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Product Detailed Parameters
- Description：IC MCU 8BIT 64KB FLASH 28SPDIP
- Series：AVR® DB
- 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：21
- 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 9x12b; 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 AVR64DB28-E/SP is an 8-bit microcontroller from the AVR DB family, featuring a 24 MHz AVR CPU with hardware multiplier. It includes 64 KB Flash, 8 KB SRAM, and 512 B EEPROM. The device supports a supply voltage range of 1.8 V to 5.5 V and operates within an extended temperature range of -40°C to +125°C. Key peripherals include a 12-bit ADC with 13 channels, three analog comparators, one 10-bit DAC, and multiple communication interfaces such as USART, SPI, and TWI.
Feature Summary
- Features Multi-Voltage I/O (MVIO) on Port C for flexible voltage threshold selection.
- Includes an Analog Signal Conditioning peripheral with up to three op amps and internal resistor ladders.
- Supports automated cyclic redundancy check (CRC) scanning for Flash program memory integrity.
Applications
- Industrial control systems requiring robust signal conditioning
- Battery-powered devices needing low-power sleep modes
- Smart energy metering applications
Procurement Notes
Verify the ordering suffix 'E' confirms the extended temperature rating (-40°C to +125°C). Confirm the '/SP' suffix indicates the SPDIP-28 package style. Ensure compatibility with existing designs by checking pinout alignment against other AVR DB family members.
Selection Notes
Select this part for applications requiring high-performance analog subsystems alongside standard digital processing. The extended temperature grade suits harsh environments. Consider vertical migration within the DB family if future memory or pin count upgrades are anticipated without code modification.
Part Context
This component belongs to the AVR DB microcontroller family, which utilizes the latest Microchip technologies for flexible and low-power architectures. The family emphasizes vertical migration capabilities, allowing developers to scale memory and features across different pin counts while maintaining software compatibility.
Replacement Considerations
AVR64DB28-I/SP
FAQ
What does the 'E' in the model number signify?
The 'E' suffix denotes that the device is rated for an extended industrial temperature range of -40°C to +125°C.
Does the device support simultaneous host and client operation on TWI?
Yes, the TWI/I2C interface can operate simultaneously as a host and a client on different pins.
