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ATTINY44A-SSU
+BOMIC MCU 8BIT 4KB FLASH 14SOIC
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ManufacturerMicrochip Technology
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Mfr. Part #ATTINY44A-SSU
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Datasheet ATTINY44A-SSU DataSheet
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Package SOIC-14
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In Stock7059
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Specifications
| Attribute | Value |
| Package / Case | Tube |
| Series | AVR® ATtiny |
| Part Status | Active |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | USI |
| Peripherals | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT |
| Number of I/O | 12 |
| Program Memory Size | 4KB (2K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 256 x 8 |
| RAM Size | 256 x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
Overview
Description
- 4KB Flash memory, 256B EEPROM, and 256B SRAM.
- 12 general-purpose I/O pins, including 8-channel 10-bit ADC and hardware USART/SPI/I2C for communication.
- 20MHz max clock speed (internal or external oscillator).
- Operating voltage: 1.8V–5.5V, making it suitable for battery-powered applications.
- Packaged in a 14-pin SOIC (SSU), compact for space-constrained designs.
Ideal for embedded projects requiring cost-efficiency, minimal power consumption, and moderate processing (e.g., sensors, DIY electronics). Its small footprint and robust peripheral set make it a versatile choice for simple control tasks.
Equivalent
- ATTINY24A-SSU (lower memory, same package)
- ATTINY84A-SSU (higher memory, same package)
- ATTINY44V-10SSU (lower voltage variant)
- ATTINY44-SSU (older version, similar specs)
Alternatives from other brands:
- PIC12F683 (Microchip, similar 8-bit MCU)
- STM8S003F3 (STMicro, comparable features)
All are 8-bit microcontrollers in SSOP-14 package. Choose based on required specs.
Features
- CPU: 8-bit AVR, up to 20 MHz clock speed.
- Memory: 4 KB Flash, 256 B SRAM, 256 B EEPROM.
- I/O Pins: 12 programmable I/O (6 on Port A, 6 on Port B).
- Analog Features: 8-channel 10-bit ADC, analog comparator.
- Timers: Two 8-bit timers (with PWM) and one 16-bit timer.
- Communication: USART, SPI, I²C (TWI).
- Power Efficiency: 1.8V–5.5V operating range, multiple sleep modes.
- Package: 14-pin SOIC (SSU).
- Debugging: PDI (Program and Debug Interface).
Ideal for compact, low-power embedded applications.
Pinout
Pin Count: 14 (SOIC package)
Key Functions:
- VCC (Pin 1) & GND (Pin 14): Power supply (1.8–5.5V).
- Port A (PA0–PA7, Pins 2–9): 8-bit I/O with ADC, PWM, and interrupt support.
- Port B (PB0–PB3, Pins 10–13): 4-bit I/O with USI (SPI/I²C) and reset (PB3).
- RESET (Pin 4, PB3): Active-low reset (can be disabled).
- XTAL (Pins 5–6, PB0–PB1): External crystal oscillator (up to 20MHz).
Features:
- 4KB Flash, 256B SRAM, 256B EEPROM.
- 10-bit ADC, PWM, USI (SPI/I²C).
- Low-power sleep modes.
Compact and versatile for embedded applications.
Application
- Embedded Systems: Small-scale control tasks in appliances, toys, and DIY projects.
- IoT Devices: Sensor nodes, wearables, and smart home gadgets due to its low power consumption.
- Industrial Automation: Simple motor control, timers, and monitoring systems.
- Consumer Electronics: Remote controls, LED drivers, and battery-powered devices.
- Hobbyist Projects: Arduino-compatible boards (e.g., Trinket, Digispark).
Its small size (SSOP package), 12 GPIOs, ADC, and PWM support make it versatile for space-constrained designs.
