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Product Detailed Parameters
- Description：IC MCU 8BIT 128KB FLASH 32TQFP
- Series：AVR® DB
- Mfr：Microchip Technology
- Package：Tape & Reel (TR),Cut Tape (CT)
- Core Processor：AVR
- Core Size：8-Bit
- Speed：24MHz
- Connectivity：I2C, SPI, UART/USART
- Peripherals：Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O：27
- Program Memory Size：128KB (128K x 8)
- Program Memory Type：FLASH
- EEPROM Size：-
- RAM Size：16K x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
- Data Converters：A/D 14x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：32-TQFP (7x7)
- Package / Case：32-TQFP
- Grade：-
- Qualification：-
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Overview
The AVR128DB32T-I/PT is an 8-bit microcontroller from the AVR DB family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 128 KB of Flash memory, 16 KB of SRAM, and 512 bytes of EEPROM. The device operates within a supply voltage range of 1.8 V to 5.5 V and supports industrial temperatures from -40°C to +85°C. Key peripherals include a 12-bit ADC, 10-bit DAC, three analog comparators, and multiple timers. It utilizes a TQFP-32 package.
Feature Summary
- Features Multi-Voltage I/O (MVIO) on Port C for flexible logic level interfacing.
- Includes an Event System for CPU-independent peripheral signaling.
- Integrates Analog Signal Conditioning with up to three op amps and internal resistor ladders.
- Supports automated CRC scanning for Flash program memory integrity.
Applications
- Industrial control systems requiring robust signal conditioning
- Smart energy metering applications
- Low-power sensor nodes utilizing event-driven architectures
Procurement Notes
Verify the specific suffix 'I/PT' corresponds to the Industrial temperature range (-40°C to +85°C) and TQFP-32 package. Confirm that the ordering code matches the exact pin count and memory configuration required for your design. Cross-reference the datasheet revision date to ensure compatibility with any errata or updated electrical specifications.
Selection Notes
Select this component when vertical migration within the AVR DB family is needed without code modification. It is suitable for designs requiring high-precision analog subsystems and multi-voltage I/O capabilities. Consider the 24 MHz clock speed and available timer configurations for real-time processing requirements.
Part Context
This part belongs to the AVR128DB28/32/48/64 series, which shares full pin and feature compatibility for vertical migration. The 'AVR128DB32' designation indicates 128 KB Flash and a 32-pin package variant. The 'T' suffix denotes tape and reel packaging, while 'I' specifies the industrial temperature grade.
Replacement Considerations
AVR128DB48T-I/PT and AVR128DB64T-I/PT are compatible vertical upgrades offering higher pin counts. For lower pin count needs, verify feature availability in AVR128DB28T-I/PT. Ensure the replacement maintains the same package type if board space is constrained.
