COP8SAC740N9

Overview

The COP8SAC740N9 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 at 10 MHz CKI. The device includes one 16-bit timer/counter with PWM, MICROWIRE/PLUS serial I/O, Multi-Input Wakeup logic, and an on-chip R/C oscillator. It operates within a voltage range of 2.7V to 5.5V and supports industrial temperature ranges.

Feature Summary

• Low EMI design with gradual turn-on output drivers and internal current smoothing filters
• Versatile instruction set optimized for code efficiency and single-cycle execution
• Flexible software-configurable I/O ports supporting push-pull, tri-state, and weak pull-up modes
• Integrated power management features including HALT/IDLE modes and user-selectable Power-On Reset

Applications

• Low-cost embedded control systems requiring low electromagnetic interference
• Battery-powered devices utilizing low current drain and power-saving modes
• Industrial controllers needing robust I/O configuration and watchdog capabilities
• Applications requiring secure OTP programming with read/write protection

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm the exact temperature grade and package variant. Ensure compatibility with existing development tools such as the MetaLink Development System for emulation and debugging. Confirm that the OTP EPROM type meets the security requirements for your application, as it offers fully secured program space.

Selection Notes

Select this component when a balance of moderate memory size (4k) and high pin count (40 pins) is required in a DIP package. Consider the COP8SA family if low EMI emissions are critical for regulatory compliance. Evaluate the 10 MHz clock speed against system timing requirements and ensure the 2.7V to 5.5V supply range aligns with the target power architecture.

Part Context

This part belongs to the COP8SA family of 8-bit microcontrollers, which are supersets of the older COP800 family. These devices are designed as replacements for legacy designs while offering enhanced features like lower EMI and more flexible packaging options. The family spans various memory sizes from 1k to 4k, catering to different complexity levels in embedded applications.

Replacement Considerations

COP8SAx devices are instruction set and pin compatible supersets of the COP800 Family devices. They serve as direct replacements for COP800 components in new designs where possible. Verify pinout compatibility when migrating from older COP8 series parts.