Microchip Technology AVR32DB28
The AVR32DB28/32/48 microcontrollers of the AVR® DB family of microcontrollers are using the AVR® CPU with hardware multiplier running at clock speeds up to 24 MHz. They come with 32 KB of Flash, 4 KB of SRAM, and 512 bytes of EEPROM. The microcontrollers are available in 28-, 32- and 48- pin packages.FEATURES
● AVR® CPU – Running at up to 24 MHz – Single-cycle I/O register access – Two-level interrupt controller – Two-cycle hardware multiplier – Supply voltage range: 1.8V to 5.5V● Memories – 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°C
● System – Power-on Reset (POR) circuit – Brown-out Detector (BOD) with user-programmable levels – Voltage Level Monitor (VLM) with interrupt at a programmable level above the BOD level – Clock failure detection – Clock options
● High-precision internal 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)
● Internal ultra-low power 32.768 k