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ATTINY40-SUR
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Product Detailed Parameters
- Description：IC MCU 8BIT 4KB FLASH 20SOIC
- Series：AVR® ATtiny
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT),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-SOIC
- Package / Case：20-SOIC (0.295", 7.50mm Width)
- Grade：-
- Qualification：-
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Overview
The ATtiny40-SUR is an 8-bit AVR microcontroller featuring 4K bytes of in-system programmable Flash, 256 bytes of SRAM, and 18 programmable I/O lines. It operates at speeds up to 12 MHz with a supply voltage range of 1.8V to 5.5V. The device includes a 10-bit ADC with 12 single-ended channels, two timer/counters, and SPI/TWI interfaces. It is housed in a 20-lead TSSOP package and supports industrial temperature ranges.
Feature Summary
- Compact RISC architecture executing most instructions in a single clock cycle for high throughput.
- Integrated non-volatile memory with high endurance and long data retention capabilities.
- Multiple power-saving modes including Idle, Stand-by, and Power-down for optimized energy efficiency.
- On-chip analog comparator and programmable watchdog timer with separate oscillator.
Applications
- Battery-powered consumer electronics requiring low active current consumption.
- Industrial control systems utilizing the industrial temperature range and robust reset circuits.
- Sensor interface applications leveraging the 10-bit ADC and analog comparator features.
Procurement Notes
Verify the specific ordering suffix 'SUR' corresponds to the tape and reel packaging format as defined in the manufacturer's documentation. Confirm that the component meets RoHS compliance requirements and matches the specified speed grade and voltage operating range for your design constraints.
Selection Notes
Select this component when a balance of processing speed and low power consumption is required. The 12 MHz maximum frequency supports efficient code execution, while the wide voltage range allows flexibility in power supply design. Ensure the TSSOP package fits the available PCB real estate.
Part Context
This part belongs to the tinyAVR family, designed for cost-sensitive embedded applications. It utilizes Atmel's high-density non-volatile memory technology. The series emphasizes code efficiency and low power operation, making it suitable for replacing legacy 8-bit controllers in modern designs.
Replacement Considerations
Compatible replacements include ATtiny40-SU, ATtiny40-XU, and ATtiny40-XUR. Verify pin compatibility and software register mapping before substitution. Note that different packages may require layout adjustments.
