9a54e677025d61c0, retrieved 2026-11-05, 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