COP8SGR744V8

Overview

The COP8SGR744V8 is an 8-bit CMOS microcontroller from the COP8SG family, featuring a 32k OTP EPROM and 512 bytes of RAM. It utilizes a modified Harvard architecture with a 0.67 μs instruction cycle at 15 MHz CKI. The device integrates two analog comparators, a full-duplex USART, three 16-bit timers, and MICROWIRE/PLUS serial interface. Operating within a 2.7V to 5.5V range, it supports HALT and IDLE power-saving modes. The component is housed in a 44-pin PLCC package.

Feature Summary

• Integrated EMI reduction circuitry including low radiated emissions clocking and gradual turn-on output drivers.
• Versatile I/O configuration allowing independent software selection of TRI-STATE, push-pull, weak pull-up, or high impedance modes.
• Advanced interrupt handling with fourteen multi-source vectored interrupts and multi-input wakeup logic.
• Code-efficient instruction set optimized for single-byte, single-cycle execution to maximize program memory utilization.

Applications

• Complex embedded control systems requiring larger memory capacity
• Applications demanding low electromagnetic interference (EMI) performance
• Systems utilizing analog signal processing via integrated comparators
• Industrial controllers requiring robust serial communication interfaces

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm pinout compatibility and temperature grade. Confirm that the OTP programming requirements align with available development tools. Check for end-of-life status as availability may be restricted. Ensure voltage levels match system requirements before integration.

Selection Notes

Select this model when 32k program memory and 512 bytes of RAM are required for complex applications. Choose the OTP variant for production runs where ROM costs must be minimized compared to mask-programmed devices. Consider the 44-pin PLCC package if board space allows for its footprint. Evaluate the need for analog comparators and USART functionality to justify the feature set over simpler variants.

Part Context

This component belongs to the COP8SG family of 8-bit microcontrollers designed by Texas Instruments. The family includes ROM-based (x5) and OTP-based (x7) versions with varying memory sizes. The COP8SGR7 series specifically denotes the 32k OTP EPROM configuration. These devices share a common core architecture and peripheral set, differing primarily in memory type and capacity.

Replacement Considerations

COP8SGE744V8

FAQ

What is the difference between the COP8SGR7 and COP8SGR5 variants?

The COP8SGR7 is an OTP (One Time Programmable) version, while the COP8SGR5 is a ROM (Mask Programmed) version. They are 100% form-fit-function compatible.

Does the COP8SGR744V8 support external crystal oscillators?

Yes, the device supports crystal oscillators in conjunction with the CKO pin, in addition to internal R/C and external oscillator options.