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SL555S

Public Made by Adom

by adom

Slkor SLKORMICRO Elec Timers / Counters, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SL555S

Slkor SLKORMICRO Elec · Timers / Counters · SOP-8

SL555S from Slkor SLKORMICRO Elec, 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 GND power_in Power ground (electrical ground reference) for the timer.
2 Trig input Trigger input that starts the monostable output cycle when its level reaches 1/3 VCC, with a maximum input voltage of VCC.
3 Output output Timer output with a recommended output current of ±200 mA and an absolute maximum of ±220 mA.
4 Reset input Reset input with a maximum input voltage of VCC; its high and low threshold levels are specified in the electrical characteristics.
5 Cont input Control voltage pin with a maximum input voltage of VCC, used to modulate the pulse width or pulse position when driven externally.
6 Thres input Threshold input with a maximum input voltage of VCC; its threshold voltage and current are specified in the electrical characteristics.
7 Disch passive Discharge pin connected to the internal discharge transistor, whose off-state leakage is specified with the output high and whose saturation voltage Vdis(sat) is specified in the electrical characteristics.
8 VCC power_in Positive supply with a recommended range of 4.5 V to 15 V and an absolute maximum of 18 V.

Key specifications

Parameter Value
Manufacturer Slkor SLKORMICRO Elec
Package SOP-8
Category Clock/Timing
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
Supply voltage (recommended) VCC 4.5 15 V 2
Supply voltage (absolute maximum) VCC 18 V 2
Output current (absolute maximum) Io -220 220 mA 2
Output current (recommended) Io -200 200 mA 2
Power dissipation PD 400 mW 2
Operating temperature TA -20 70 ℃ 2
Storage temperature TS -65 150 ℃ 2
Soldering temperature TW 260 ℃ 10s 2
Supply voltage (electrical table) VCC 4.5 15 V 3
Supply current ICC 3 6 mA VCC =5V, RL =∝, VO=VOL 3
Supply current ICC 1.5 5 mA VCC =5V, RL =∝, VO=VOH 3
Supply current ICC 8 15 mA VCC =15V, RL =∝, VO=VOL 3
Supply current ICC 6 13 mA VCC =15V, RL =∝, VO=VOH 3
Control voltage VCL 10 11 V VCC =15V 3
Control voltage VCL 3.3 4 V VCC =5V 3
Threshold voltage VTH 10 11.2 V VCC =15V 3
Threshold voltage VTH 3.3 4.2 V VCC =5V 3
Threshold current ITH 250 nA VCC =15V, VTH =0V 3
Trigger voltage VTRIG 5 5.6 V VCC =15V 3
Trigger voltage VTRIG 1.6 2.2 V VCC =5V 3
Maximum Ra+Rb Ra+Rb 10 MΩ VCC =15V 3
Maximum Ra+Rb Ra+Rb 3.4 MΩ VCC =5V 3

CAD (KiCad official)

  • Symbol: SL555S
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: sl555s-etched.step / sl555s-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sl555s.step / sl555s.glb are the bare package body.

Provenance

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

  • Datasheet: Slkor SLKORMICRO Elec datasheet (6 pp, sha256 143cdd2c4c0f4ab8, retrieved 2026-10-18, 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