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TLC2543IDWR

Public Made by Adom

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Texas Instruments Analog To Digital Converters (ADC), SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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Datasheet

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Contents

README

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TLC2543IDWR

Texas Instruments · Analog To Digital Converters (ADC) · SOIC-20-300mil

TLC2543IDWR 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 AIN0 input Analog input with source impedance ≤50 Ω for 4.1 MHz I/O CLOCK operation and 60 pF input capacitance.
2 AIN1 input Analog input with source impedance ≤50 Ω for 4.1 MHz I/O CLOCK operation and 60 pF input capacitance.
3 AIN2 input Analog input with source impedance ≤50 Ω for 4.1 MHz I/O CLOCK operation and 60 pF input capacitance.
4 AIN3 input Analog input with source impedance ≤50 Ω for 4.1 MHz I/O CLOCK operation and 60 pF input capacitance.
5 AIN4 input Analog input with source impedance ≤50 Ω for 4.1 MHz I/O CLOCK operation and 60 pF input capacitance.
6 AIN5 input Analog input with source impedance ≤50 Ω for 4.1 MHz I/O CLOCK operation and 60 pF input capacitance.
7 AIN6 input Analog input with source impedance ≤50 Ω for 4.1 MHz I/O CLOCK operation and 60 pF input capacitance.
8 AIN7 input Analog input with source impedance ≤50 Ω for 4.1 MHz I/O CLOCK operation and 60 pF input capacitance.
9 AIN8 input Analog input with source impedance ≤50 Ω for 4.1 MHz I/O CLOCK operation and 60 pF input capacitance.
10 GND power_in Ground return terminal for internal circuitry; all voltage measurements with respect to GND.
11 AIN9 input Analog input with source impedance ≤50 Ω for 4.1 MHz I/O CLOCK operation and 60 pF input capacitance.
12 AIN10 input Analog input with source impedance ≤50 Ω for 4.1 MHz I/O CLOCK operation and 60 pF input capacitance.
13 REF- input Negative reference voltage; lower reference voltage value nominally ground.
14 REF+ input Positive reference voltage; upper reference voltage value nominally VCC; maximum input voltage range determined by difference from REF-.
15 CS input Chip select; high-to-low transition resets internal counters and controls and enables DATA OUT, DATA INPUT, and I/O CLOCK.
16 DATA OUT tri_state 3-state serial output for A/D conversion result; high-impedance when CS is high; active when CS is low.
17 DATA INPUT input Serial-data input; 4-bit serial address selects desired analog input or test voltage; MSB first on first four I/O CLOCK rising edges.
18 I/O CLOCK input Input/output clock; clocks eight input data bits on first eight rising edges; charges capacitor array from fourth through last falling edges.
19 EOC output End of conversion; transitions from high to low after falling edge of last I/O CLOCK; remains low until conversion complete.
20 VCC power_in Positive supply voltage.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-20-300mil
Category Data Acquisition
Pins 20

CAD (KiCad official)

  • Symbol: TLC2543IDWR
  • Footprint: Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm
  • 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
  • 3D model files: tlc2543idwr-etched.step / tlc2543idwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlc2543idwr.step / tlc2543idwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (40 pp, sha256 4f0ece16b966081b, retrieved 2026-10-06, tier: lcsc)
  • 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