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Product Detailed Parameters
- Description：IC MCU 8BIT 128KB FLASH 32TQFP
- Series：AVR® DB
- Mfr：Microchip Technology
- Package：Tray
- 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 ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：32-TQFP (7x7)
- Package / Case：32-TQFP
- Grade：-
- Qualification：-
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Overview
The AVR128DB32-E/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 temperature ranges. Key peripherals include a 12-bit ADC, 10-bit DAC, multiple timers, and communication interfaces such as SPI, I2C, and USART.
Feature Summary
- Features multi-voltage I/O capabilities on Port C for flexible interfacing.
- Includes analog signal conditioning subsystems with op amps and comparators.
- Supports event-driven architecture for CPU-independent peripheral signaling.
Applications
- Industrial control systems requiring robust analog processing
- Smart sensor nodes utilizing low-power sleep modes
- Motor control applications leveraging PWM timer outputs
Procurement Notes
Verify the specific suffix 'E' against official Microchip documentation to confirm extended temperature range specifications. Ensure compatibility with existing PCB footprints for the TQFP-32 package. Cross-reference datasheet revisions to validate pinout consistency before finalizing procurement orders.
Selection Notes
Select this model when vertical migration within the AVR DB family is required without code modification. Consider the 32-pin form factor for space-constrained designs needing 26 programmable I/O pins. Evaluate the integrated analog subsystem if external signal conditioning components can be eliminated.
Part Context
This component belongs to the AVR128DB series, designed for next-generation embedded applications. It shares architectural similarities with other devices in the family, allowing for horizontal or vertical migration based on pin count and memory requirements while maintaining software compatibility.
Replacement Considerations
AVR128DB32-I/PT serves as a standard industrial grade alternative. Verify temperature range requirements to ensure the 'E' variant's extended rating is necessary or if the 'I' variant suffices for the application environment.
