component
TLC555QDRQ1
Public Made by Adomby adom
Texas Instruments Timers / Counters, SOIC-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
markdownTLC555QDRQ1
Texas Instruments · Timers / Counters · SOIC-8
TLC555QDRQ1 from Texas Instruments, in a SOIC-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. |
| 2 | TRIG | input | Start of timing input; TRIG < ½ CONT sets output high and discharge open. |
| 3 | OUT | output | High current timer output signal. |
| 4 | RESET | input | Active low reset input; forces output and discharge low. |
| 5 | CONT | bidirectional | Controls comparator thresholds; outputs 2/3VDD and allows bypass capacitor connection. |
| 6 | THRES | input | End of timing input; THRES > CONT sets output low and discharge low. |
| 7 | DISCH | tri_state | Open collector output to discharge timing capacitor. |
| 8 | VDD | power_in | Input supply voltage, 2V to 15V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Clock/Timing |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
TLC555QDRQ1 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
tlc555qdrq1-etched.step/tlc555qdrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tlc555qdrq1.step/tlc555qdrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (31 pp, sha256
8cb4a38b33ebf483, retrieved 2026-09-23, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).