AVR32DD28T-E/STX

The AVR32/16DD28/32 microcontrollers of the AVR® DD Family of microcontrollers are using the AVR® CPU with hardware multiplier running at clock speeds up to 24 MHz, with up to 32 KB of Flash, up to 4 KB of SRAM, and 256 bytes of EEPROM. The microcontrollers are available in 28- or 32-pin packages. The AVR DD Family uses the latest technologies from Microchip Technology, with a flexible and low-power architecture, including the Event System, intelligent analog features, and advanced digital peripherals.

Key features

• AVR® CPU
• 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
• Memories
• Up to 32 KB in-system self-programmable Flash memory
• 256B EEPROM
• Up to 4 KB SRAM
• 32B of user row in nonvolatile memory that can keep data during chip erase and can be programmed while the device is locked
• Write/erase endurance
• Flash 1,000 cycles
• EEPROM 100,000 cycles
• Data retention: 40 years at 55℃
• Clock options
• 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
• External high-frequency crystal oscillator (XOSCHF) with Clock Failure Detection
• 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
• 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
• Peripherals
• One 16-bit Timer/Counter type A (TCA) with three compare channels for PWM and waveform generation
• Three 16-bit Timer/Counter type B (TCB) with input capture and signal measurements
• One 12-bit PWM Timer/Counter type D (TCD) optimized for power control
• One 16-bit Real-Time Counter (RTC) that can run from an external crystal or internal oscillator
• Two USARTs
• Operation modes: RS-485, LIN client, host SPI, and IrDA
• Fractional baud rate generator, auto-baud, and start-of-frame detection
• One SPI with host/client operation modes
• One Two-Wire Interface (TWI) with dual address match
• Simultaneous host/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 four programmable Look-up Tables (LUTs)
• One 12-bit differential 130 ksps Analog-to-Digital Converter (ADC)
• One 10-bit Digital-to-Analog Converter (DAC)
• One Analog Comparator (AC)
• One Zero-Cross Detector (ZCD)
• Internal 1.024V, 2.048V, 2.500V and 4.096V voltage references, and external reference option (VRE)
• I/O and Packages
• Multi-Voltage I/O (MVIO) on I/O port C
• Selectable input voltage threshold
• Up to 27/26 programmable I/O pins
• 32-pin VQFN 5x5 mm and TQFP 7x7 mm
• 28-pin SPDIP, SSOP, SOIC and VQFN
• Temperature Ranges
• Industrial: -40℃ to +85℃
• Extended: -40℃ to +125℃