ChipApex | Global Electronic Components Supplier
ATTINY261A-XU
Search Product
Search Post
— IC芯片 | 连接器 | 传感器 | 被动器件 —
Consult the customer manager about the wholesale price.
consultation hotline：86-132-6715-2157
email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.
Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.
Product Detailed Parameters
- Description：IC MCU 8BIT 2KB FLASH 20TSSOP
- Series：AVR® ATtiny
- Mfr：Atmel
- Package：Bulk
- 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：16
- Program Memory Size：2KB (1K x 16)
- Program Memory Type：FLASH
- EEPROM Size：128 x 8
- RAM Size：128 x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
- Data Converters：A/D 11x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-TSSOP
- Package / Case：20-TSSOP (0.173", 4.40mm Width)
- Grade：-
- Qualification：-
Download product information
Overview
The ATTINY261A-XU is an 8-bit AVR microcontroller featuring a 32-VQFN (5x5) package. It includes 2KB of in-system programmable Flash, 128 bytes of SRAM, and 128 bytes of EEPROM. The device supports operation up to 20MHz with a supply voltage range of 1.8V to 5.5V. Key peripherals include an 11-channel 10-bit ADC, two 8-bit timers/counters, and a USI interface.
Feature Summary
- Integrates an 11-channel 10-bit analog-to-digital converter with programmable gain amplifier for signal conditioning.
- Features a Universal Serial Interface (USI) supporting SPI, I2C, and 3-wire bus protocols.
- Includes two 8-bit timer/counters with capture, compare, and PWM capabilities.
- Provides internal RC oscillator calibration and low-voltage detection for system stability.
Applications
- Battery-powered embedded control systems
- Temperature sensing applications
- General-purpose I/O expansion modules
Procurement Notes
Verify the specific suffix 'XU' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints for the 32-VQFN form factor. Confirm that the 1.8V minimum operating voltage aligns with the target system power rails.
Selection Notes
Select this component when a compact 32-pin QFN footprint is required alongside high-resolution analog input capabilities. The wide voltage range supports both 3.3V and 5V logic systems. Consider the 20MHz speed limit for timing-critical applications requiring precise clock management.
Part Context
This part belongs to the ATtiny family of 8-bit RISC microcontrollers manufactured by Microchip Technology. It shares architectural similarities with the ATtiny26 but offers enhanced performance and extended voltage ranges suitable for modern low-power designs.
Replacement Considerations
Check for direct pin-compatible alternatives within the ATtiny series such as the ATTINY261A-MNR or ATTINY261A-SHU. Verify that any substitute maintains the same 32-VQFN package dimensions and electrical specifications.
