COP8SAB720N8

Overview

The COP8SAB720N8 is an 8-bit CMOS microcontroller from the COP8SA family, featuring 2k bytes of One-Time Programmable (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 includes an internal R/C oscillator. It provides up to 16 I/O pins in a 20-pin DIP package.

Feature Summary

• Low electromagnetic interference design utilizing gradual turn-on output drivers and internal current smoothing filters.
• Versatile instruction set optimized for code efficiency with single-byte, single-cycle execution capabilities.
• Integrated peripheral features including a 16-bit timer/counter with PWM support and MICROWIRE/PLUS serial interface.
• Flexible software-configurable I/O ports supporting push-pull, tri-state, and weak pull-up modes.

Applications

• Low-cost embedded control systems requiring low EMI emissions
• Battery-powered applications utilizing power-saving HALT and IDLE modes
• Industrial controllers using the MICROWIRE/PLUS serial interface

Procurement Notes

Verify the specific OTP variant against the ordering information table to ensure correct memory size and temperature rating. Confirm package type matches the required form factor. Check for RoHS compliance status as older revisions may not meet current environmental standards. Validate that development tools are compatible with the COP8SA family architecture before procurement.

Selection Notes

Select this component when a cost-effective 8-bit solution with sufficient program memory for moderate complexity logic is required. Consider the COP8SAB7 series for its balance of 2k OTP space and pin count. Evaluate the internal R/C oscillator accuracy if precise timing is critical without external components. Ensure the operating voltage range aligns with the system power supply constraints.

Part Context

This part belongs to the COP8SA family of 8-bit microcontrollers designed by National Semiconductor, now Texas Instruments. The family replaces earlier COP800 devices in new designs while maintaining pin compatibility. The COP8SA series emphasizes low EMI and high integration, offering various memory options and packaging styles to suit diverse application needs.

Replacement Considerations

COP8SAB720M9

FAQ

What is the maximum clock frequency supported by the COP8SAB720N8?

The device supports a maximum clock input frequency of 10 MHz, resulting in a 1 µs instruction cycle time.

Does the COP8SAB720N8 include an internal oscillator?

Yes, it features an on-chip R/C oscillator that can be selected via user-configurable options.

How many I/O pins are available in the 20-pin DIP package?

The 20-pin DIP package provides up to 16 usable I/O pins.