COP8SAB728N9

Overview

The COP8SAB728N9 is an 8-bit CMOS microcontroller from the COP8SA family, featuring 2k bytes of OTP program memory and 128 bytes of RAM. It utilizes a modified Harvard architecture with a single-cycle instruction cycle time. The device supports a supply voltage range of 2.7V to 5.5V and operates within temperature ranges of -40°C to +85°C or -40°C to +125°C depending on the specific suffix. It includes a 16-bit timer/counter, MICROWIRE/PLUS serial interface, and Multi-Input Wakeup logic.

Feature Summary

• Integrated EMI reduction circuitry including low EMI clock circuits and gradual turn-on output drivers.
• Versatile instruction set optimized for code efficiency with single-byte, single-cycle execution capabilities.
• Flexible I/O configuration allowing software-selectable TRI-STATE, push-pull, and weak pull-up modes.
• Supports multiple oscillator options including internal R/C, external crystal, and external clock sources.

Applications

• Low-cost embedded control systems requiring full featured controller capabilities.
• Applications necessitating low electromagnetic interference (EMI) performance.
• Battery-powered devices utilizing power-saving HALT and IDLE modes.
• Systems requiring programmable PWM outputs and serial communication interfaces.

Procurement Notes

Verify the exact ordering suffix against the manufacturer's current datasheet to confirm temperature grade and package type. Confirm availability status as legacy components may be subject to discontinuation. Ensure development tools are compatible with the COP8SA family architecture before procurement.

Selection Notes

Select this component when a cost-effective 8-bit solution with OTP flexibility is required. Consider the pin count and I/O requirements relative to the available packages. Evaluate the need for specific features like high-current outputs or multi-input wakeup logic to ensure the device meets system constraints without over-specification.

Part Context

This part belongs to the COP8SA family, which serves as a superserset replacement for the older COP800 family in new designs. The family is characterized by its highly integrated nature, offering advanced features such as low EMI and power-on reset within very small packaging options suitable for space-constrained applications.

Replacement Considerations

COP8SAx devices are instruction set and pin compatible supersets of the COP800 Family devices. They serve as direct replacements for COP800 devices in new designs where possible. Verify pin compatibility and memory size differences when migrating from legacy parts.