AVR64DA28-I/SO Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip AVR64DA28-I/SO is an 8-bit AVR microcontroller with 64 KB Flash, 24 MHz maximum clock, and 28-pin SOIC package for cost-effective embedded control. It integrates ADC, DAC, and multiple serial interfaces for versatile sensor and communication applications. Available worldwide with fast shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- AVR64DA28-I/SO Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1600(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 64 KB Flash program memory providing generous code storage for complex 8-bit AVR embedded firmware
- 24 MHz maximum CPU clock enabling responsive real-time control in sensor and communication applications
- Built-in ADC and DAC supporting analog signal acquisition and generation without external converter components
- 28-pin SOIC package with 7.5 mm body width suitable for both automated SMT and manual PCB assembly
- Multiple serial interfaces (UART, SPI, I2C) enabling flexible connectivity to sensors, displays, and wireless modules
Applications
The AVR64DA28-I/SO is suited for industrial sensor interfaces, building automation nodes, and consumer appliance controllers that require 8-bit AVR processing with integrated analog peripherals in a standard 28-pin SOIC package. Its 64 KB Flash provides room for communication stacks and application logic in a single-chip design running from a 1.8 V to 5.5 V supply. The built-in DAC also enables signal generation for audio feedback, reference voltage output, or closed-loop actuator control without additional external ICs.
Specifications
| Manufacturer Package Code | SOIC-28 |
| Factory Lead Time | 5Weeks |
| YTEOL | 19 |
| Has ADC | YES |
| Bit Size | 8 |
| Boundary Scan | NO |
| CPU Family | AVR |
| Clock Frequency-Max | 24MHz |
| DAC Channels | YES |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | NO |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of External Interrupts | 23 |
| Number of I/O Lines | 23 |
| Number of Serial I/Os | 1 |
| Number of Timers | 5 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP28,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| RAM (bytes) | 8192 |
| ROM (words) | 65536 |
| ROM Programmability | FLASH |
| Speed | 24MHz |
| Supply Current-Max | 5.3mA |
| Supply Voltage-Max | 5.5V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for AVR64DA28-I/SO:
RISC Microcontroller, 8-Bit, FLASH, AVR CPU, 24MHz, CMOS, PDSO28
Frequently Asked Questions
What memory and clock resources does the AVR64DA28-I/SO offer for an 8-bit control application?
The AVR64DA28-I/SO provides 64 KB of Flash program memory and runs at up to 24 MHz, offering a combination that supports UART-based communication stacks, sensor polling loops, and PID control algorithms within a single 8-bit device. The AVR architecture executes most instructions in 1 clock cycle, so 24 MHz yields effective throughput comparable to many lower-frequency 32-bit MCUs for simple control tasks.
How does the integrated DAC on the AVR64DA28-I/SO reduce external component count?
The built-in DAC on the AVR64DA28-I/SO generates analog output voltages without requiring a discrete external DAC chip, reducing BOM cost and PCB area. This is particularly useful in sensor conditioning circuits, audio alert generators, and closed-loop actuator drivers operating from the 1.8 V to 5.5 V supply range supported by the 28-pin SOIC device.
Which serial interfaces does the AVR64DA28-I/SO support and what connectivity do they enable?
The AVR64DA28-I/SO integrates UART, SPI, and I2C serial communication peripherals, enabling connections to environmental sensors, OLED displays, and wireless transceivers such as Bluetooth or LoRa modules. Running at 24 MHz, the MCU can handle multiple simultaneous serial streams and still leave cycles for application processing on a 28-pin SOIC board.
When is the AVR64DA28-I/SO a practical lower-cost alternative to a 32-bit MCU for a new design?
The AVR64DA28-I/SO is a practical alternative to a 32-bit MCU when the application fits within 8-bit arithmetic, requires fewer than 28 I/O pins, and prioritizes a simple development toolchain with Arduino-compatible AVR libraries. Its 64 KB Flash and 24 MHz clock handle most appliance, HVAC, and industrial sensor tasks at a lower unit cost and with a smaller 28-pin SOIC footprint than most 32-bit alternatives.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.4500 | $1.45 |
| 27+ | $1.3500 | $36.45 |
| 100+ | $1.2100 | $121.00 |
| 200+ | $1.1900 | $238.00 |
| 400+ | $1.1700 | $468.00 |
| 1000+ | $1.1600 | $1160.00 |
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