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SE555QS-13
Public Unreviewedby Ray
Diodes Incorporated Timers / Clock Oscillators, SOP-8. Datasheet-verified pinout, 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
markdownSE555QS-13
Diodes Incorporated · Timers / Clock Oscillators · SOP-8
SE555QS-13 from Diodes Incorporated, in a SOP-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground reference (0V). Connect to system ground. |
| 2 | TRIG | input | Trigger input. A negative-going pulse below 1/3 VCC on this pin sets the internal flip-flop, driving the output high and starting the timing cycle. |
| 3 | OUT | output | Push-pull output. Swings between near-GND (low) and near-VCC (high). Can source or sink up to ~200 mA. |
| 4 | RESET | input | Active-low reset. When held below ~0.7V, forces the output low and disables timing. Tie to VCC if unused. |
| 5 | CONT | input | Control voltage. Provides access to the internal 2/3 VCC reference node; can be driven to alter threshold levels or bypassed to GND with a 10 nF capacitor for noise immunity. |
| 6 | THRES | input | Threshold input. When voltage on this pin exceeds 2/3 VCC (or the CONT pin voltage), it resets the internal flip-flop, driving the output low and ending the timing cycle. |
| 7 | DISCH | output | Discharge. Open-collector output connected to the collector of an internal NPN transistor; used to discharge the external timing capacitor when the flip-flop is reset. |
| 8 | VCC | power_in | Positive supply voltage. Operating range 4.5V to 16V (SE555 industrial/military). Bypass with 100 nF close to the pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Diodes Incorporated |
| Package | SOP-8 |
| Category | RTC |
| Pins | 8 |
Ordering variants
Same part, different packaging or reel option.
SE555QS-13
CAD (KiCad official)
- Symbol:
SE555QS-13 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Diodes Incorporated datasheet (14 pp, sha256
9364ca7b3a26505a, retrieved 2026-08-17, 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).