The ATMEGA88-20AU is an 8-bit microcontroller from Atmel (now Microchip Technology). Below are its key specifications, descriptions, and features:
Specifications:
- Manufacturer: Atmel (Microchip Technology)
- Core: 8-bit AVR RISC
- Clock Speed: Up to 20 MHz (20AU variant)
- Flash Memory: 8 KB (4K x 16)
- SRAM: 1 KB
- EEPROM: 512 Bytes
- I/O Pins: 23
- ADC Channels: 6 (10-bit resolution)
- Timers: 2 x 8-bit, 1 x 16-bit
- PWM Channels: 4
- Communication Interfaces:
- USART (Universal Synchronous/Asynchronous Receiver/Transmitter)
- SPI (Serial Peripheral Interface)
- I²C (Two-Wire Interface)
- Operating Voltage: 1.8V - 5.5V
- Package: TQFP-32 (32-pin Thin Quad Flat Package)
- Operating Temperature: -40°C to +85°C
Descriptions:
- The ATmega88-20AU is a low-power, high-performance microcontroller based on the AVR enhanced RISC architecture.
- It executes most instructions in a single clock cycle, achieving throughputs up to 1 MIPS per MHz.
- Suitable for embedded control applications, including industrial, automotive, and consumer electronics.
- Supports In-System Programming (ISP) and Self-Programming (Bootloader) for flexible firmware updates.
Features:
- Advanced RISC Architecture (131 instructions, mostly single-cycle execution).
- Power-On Reset (POR) & Brown-Out Detection (BOD) for reliable operation.
- Internal RC Oscillator (8 MHz with calibration).
- Six Sleep Modes (Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby).
- Watchdog Timer (WDT) for system monitoring.
- Analog Comparator for signal comparison.
- JTAG & DebugWIRE support for debugging.
- Robust Peripheral Set (ADC, PWM, USART, SPI, I²C).
This microcontroller is widely used in embedded systems requiring efficient processing, low power consumption, and flexible I/O capabilities.