ATTINY44V-10SSU

Overview

The ATTINY44V-10SSU is an 8-bit AVR microcontroller featuring a 14-pin SOIC package. It includes 4 kB of In-System Programmable Flash, 256 bytes of EEPROM, and 256 bytes of SRAM. The device operates at frequencies up to 10 MHz with a supply voltage range of 1.8 V to 5.5 V. Key peripherals include an 8-channel 10-bit ADC, two timers/counters with PWM channels, a Universal Serial Interface, and an on-chip analog comparator.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle for high throughput efficiency.
• Non-volatile memory supports 10,000 write/erase cycles for Flash and 100,000 cycles for EEPROM.
• Integrated 10-bit Analog-to-Digital Converter with programmable gain stages for differential inputs.
• Supports multiple low-power sleep modes including Idle, ADC Noise Reduction, Standby, and Power-down.

Applications

• In-system programming via SPI interface
• Battery-powered devices requiring low active and standby current consumption
• Applications utilizing the debugWIRE on-chip debug system
• Systems requiring pin change interrupts on multiple I/O lines

Procurement Notes

Verify that the ordering suffix SSU corresponds to the 14-lead Plastic Gull Wing Small Outline Package (SOIC) as specified in the official Microchip ordering tables. Confirm the 'V' designation indicates the 1.8V–5.5V operating voltage range and the '10' speed grade matches the required 10 MHz maximum frequency. Ensure compliance with RoHS directives for lead-free and halide-free construction prior to integration.

Selection Notes

Select this component when a 14-pin surface-mount form factor is required alongside 4 kB of program memory. The 'V' variant is necessary if the design operates below 2.7 V, as standard ATtiny44 models require a minimum of 2.7 V. Consider the industrial temperature range (-40°C to +85°C) for environmental robustness. Verify that the 12 general-purpose I/O lines meet the interface requirements for the target application.

Part Context

This device belongs to the ATtiny24/44/84 family of 8-bit AVR microcontrollers manufactured by Microchip Technology. It shares the same core architecture and peripheral set as the ATtiny24V and ATtiny84V, differentiated primarily by its non-volatile memory capacities. The family utilizes Atmel's high-density non-volatile memory technology to enable flexible in-system reprogramming capabilities.

Replacement Considerations

ATtiny44V-10PU

FAQ

What is the function of the 'V' suffix in the part number?

The 'V' suffix indicates that the device supports an extended low-voltage operating range of 1.8 V to 5.5 V, whereas non-'V' variants typically require a minimum of 2.7 V.

How does the device handle data retention?

The internal memories are qualified to retain data for 20 years at 85°C or 100 years at 25°C without power.