component
SL555S
Public Made by Adomby adom
Slkor SLKORMICRO Elec Timers / Counters, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSL555S
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sl555s.step/sl555s.glbare 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, primaryclaude-haiku-5-5(text), consensusclaude-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).