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Contents

README

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TLC555CPSR

Texas Instruments · Timers / Counters · SOIC-8-208mil

TLC555CPSR from Texas Instruments, in a SOIC-8-208mil. 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 voltage for the device.
2 TRIG input Timing input start; sets output high when input voltage falls below 1/3 VDD trigger threshold.
3 OUT output High-current timer output supporting CMOS rail-to-rail voltage swing.
4 RESET input Low-level active reset input; forces output and discharge pins to low level when driven low.
5 CONT input Control voltage input for threshold adjustment; internal reference voltage is 2/3 VDD when pin is open circuit.
6 THRES input Timing input end; resets output and discharge pins to low level when input exceeds 2/3 VDD threshold.
7 DISCH tri_state Open-collector discharge output providing low impedance path to ground for timing capacitor discharge.
8 VDD power_in Positive power supply voltage input supporting single supply operation from 2V to 15V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-8-208mil
Category Clock/Timing
Pins 8

CAD (KiCad official)

  • Symbol: TLC555CPSR
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8-208mil (KiCad packages3D, STEP)
  • 3D model files: tlc555cpsr-etched.step / tlc555cpsr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlc555cpsr.step / tlc555cpsr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (49 pp, sha256 3e8bc6d70bce3f3f, retrieved 2026-10-01, 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-4-5-20251001 (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