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AT074L-CuH-S

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AOTE Logic Output Optoisolators, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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AT074L-CuH-S

AOTE · Logic Output Optoisolators · SOP-8

AT074L-CuH-S from AOTE, in a SOP-8. 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 Anode 1 passive LED anode for optocoupler channel 1; recommended ON input current IF is 12-18 mA and absolute maximum forward input current is 20 mA.
2 Cathode 1 passive LED cathode for optocoupler channel 1 on the input side.
3 Cathode 2 passive LED cathode for optocoupler channel 2 on the input side.
4 Anode 2 passive LED anode for optocoupler channel 2; recommended ON input current IF is 12-18 mA and absolute maximum forward input current is 20 mA.
5 GND power_in Ground reference for the output side (VSS = GND); a 0.1 µF bypass capacitor must be connected between pins 5 and 8.
6 VO 2 output Output of channel 2; absolute maximum output current is 10 mA and output voltage is limited to -0.5 V to VDD+0.5 V.
7 VO 1 output Output of channel 1; absolute maximum output current is 10 mA and output voltage is limited to -0.5 V to VDD+0.5 V.
8 VCC power_in Output-side supply pin; recommended supply is 4.5-5.5 V (absolute maximum 6 V) and a 0.1 µF bypass capacitor must be connected between pins 5 and 8.

Key specifications

Parameter Value
Manufacturer AOTE
Package SOP-8
Category Optoisolators
Pins 8

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Forward Input Current IF 20 mA 4
Power Consumption (input) PD 35 mW 4
Supply Voltage VDD 0 6 V 4
Output Current IO 10 mA 4
Output Voltage VO -0.5 V 4
Power Consumption (output) PD 100 mW 4
Isolation Voltage VISO 3750 Vrms 4
Operating Temperature Topr -40 105 °C 4
Storage Temperature Tstg -55 125 °C 4
Soldering Temperature Tsol 260 °C 4
Input Current (ON) IF 12 18 mA 4
Power Supply Voltage VDD 4.5 5.5 V 4
Power Supply Voltage (second printed row, no label) VDD 3 3.6 V 4
Operating Temperature TA -40 105 ℃ 4
Supply Voltage Slew Rate SR 0.5 500 V/ms 4
Forward Voltage VF 1.3 1.5 1.8 V IF=14mA 5
Reverse Breakdown Voltage BVR 5 V IR=10µA 5
Low Level Output Voltage (VDD=5V) VOL 0.2 0.8 V IF = 14mA, IO = 4mA, VDD=5V 5
Low Level Output Voltage (VDD=3.3V) VOL 0.35 0.8 V IF = 14mA, IO = 4mA, VDD=3.3V 5
Input Threshold Current ITH 8.8 10 A IOL = 20 μA 5
High Output Supply Current IDDH 7.6 12 A IF = 0mA 5
Low Output Supply Current IDDL 8.3 12 A IF = 14 mA 5
Propagation Delay Time to Logic High Output Level (VDD=3.3V) TPLH 22 40 ns IF=14mA, CL=15pF, VDD=3.3V 5
Propagation Delay Time to Logic High Output Level (VDD=5V) TPLH 50 ns IF=14mA, CL=15 pF, VDD=5V 5
Propagation Delay Time to Logic Low Output Level (VDD=3.3V) TPHL 28 40 ns IF=14mA, CL=15pF, VDD=3.3V 5
Propagation Delay Time to Logic Low Output Level (VDD=5V) TPHL 50 ns IF=14mA, CL=15pF, VDD=5V 5
Pulse Width Distortion (VDD=3.3V) /TPLH-TPHL/ 0 7 25 ns IF=14mA, CL=15pF, VDD=3.3V 5
Propagation Delay Skew TPSK 30 ns IF=14mA, CL=15pF 5
Rise Time (10%-90%) Tr 20 ns IF=14mA, CL=15pF 5
Fall Time (90%-10%) Tf 25 ns IF=14mA, CL=15pF 5
Logic High Common Mode Transient Immunity /CMH/ 10 15 kV/us IF=0mA, TA=25℃, /VCM/=1kV 5
Logic Low Common Mode Transient Immunity /CML/ 10 15 kV/us IF=14mA, TA=25℃, /VCM/=1kV 6
Isolation Resistance RI-O 1012 Ω VI-I=500V, 40 ~60%R.H. 6
Isolation Capacitance CI-O 0.6 F V=0, F=1MHz 6

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts Copper ③ 框架类型 Lead Frame（ Cu: 铜框架 Copper） 3

CAD (KiCad official)

  • Symbol: AT074L-CuH-S
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: at074l-cuh-s-etched.step / at074l-cuh-s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); at074l-cuh-s.step / at074l-cuh-s.glb are the bare package body.

Provenance

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

  • Datasheet: AOTE datasheet (13 pp, sha256 ab33938454bfeade, retrieved 2026-10-19, tier: lcsc)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • 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