COP8SAA720N9

Overview

The COP8SAA720N9 is an 8-bit CMOS microcontroller from the COP8SA family, featuring 1k bytes of OTP EPROM and 64 bytes of RAM. It utilizes a 20-pin DIP package and supports an operating temperature range of 0°C to +70°C. The device operates on a single supply voltage between 2.7V and 5.5V. Key peripherals include a 16-bit timer/counter with PWM output, MICROWIRE/PLUS serial interface, and Multi-Input Wakeup logic. It incorporates low EMI circuitry and offers user-selectable options for watchdog, clock modes, and power-on reset.

Feature Summary

• Features a quiet design with patented EMI reduction technology including gradual turn-on output drivers and internal current smoothing filters.
• Provides versatile I/O configuration allowing individual pin setup as push-pull outputs, high impedance inputs, or weak pull-up inputs.
• Includes a multi-input wakeup logic system supporting optional interrupts to facilitate low-power HALT and IDLE mode recovery.

Applications

• Low-cost embedded control systems requiring minimal external components
• Battery-operated devices utilizing low current drain and power-saving modes
• Applications necessitating electromagnetic interference (EMI) compliance

Procurement Notes

Verify the specific ordering suffix N9 corresponds to the 20-pin DIP package and the 0°C to +70°C commercial temperature grade. Confirm that the OTP EPROM variant meets the required program memory security needs, as these devices offer fully secured read/write protection. Ensure compatibility with existing development tools for windowed versions if field programming is not required.

Selection Notes

Select this component when a cost-effective 8-bit solution with integrated OTP memory and low EMI characteristics is required. The 20-pin DIP format suits through-hole designs needing moderate I/O counts. Consider the modified Harvard architecture for efficient data table access in program memory. Evaluate the internal R/C oscillator option if external crystal components must be minimized.

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 maintains instruction set and pin compatibility while adding advanced features like low EMI and small packaging options. It represents a transition point in Texas Instruments' (formerly National Semiconductor) 8-bit MCU portfolio focusing on integration and noise reduction.

Replacement Considerations

COP8SAA720M9