COP8SAC740Q3

Overview

The COP8SAC740Q3 is an 8-bit CMOS microcontroller from the COP8SA family, featuring 4k EPROM program memory and 128 bytes of RAM. It utilizes a modified Harvard architecture with a 1 µs instruction cycle time at 10 MHz CKI. The device includes one 16-bit timer/counter with PWM output, MICROWIRE/PLUS serial I/O, Multi-Input Wakeup logic, and an on-chip R/C oscillator. It supports 2.7V to 5.5V operation and offers up to 12 high current outputs. This specific variant is housed in a 40-pin DIP package and is rated for room temperature operation only.

Feature Summary

• Low EMI design incorporating gradual turn-on output drivers and internal smoothing filters
• Versatile instruction set optimized for code efficiency with single-byte single-cycle execution
• Multi-sourced interrupt capability supporting external interrupts, timers, and wake-up events
• Flexible I/O configuration allowing software-selectable TRI-STATE, push-pull, or weak pull-up modes

Applications

• Low cost embedded control systems requiring low electromagnetic interference
• Applications utilizing MICROWIRE/PLUS compatible serial communication interfaces
• Battery-powered devices benefiting from HALT and IDLE power saving modes
• Systems requiring robust power-on reset and watchdog timer functionality

Procurement Notes

Verify that the application environment strictly adheres to room temperature specifications, as this windowed EPROM variant lacks extended temperature ratings. Confirm compatibility with existing development tools designed for the COP8SA family, specifically ensuring support for windowed packages during programming and erasure cycles. Validate pin assignments against the 40-pin DIP connection diagram to ensure correct integration into the target circuit board layout.

Selection Notes

Select this component when a form-fit-function replacement for the older COP800 family is required in new designs. Choose this part if the application demands 4k of programmable memory within a 40-pin DIP footprint. Consider this option for prototyping due to the erasable windowed package, which facilitates hardware debugging and firmware updates using standard COP8 development tools.

Part Context

This device belongs to the COP8SA family of 8-bit microcontrollers, which are supersets of the legacy COP800 architecture. The family provides ROM and OTP variants with varying memory sizes and package options. The COP8SAC7 series specifically denotes 4k EPROM versions. The Q3 suffix identifies the windowed package type intended for development and erasure purposes, distinguishing it from sealed production versions.

Replacement Considerations

COP8SAx devices serve as direct replacements for COP800 Family devices in new designs due to instruction set and pin compatibility.