AVR32DA28-I/SS

The AVR32DA28/32/48 microcontrollers of the AVR DA family are using the AVR CPU with hardware multiplier, running at up to 24 MHz, with 32 KB of Flash, 4 KB of SRAM, and 512B of EEPROM in 28-, 32- or 48- pin packages. The AVR DA family uses the latest technologies from Microchip Technology, with a flexible and lowpower architecture including Event System, intelligent analog features, advanced digital peripherals and Peripheral Touch Controller (PTC).

Key features

• Running at up to 24 MHz
• Single-cycle I/O access
• Two-level interrupt controller
• Two-cycle hardware multiplier
• Supply voltage range: 1.8V to 5.5V
• 32 KB In-System self-programmable Flash memory
• 512B EEPROM
• 4 KB SRAM
• 32B of user row in nonvolatile memory that can keep data during chip-erase and be programmed while the device is locked
• Write/erase endurance: Flash 10,000 cycles, EEPROM 100,000 cycles
• Data retention: 40 years at 55℃
• High-Precision internal high-frequency Oscillator with selectable frequency up to 24 MHz (OSCHF)
• Auto-tuning for improved internal oscillator accuracy
• Internal PLL up to 48 MHz for high-frequency operation of Timer/Counter type D (PLL)
• 32.768 kHz Ultra-Low Power internal oscillator (OSC32K)
• 32.768 kHz external crystal oscillator (XOSC32K)
• External clock input
• Single-pin Unified Program and Debug Interface (UPDI)
• Three sleep modes: Idle with all peripherals running for immediate wake-up, Standby with a configurable operation of selected peripherals, Power-Down with full data retention
• Up to two 16-bit Timer/Counter type A (TCA) with a dedicated period register and three PWM channels
• Up to four 16-bit Timer/Counter type B (TCB) with input capture and simple PWM functionality
• One 12-bit Timer/Counter type D (TCD) optimized for power control
• One 16-bit Real-Time Counter (RTC) running from an external crystal or internal oscillator
• Up to five USART with fractional baud rate generator, auto-baud, and start-of-frame detection
• Two host/client Serial Peripheral Interface (SPI)
• Up to two Two-Wire Interface (TWI) with dual address match, Independent host and client operation (Dual mode), Philips I²C compatible: Standard mode (Sm, 100 kHz), Fast mode (Fm, 400 kHz), Fast mode plus (Fm+, 1 MHz)
• Event System for CPU independent and predictable inter-peripheral signaling
• Configurable Custom Logic (CCL) with up to six programmable Look-up Tables (LUT)
• One 12-bit differential 130 ksps Analog-to-Digital Converter (ADC)
• Three Analog Comparators (ACs) with window compare functions
• One 10-bit Digital-to-Analog Converter (DAC)
• Up to two Zero-Cross Detectors (ZCD)
• Peripheral Touch Controller (PTC) with Driven Shield + and Boost Mode technologies for capacitive touch buttons, sliders, wheels and 2D surface, Up to 32 self-capacitance and 256 mutual capacitance channels
• Automated Cyclic Redundancy Check (CRC) Flash memory scan
• Watchdog Timer (WDT) with Window mode, with a separate on-chip oscillator
• External interrupt on all general purpose pins
• Up to 41 programmable I/O pins
• Temperature Ranges: Industrial: -40℃ to +85℃, Extended: -40℃ to +125℃