TLC1543CFNR

Introduction to TLC1543CFNR
- The TLC1543CFNR is a Texas Instruments CMOS analog-to-digital converter (ADC) in the TLC1543 family. It is designed for low‑power, moderate‑speed data acquisition with microcontrollers.
- Interface and operation: It supports a multi‑plexed analog input, delivering an 8‑bit digital word on a parallel data bus. It requires an external clock and a start signal; End‑of‑Conversion (EOC) indicates when data is ready. A reference voltage sets full‑scale.
- Packaging: CFNR is TI’s packaging code for this device variant.
- Typical use: Reading sensors or other analog signals in microcontroller projects, instrumentation, and control systems.
- Quick usage notes: Choose Vref, connect inputs to the multiplexer, provide clock, assert start, then read D0–D7 when EOC asserts.
- Important: For exact electrical specs (SPS, input range, timing, pinout), consult the official TLC1543CFNR datasheet.

Equivalent parts (functionally similar: 2-channel, 10-bit, serial/SPI ADC):
- Microchip MCP3002
- Analog Devices AD7822
Other vendors offer comparable 2-channel, 10-bit SPI ADCs; check exact speed, input range, and pinout before substitution.

TLC1543CFNR features (concise):
- 4-channel analog multiplexer feeding an 8-bit successive-approximation ADC
- Parallel 8-bit data output with status/busy signaling
- External voltage reference input; input range 0 to Vref
- Internal sample-and-hold
- Single-supply operation (typically 5V) with CMOS logic
- Low-power operation
- RoHS-compliant lead-free package (NR suffix) in standard DIP/SOIC formats
- Suitable for microcontroller data-acquisition with a parallel interface

- Pin count: 14 pins (DIP/SOIC package)
- Function: Four-channel, 8-bit analog-to-digital converter with an internal 4:1 multiplexer. Select one of CH0–CH3 as the input and convert to an 8-bit digital word, output via a serial data interface (clock and data out; with a start/enable control).

- Manufacturer: Texas Instruments Incorporated (TI)
- What kind of company: TI is an American multinational semiconductor company that designs and manufactures integrated circuits and other electronics components, including analog, mixed-signal, and digital ICs.

Typical application areas for TLC1543CFNR (an 8-bit ADC) include:
- Data acquisition systems and instrumentation
- Sensor interfacing in embedded systems
- Industrial process control and monitoring
- Automotive instrumentation and dashboard readouts
- Medical and laboratory instrumentation
- Audio/monitoring and low-speed signal processing
- Prototyping and educational microcontroller projects
- Robotics and automation sensing interfaces

16-pin Plastic DIP (PDIP) package.