COP8SGE728N8

Overview

The COP8SGE728N8 is an 8-bit CMOS microcontroller from the COP8SG family, featuring 8k OTP EPROM and 256 bytes of RAM. It operates on a modified Harvard architecture with a 0.67 μs instruction cycle time at 15 MHz CKI. The device includes two analog comparators, a full-duplex USART, MICROWIRE/PLUS serial interface, three 16-bit timers, and multi-input wakeup logic. It supports 2.7V to 5.5V operation and is available in 28-pin SOIC/PDIP packages.

Feature Summary

• Integrated EMI reduction circuitry including low radiated emissions clocking and gradual turn-on output drivers.
• Versatile I/O configuration allowing software-selectable TRI-STATE, push-pull, weak pull-up, and high impedance modes.
• Advanced peripheral set comprising a full-duplex USART, MICROWIRE/PLUS interface, and multiple 16-bit timer/counters.

Applications

• Complex embedded control systems requiring larger memory capacity
• Applications demanding low electromagnetic interference (EMI) performance
• Systems utilizing analog signal processing via integrated comparators

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet SNOS516E to confirm package type and temperature range availability. Ensure compatibility with existing development tools for OTP programming. Confirm that the selected variant meets the required environmental specifications for the intended application environment.

Selection Notes

Select this component when a cost-effective 8-bit solution with OTP flexibility is required. It serves as a direct form-fit-function replacement for ROM-based COP8SGx5 devices during production or development phases. Consider the 28-pin package constraint if board space is limited while maintaining necessary I/O count.

Part Context

This part belongs to the Texas Instruments COP8SG family of 8-bit microcontrollers. The 'E' designation indicates 8k memory size, while the '7' suffix specifies One-Time Programmable (OTP) EPROM technology. These devices are designed to be fully compatible with the ROM versions of the same family, facilitating easy transitions between prototyping and mass production.

Replacement Considerations

COP8SGE528N8

FAQ

What is the primary difference between the COP8SGE7 and COP8SGE5 variants?

The COP8SGE7 utilizes One-Time Programmable (OTP) EPROM memory, whereas the COP8SGE5 uses Mask ROM. They are otherwise 100% form-fit-function compatible.

Does the COP8SGE728N8 support external clock sources?

Yes, the device supports Crystal Oscillator, External Oscillator, and Internal R/C Oscillator options via the CKI pin.