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TLC1543CDWR

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

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TLC1543CDWR

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

TLC1543CDWR 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 A0 input Analog signal input, internally multiplexed; the driving source impedance should be less than or equal to 1 kΩ.
2 A1 input Analog signal input, internally multiplexed; the driving source impedance should be less than or equal to 1 kΩ.
3 A2 input Analog signal input, internally multiplexed; the driving source impedance should be less than or equal to 1 kΩ.
4 A3 input Analog signal input, internally multiplexed; the driving source impedance should be less than or equal to 1 kΩ.
5 A4 input Analog signal input, internally multiplexed; the driving source impedance should be less than or equal to 1 kΩ.
6 A5 input Analog signal input, internally multiplexed; the driving source impedance should be less than or equal to 1 kΩ.
7 A6 input Analog signal input, internally multiplexed; the driving source impedance should be less than or equal to 1 kΩ.
8 A7 input Analog signal input, internally multiplexed; the driving source impedance should be less than or equal to 1 kΩ.
9 A8 input Analog signal input, internally multiplexed; the driving source impedance should be less than or equal to 1 kΩ.
10 GND power_in Ground return terminal for the internal circuitry; all voltage measurements are referenced to this terminal.
11 A9 input Analog signal input, internally multiplexed; the driving source impedance should be less than or equal to 1 kΩ.
12 A10 input Analog signal input, internally multiplexed; the driving source impedance should be less than or equal to 1 kΩ.
13 REF- input Lower reference voltage, nominally ground, applied to this terminal.
14 REF+ input Upper reference voltage, nominally VCC; the maximum input voltage range is the difference between REF+ and REF-.
15 CS input Chip select; a high-to-low transition resets the internal counters and enables DATA OUT, ADDRESS and I/O CLOCK, and a low-to-high transition disables ADDRESS and I/O CLOCK within a setup time plus two falling edges of the internal system clock.
16 DATA OUT tri_state 3-state serial output of the A/D result, high-impedance when CS is high, MSB first, with the LSB on the ninth falling edge of I/O CLOCK and driven low on the tenth falling edge.
17 ADDRESS input Serial 4-bit address input, MSB first, shifted in on the first four rising edges of I/O CLOCK and ignored for the remainder of the conversion period.
18 I/O CLOCK input Serial input/output clock that loads the address on the first four rising edges, shifts data out on DATA OUT, and transfers conversion control to the internal controller on the tenth falling edge.
19 EOC output End-of-conversion output that goes low on the trailing edge of the tenth I/O CLOCK and returns high when the conversion is complete and data are ready for transfer.
20 VCC power_in Positive supply voltage.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-20-300mil
Category ADC/DAC/Data Conversion
Pins 20

CAD (KiCad official)

  • Symbol: TLC1543CDWR
  • Footprint: Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm
  • 3D model: SOIC-20-300mil (KiCad packages3D, STEP)
  • 3D model files: tlc1543cdwr-etched.step / tlc1543cdwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlc1543cdwr.step / tlc1543cdwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 21179f2795a4475c, retrieved 2026-10-08, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (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