ATTINY102-M7R

Overview

The ATTINY102-M7R is an 8-bit AVR microcontroller featuring a 16MHz-capable RISC core with single-cycle execution. It integrates 1024 bytes of in-system programmable Flash, 32 bytes of SRAM, and six general-purpose I/O lines within an 8-pad UDFN package. The device supports a 10-bit ADC with five channels, a 16-bit Timer/Counter, and a USART module. Operating voltage ranges from 1.8V to 5.5V, supporting speeds up to 12MHz at 4.5V-5.5V. It functions across an industrial temperature range of -40°C to +105°C.

Feature Summary

• Advanced RISC architecture enabling high throughput with mostly single clock cycle instruction execution.
• Non-volatile memory with self-programming capabilities across the full operating voltage range.
• Integrated analog peripherals including a 10-bit ADC and on-chip Analog Comparator.
• Multiple low-power operational modes including Idle, ADC Noise Reduction, and Power-down.

Applications

• Battery-powered consumer electronics requiring extended data retention.
• Industrial control systems utilizing serial communication via USART.
• Sensor interface applications leveraging the internal 10-bit ADC.
• General-purpose embedded logic control using available timer/counters.

Procurement Notes

Verify the specific ordering suffix M7R confirms the 8-pad UDFN package and Industrial temperature rating (-40°C to +105°C). Ensure compatibility with existing PCB footprints for the Ultra Thin Dual Flat No-Lead form factor. Confirm that the selected speed grade aligns with the required system clock frequency and supply voltage constraints.

Selection Notes

Select this component when a compact 8-pin footprint is required alongside basic analog and serial connectivity. The ATtiny102 variant provides sufficient memory for simple control tasks while maintaining low power consumption. Consider the M7R suffix specifically for industrial environmental requirements rather than commercial or extended grades.

Part Context

This part belongs to the ATtiny102/ATtiny104 family based on the AVR enhanced RISC architecture. It shares core resources such as the 16-bit Timer/Counter and ADC with the 14-pin ATtiny104, but offers reduced I/O count due to the 8-pin package constraint. The series emphasizes code efficiency and low power operation for cost-sensitive embedded designs.

Replacement Considerations

The ATtiny102F-M7R serves as a direct functional substitute, distinguished by the inclusion of the fast start-up time option. Verify if the standard start-up delay meets system timing requirements before selecting the base model over the F-suffix variant.

FAQ

Does the thermal pad on the 8-pad UDFN package require connection?

No, the datasheet explicitly states that the thermal pad on the rear of the package should not be connected.

What is the maximum operating frequency supported at 1.8V?

At an operating voltage of 1.8V to 5.5V, the device supports a maximum frequency of 4MHz.

How many ADC channels are available on the 8-pin package?

The 8-pin package options, including the ATTINY102-M7R, provide five ADC channels.