TC520ACPD

Specialized Overview

The TC520ACPD is a serial interface adapter designed for Microchip's TC500/TC500A/TC510/TC514 dual-slope integrating A/D converters. It manages phase control signals (A, B, CMPTR) to reduce host processor load. The device operates on a single 5V supply with typical current consumption of 0.8 mA and power dissipation under 7.5 mW. It supports up to 17-bit accuracy plus polarity via an 18-bit shift register. Communication occurs over a 3-wire serial port with DCLK frequencies up to 3 MHz. The oscillator accepts external clocks up to 6 MHz or crystals between 1.0 and 4.0 MHz. It is housed in a 14-pin PDIP package and functions within a temperature range of 0°C to +70°C.

Specialized Feature Summary

• Converts TC500/TC500A/TC510/TC514 family A/D converters to serial operation
• Programmable conversion rate and resolution for maximum flexibility
• Supports up to 17-bits of accuracy plus polarity bit
• Low power operation typically dissipating less than 7.5 mW

Specialized Applications

• Computer peripheral interface
• Portable instruments
• Data acquisition system interface

Specialized Procurement Notes

Verify the specific ordering suffix 'CPD' corresponds to the 14-pin PDIP package variant. Confirm the operating temperature range matches the application requirements, as this suffix denotes the commercial grade (0°C to +70°C). Ensure compatibility with the target TC5xx A/D converter family before procurement.

Specialized Selection Notes

Select the TC520ACPD when interfacing with TC500 series converters requiring a through-hole solution. Verify that the system design accommodates the 14-pin DIP footprint. Consider the TC520ACOE if a surface-mount SOIC package is preferred instead. Ensure the host processor supports the required 3-wire serial protocol timing.

Specialized Part Context

The TC520ACPD belongs to the TC520A series of serial interface adapters. This component specifically serves as the logic controller for Microchip's integrating A/D converter families. It bridges the gap between parallel A/D outputs and serial host processors, simplifying data acquisition architectures by handling internal timing and phase sequencing automatically.

Specialized Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.