ATTINY167-MMUR

Overview

The ATtiny167-MMUR is an 8-bit AVR microcontroller featuring a 16 KB In-System Programmable Flash memory, 512 bytes of EEPROM, and 512 bytes of SRAM. It operates within a voltage range of 1.8 V to 5.5 V and supports clock frequencies up to 16 MHz at the upper voltage limit. The device includes a 10-bit ADC with 11 single-ended channels, a LIN controller, UART, SPI, USI, two timer/counters, and an analog comparator. It utilizes a 32 x 8 general-purpose working register architecture for efficient RISC execution.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle
• Integrated LIN 2.1/1.3 controller and 8-bit UART for serial communication
• On-chip debugWIRE system for programming and debugging via a single pin
• Multiple power-saving modes including Idle, Power-down, and ADC Noise Reduction

Applications

• LIN bus node implementation in automotive networks
• Low-power embedded control systems requiring non-volatile data storage
• Industrial monitoring applications utilizing internal temperature sensing
• Battery-operated devices leveraging low standby current consumption

Procurement Notes

Verify that the suffix MMUR corresponds to the specific 20-pin TSSOP package variant. Confirm the speed grade matches the required operating frequency for your target supply voltage. Ensure the industrial temperature rating aligns with environmental specifications. Cross-reference the datasheet revision to confirm feature compatibility.

Selection Notes

Select this component when 16 KB of program memory is required over the 8 KB variant. Choose this model for applications needing integrated LIN protocol support alongside standard UART functionality. Consider this part for designs requiring high-endurance EEPROM for frequent data logging. Evaluate the 16 MHz performance capability against power constraints.

Part Context

This device belongs to the ATtiny87/167 family, sharing identical hardware and software compatibility with the ATtiny87. The primary distinction lies in the Flash memory capacity, with the ATtiny167 offering double the storage. Both variants utilize the same AVR enhanced RISC core and peripheral set, ensuring code portability between the two models.

Replacement Considerations

ATtiny87-MMUR serves as a direct substitute if reduced program memory capacity is acceptable. Verify that the replacement part maintains the same package type and speed grade. Ensure firmware fits within the smaller memory footprint of the alternative device.