COP8SAC728N8

Overview

The COP8SAC728N8 is an 8-bit CMOS microcontroller from the COP8SA family, featuring 4k bytes of OTP EPROM and 128 bytes of RAM. It utilizes a modified Harvard architecture with a 1 µs instruction cycle time at 10 MHz CKI. The device operates on a single supply voltage ranging from 2.7V to 5.5V and supports multiple clock options including internal R/C oscillators. It includes a 16-bit timer/counter, MICROWIRE/PLUS serial interface, and Multi-Input Wakeup logic. The component is housed in a 28-pin DIP package and is rated for industrial temperature ranges.

Feature Summary

• Low electromagnetic interference design utilizing patented circuitry for reduced radiated emissions.
• 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.
• Integrated power management features including HALT and IDLE modes with low current drain.

Applications

• Battery-powered consumer electronics requiring low EMI and extended battery life.
• Industrial control systems needing robust interrupt handling and high current outputs.
• Cost-sensitive embedded applications utilizing OTP programming for final customization.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm pin compatibility and temperature range. Ensure that the OTP version selected matches the required memory size and package type. Confirm that the design accounts for the humidity sensitivity level specified in the documentation. Cross-reference the part number with the latest revision history to ensure availability of development tools and support.

Selection Notes

Select this component when a cost-effective 8-bit solution with OTP flexibility is required. Consider the COP8SA family for its compatibility with existing COP800 designs. Evaluate the need for low EMI characteristics if operating in sensitive environments. Assess the available I/O pins and peripheral requirements against the 28-pin package constraints. Verify that the internal oscillator accuracy meets the system timing specifications.

Part Context

This device belongs to the COP8SA family, which serves as a superserset replacement for the older COP800 series. The family integrates advanced features like low EMI and power-on reset into a highly compact form factor. It supports various packaging options to maximize pin efficiency for board space-constrained designs.

Replacement Considerations

COP8SAC728N9

FAQ

What is the maximum instruction cycle time for the COP8SAC728N8?

The instruction cycle time is 1 µs when operating with a 10 MHz crystal or external clock source within the specified voltage range.

Does the COP8SAC728N8 support hardware stack operations?

Yes, the device supports a software stack scheme located in RAM, allowing for flexible subroutine calls without the limitations of a fixed hardware stack.

How many high current output pins are available on this microcontroller?

The device provides up to 12 high current output pins, suitable for driving LEDs, motors, or speakers directly.