component
SA555P
Public Made by Adomby adom
Texas Instruments Timers / Counters, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads only if this page sits in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads only if this page sits in the background.
PCB Footprint
Open full view ↗Loads on click. Unloads only if this page sits in the background.
Datasheet
Open in new tab ↗Loads on click. Unloads only if this page sits in the background.
README
markdownSA555P
Texas Instruments · Timers / Counters · DIP-8
SA555P from Texas Instruments, in a DIP-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 | Ground reference for the device; all voltages in the datasheet are referenced to GND. |
| 2 | TRIG | input | Timing start input; when TRIG is below 1/2 CONT the output is set high and the discharge pin is open. |
| 3 | OUT | output | High-current timer output; recommended output current is ±200 mA. |
| 4 | RESET | input | Active-low reset input that forces the output and discharge pin low; tie to VCC when unused to avoid false triggering. |
| 5 | CONT | bidirectional | Controls the comparator threshold, provides 2/3 × VCC at the pin, and allows a bypass capacitor to be connected. |
| 6 | THRES | input | Timing end input; when THRES > CONT the output and discharge pin are driven low. |
| 7 | DISCH | output | Open-collector output that discharges the timing capacitor, conducting to GND while the output is low. |
| 8 | VCC | power_in | Supply voltage input; the recommended range for SA555 is 4.5 V to 16 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | DIP-8 |
| Category | Clock/Timing |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
SA555P - Footprint:
Package_DIP:DIP-8_W7.62mm - 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files:
sa555p-etched.step/sa555p-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sa555p.step/sa555p.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
7ce3a7a81c99394f, retrieved 2026-10-08, 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).