COP8SAB728M9

Overview

The COP8SAB728M9 is an 8-bit CMOS microcontroller from the COP8SA family, featuring 2k bytes of OTP EPROM program memory and 128 bytes of RAM. It utilizes a modified Harvard architecture with a single-cycle instruction cycle time of 1 µs at 10 MHz CKI. The device supports 16 or 24 I/O pins in a 28-pin DIP package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated EMI reduction technology including low EMI clock circuitry and gradual turn-on output drivers.
• Versatile instruction set optimized for code efficiency with single-byte, single-cycle execution capabilities.
• Multi-Input Wakeup logic supporting optional interrupts on multiple pins.
• Flexible oscillator options including internal R/C, crystal/resonator, and external sources.

Applications

• Low-cost embedded control systems requiring full featured controllers
• Applications necessitating low radiated emissions and electromagnetic interference mitigation
• Battery-powered devices utilizing HALT and IDLE power saving modes

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and temperature rating. Ensure compatibility with existing development tools such as MetaLink systems if windowed versions are required for programming. Confirm that the OTP nature of the device aligns with production volume requirements.

Selection Notes

Select this component when a cost-effective solution with integrated EMI suppression is required. The COP8SA series serves as a pin-compatible replacement for older COP800 designs. Consider the 28-pin package constraints regarding available I/O lines and ensure the 2k memory capacity suffices for the application firmware.

Part Context

This device belongs to the COP8SA family, which includes ROM-based (COP8SAx5) and OTP EPROM (COP8SAx7) variants. The COP8SAB7 variant specifically provides 2k memory. These devices are supersets of the COP800 family, offering enhanced features like low EMI while maintaining architectural compatibility.

Replacement Considerations

The COP8SA family is designed as a direct replacement for COP800 family devices in new designs where possible. Verify pinout compatibility and instruction set equivalence before substitution.