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ATTINY40-XUR
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Product Detailed Parameters
- Description：IC MCU 8BIT 4KB FLASH 20TSSOP
- Series：AVR® ATtiny
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Core Processor：AVR
- Core Size：8-Bit
- Speed：12MHz
- Connectivity：I2C, SPI
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：18
- Program Memory Size：4KB (2K x 16)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：256 x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
- Data Converters：A/D 12x10b
- 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：-
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Overview
The ATtiny40-XUR is an 8-bit AVR microcontroller featuring 4K bytes of in-system programmable Flash and 256 bytes of SRAM. It operates at up to 12 MHz within a 1.8V to 5.5V supply range. The device includes one 8-bit Timer/Counter with two PWM channels, one 8/16-bit Timer/Counter, a 10-bit ADC with twelve single-ended channels, and an on-chip analog comparator. Communication interfaces include Master/Slave SPI and Slave TWI. It utilizes a 20-lead TSSOP package (20X) with matte tin finish.
Feature Summary
- Advanced RISC architecture executing most instructions in a single clock cycle for high throughput.
- Non-volatile memory supporting 10,000 Flash write/erase cycles with extended data retention.
- Integrated peripheral set including dual timers, 10-bit ADC, analog comparator, and serial interfaces.
- Four software-selectable power-saving modes including Idle, Stand-by, and Power-down.
Applications
- Battery-powered embedded systems requiring low active current consumption
- Industrial control applications utilizing the industrial temperature range
- Touch sensing interfaces supported by QTouch Library integration
Procurement Notes
Verify the ordering suffix 'U' indicates a matte tin lead finish as specified in the manufacturer's documentation. Confirm the 'R' suffix corresponds to tape and reel packaging requirements. Ensure the selected speed grade matches the operational voltage and temperature constraints defined in the datasheet tables.
Selection Notes
Select this component for designs requiring a compact 8-bit AVR core with integrated analog peripherals. Consider the 12MHz maximum frequency relative to the 1.8V minimum supply voltage. Evaluate the 20-pin TSSOP footprint against available PCB space. Verify compatibility with existing development tools and macro assemblers.
Part Context
This device belongs to the tinyAVR family manufactured using high-density non-volatile memory technology. It supports in-system programming via standard non-volatile memory programmers. The product line includes variants with different packages such as SOIC and VQFN, offering flexibility for various form factors while maintaining core architectural consistency.
Replacement Considerations
ATtiny40-SU: Same electrical specifications in SOIC package. ATtiny40-XU: Same electrical specifications in TSSOP package without tape and reel. ATtiny40-MMH: Same electrical specifications in VQFN package.
