component
TLC2558IDW
Public Made by Adomby adom
Texas Instruments Analog To Digital Converters (ADCs), SOIC-20-300mil. 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
markdownTLC2558IDW
Texas Instruments · Analog To Digital Converters (ADCs) · SOIC-20-300mil
TLC2558IDW from Texas Instruments, in a SOIC-20-300mil. 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 | SDO | tri_state | The 3-state serial output carries the A/D result MSB (D15) first and stays high-impedance while CS is high and until the MSB is presented. |
| 2 | SDI | input | Serial data input takes the MSB (D15) first, where the first four bits are decoded as one of 16 commands and configure writes require 12 additional data bits. |
| 3 | SCLK | input | Input serial clock from the host shifts SDI into the input register and is also the source of the conversion clock. |
| 4 | EOC/(INT) | output | Programmed as EOC, it goes low at the end of sampling and stays low until conversion data are ready; programmed as INT, its falling edge signals that data are ready for output. |
| 5 | VCC | power_in | Positive supply voltage; the device operates from a single 5-V supply. |
| 6 | A0 | input | Analog signal input, internally multiplexed, with a driving source impedance that should be less than or equal to 1 kΩ. |
| 7 | A1 | input | Analog signal input, internally multiplexed, with a driving source impedance that should be less than or equal to 1 kΩ. |
| 8 | A2 | input | Analog signal input, internally multiplexed, with a driving source impedance that should be less than or equal to 1 kΩ. |
| 9 | A3 | input | Analog signal input, internally multiplexed, with a driving source impedance that should be less than or equal to 1 kΩ. |
| 10 | A4 | input | Analog signal input, internally multiplexed, with a driving source impedance that should be less than or equal to 1 kΩ. |
| 11 | A5 | input | Analog signal input, internally multiplexed, with a driving source impedance that should be less than or equal to 1 kΩ. |
| 12 | A6 | input | Analog signal input, internally multiplexed, with a driving source impedance that should be less than or equal to 1 kΩ. |
| 13 | A7 | input | Analog signal input, internally multiplexed, with a driving source impedance that should be less than or equal to 1 kΩ. |
| 14 | CSTART | input | Starts sampling on a high-to-low transition and the conversion on a low-to-high transition, with a minimum low time of 800 ns; tie to VCC if not used. |
| 15 | GND | power_in | Ground return for the internal circuitry; all voltage measurements are referenced to GND. |
| 16 | PWDN | input | Analog and reference circuits are powered down when this pin is at logic zero, and the device restarts by active CS or CSTART after it returns to logic one. |
| 17 | FS | input | DSP frame sync input marks the start of a serial data frame; tie to VCC if not used. |
| 18 | REFM | input | External reference input or internal reference decoupling terminal. |
| 19 | REFP | input | External reference input or internal reference decoupling terminal; the maximum input range is set by REFP minus REFM, with 10 µF and 0.1 µF shunt capacitors between REFP and REFM. |
| 20 | CS | input | Chip select: a high-to-low transition resets the 4-bit counter, enables SDI and removes SDO from 3-state, and a low-to-high transition ends the frame. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-20-300mil |
| Category | ADC/DAC/Data Conversion |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
TLC2558IDW - Footprint:
Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm - 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
- 3D model files:
tlc2558idw-etched.step/tlc2558idw-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tlc2558idw.step/tlc2558idw.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (52 pp, sha256
34feee210db60148, retrieved 2026-10-08, tier: lcsc) - 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).