COP8SGE728N8/NOPB

Overview

The COP8SGE728N8/NOPB is an 8-bit CMOS OTP microcontroller from the COP8SG family. It features 8k OTP EPROM memory and 256 bytes of RAM. The device operates within a voltage range of 2.7V to 5.5V and supports instruction cycle times as fast as 0.67 μs at 15 MHz. It includes two analog comparators, a full-duplex USART, MICROWIRE/PLUS serial interface, three 16-bit timers, and multi-input wakeup logic. Available in 28-pin SOIC/PDIP, 40-pin PDIP, and 44-pin PLCC/LQFP/WQFN 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.
• Supports multiple power-saving HALT and IDLE modes with user-selectable watchdog and clock monitor logic.

Applications

• Complex embedded control systems requiring low electromagnetic interference.
• Applications utilizing full-duplex serial communication via USART or MICROWIRE/PLUS interfaces.
• Systems requiring analog signal processing through integrated hardware comparators.

Procurement Notes

Verify the specific package variant (SOIC, PDIP, PLCC, LQFP, or WQFN) required for your design, as the base part number covers multiple form factors. Confirm that the OTP programming equipment is compatible with the COP8SG family before procurement. Ensure the selected package temperature rating matches the operational environment requirements.

Selection Notes

Select this component when a cost-effective 8-bit solution with integrated analog comparators and low EMI characteristics is needed. Choose the OTP version over ROM variants if field programmability or small-batch production flexibility is required. Consider the available I/O pin count in the chosen package to ensure sufficient connectivity for the application.

Part Context

This device belongs to the COP8SG family of 8-bit microcontrollers designed for applications demanding higher integration than standard COP8 devices. The SG series specifically adds analog comparators and enhanced UART capabilities while maintaining the efficient Harvard architecture and code density of the core COP8 instruction set.

Replacement Considerations

COP8SGE528N8/NOPB

FAQ

What is the difference between the COP8SGE5 and COP8SGE7 variants?

The COP8SGE5 utilizes mask-programmable ROM, whereas the COP8SGE7 uses One-Time Programmable (OTP) EPROM. Both share identical pinouts and functional specifications.

Does the COP8SGE7 support external crystal oscillation?

Yes, the device supports a crystal oscillator option which requires an on-chip bias resistor connected between the CKI and CKO pins.