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Product Detailed Parameters
- Description：IC MCU 8BIT 64KB FLASH 28SPDIP
- Series：AVR® DA
- Mfr：Microchip Technology
- Package：Tube
- 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：23
- Program Memory Size：64KB (64K x 8)
- Program Memory Type：FLASH
- EEPROM Size：512 x 8
- RAM Size：8K x 8
- Voltage - Supply (Vcc/Vdd)：1.8V ~ 5.5V
- Data Converters：A/D 10x12b; D/A 1x10b
- Oscillator Type：Internal
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Through Hole
- Supplier Device Package：28-SPDIP
- Package / Case：28-DIP (0.300", 7.62mm)
- Grade：-
- Qualification：-
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Overview
The AVR64DA28-E/SP is an 8-bit microcontroller from the AVR DA(S) family, utilizing the AVR CPU with a hardware multiplier. It features 64 KB of Flash memory, 8 KB of SRAM, and 512 B of EEPROM. The device operates at a maximum frequency of 24 MHz and supports a supply voltage range of 1.8 V to 5.5 V. It includes a 12-bit differential ADC, a 10-bit DAC, three analog comparators, and a Peripheral Touch Controller. The component is housed in a 28-pin SPDIP package and is rated for extended temperature operation from -40°C to +125°C.
Feature Summary
- Supports vertical migration within the AVR DA(S) family without code modification due to full pin and feature compatibility.
- Integrates intelligent analog subsystems including a 12-bit differential ADC with programmable gain amplifier and a 10-bit DAC.
- Features a single-pin Unified Program and Debug Interface (UPDI) for programming and debugging operations.
- Includes a Peripheral Touch Controller (PTC) with Driven Shield+ technology for capacitive touch applications.
Applications
- Real-time control systems requiring low-power architecture
- Sensor nodes utilizing integrated analog peripherals
- Secondary security monitoring devices
Procurement Notes
Verify that the ordering suffix 'E' corresponds to the extended temperature range (-40°C to +125°C) and 'SP' indicates the SPDIP package style as defined in the official datasheet. Confirm the specific revision level of the document DS40002233C matches the required manufacturing batch specifications before finalizing procurement orders.
Selection Notes
Select this variant when extended industrial temperature performance is required alongside the 28-pin SPDIP form factor. Ensure the application utilizes the 24 MHz clock speed capabilities and leverages the 64 KB Flash capacity. Verify that the 8 KB SRAM meets the system's runtime data requirements and that the peripheral count aligns with the I/O multiplexing constraints of the 28-pin configuration.
Part Context
This component belongs to the AVR DA(S) family, which provides horizontal and vertical migration paths across different pin counts and memory sizes. The AVR64DA28 variant serves as the entry point for the 64 KB Flash segment in the 28-pin lineup, sharing architectural similarities with higher-capacity models while maintaining software compatibility.
Replacement Considerations
AVR64DA28-I/SP offers identical electrical and functional specifications but is rated for the industrial temperature range (-40°C to +85°C). Other family members such as AVR64DA32 or AVR64DA48 provide increased I/O and memory but require board layout adjustments due to different pin counts.
