COP8CBR9IMT8/NOPB

Overview

The COP8CBR9IMT8/NOPB is an 8-bit CMOS Flash microcontroller from the COP8 family, manufactured by Texas Instruments. It features 32 kbytes of Flash program memory and 1 kbyte of volatile RAM. The device includes a 10-bit Successive Approximation Analog to Digital Converter supporting up to 16 channels, two USART modules, and three timers. Operating voltage ranges from 2.7V to 5.5V with a temperature range of -40°C to +85°C. It utilizes a TSSOP-48 package and supports MICROWIRE/PLUS serial peripheral interface for in-system programming.

Feature Summary

• Virtual EEPROM capability using Flash program memory for nonvolatile data storage
• EMI reduction technology including low EMI clock circuitry and gradual turn-on output drivers
• Dual clock operation with high-speed and low-speed oscillators for power saving modes
• True in-system emulation and real-time debugging support

Applications

• Embedded control systems requiring large memory and low electromagnetic interference
• Applications needing in-system reprogrammability via MICROWIRE/PLUS interface
• Devices utilizing virtual EEPROM for variable data retention without dedicated EEPROM hardware

Procurement Notes

Verify the specific suffix IMT8 corresponds to the TSSOP-48 package and commercial temperature grade (-40°C to +85°C). Confirm that the NOPB designation indicates RoHS compliance and lead-free status. Check current availability as this component may be subject to end-of-life notices or obsolescence warnings from the manufacturer.

Selection Notes

Select this component when an 8-bit architecture with substantial Flash memory (32k) and integrated analog conversion is required. Ensure the application benefits from the COP8 instruction set efficiency and EMI reduction features. Verify that the TSSOP-48 package fits the board layout constraints and that the 2.7V to 5.5V supply range matches the system power design.

Part Context

This part belongs to the COP8CBR9 series, which shares architectural similarities with the COP8CCR9 and COP8CDR9 variants. The primary distinction lies in the Brownout Reset voltage thresholds; the CBR9 variant specifies a 2.7V to 2.9V threshold. All variants offer identical memory sizes and peripheral sets but differ in operating voltage ranges and temperature capabilities.

Replacement Considerations

Direct replacements within the same package and pinout include other COP8CBR9 variants with different suffixes indicating package or temperature changes. Cross-family migration to newer Texas Instruments 8-bit MCUs requires significant software and hardware redesign due to architectural differences.