COP8SAC744V9

Overview

The COP8SAC744V9 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 time at 10 MHz CKI. The device operates within a voltage range of 2.7V to 5.5V and supports temperatures from -40°C to +85°C. It includes a 16-bit timer/counter with PWM, MICROWIRE/PLUS serial interface, Multi-Input Wakeup logic, and up to 36 I/O pins in a 44-pin PLCC package.

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
• Multi-sourced interrupt capability including external interrupts and idle timer
• Flexible I/O configuration with software-selectable TRI-STATE, push-pull, and weak pull-up modes

Applications

• Low-cost embedded control systems requiring low electromagnetic interference
• Battery-powered applications utilizing power-saving HALT and IDLE modes
• Industrial controllers needing robust watchdog and clock monitor logic
• Systems requiring direct access to data tables stored in program memory

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm temperature range and package type. Ensure compatibility with existing development tools such as MetaLink systems. Confirm that the OTP programming requirements align with production needs. Check for any end-of-life notices or alternative component recommendations from Texas Instruments.

Selection Notes

Select this component when a cost-effective 8-bit solution with low EMI characteristics is required. Consider the COP8SA family for its high pin efficiency and flexible I/O options. Evaluate the available memory sizes (1k to 4k) to ensure sufficient program space. Review the package options to match board layout constraints and thermal requirements.

Part Context

The COP8SAC744V9 belongs to the COP8SA family of microcontrollers, which are supersets of the earlier COP800 family. These devices offer enhanced features like low EMI and power-on reset while maintaining pin and instruction set compatibility. The family targets applications demanding full-featured control with minimal external components.

Replacement Considerations

COP8SAC744V8 serves as a commercial grade replacement for extended temperature ranges. Windowed versions like COP8SAC744Q3 are available for development purposes. Verify pinout and instruction set compatibility before substituting with other COP8 family members.