The document mainly introduces the features of AVR® 8-Bit Microcontroller
The AT90USB162 is a low‑power 8‑bit AVR microcontroller with integrated USB 2.0 full‑speed functionality. It offers up to 16 MIPS throughput, 8 KB/16 KB of self‑programming flash, 512 B EEPROM, 512 B SRAM and 22 programmable I/O lines. The device supports multiple power‑saving modes and includes peripherals such as timers, USART, SPI, PS/2 pad and an on‑chip analog comparator.
The datasheet details the pinout, block diagram, electrical specifications, register map, code examples and known errata. It also lists package options (QFN32, TQFP32), operating voltage and temperature ranges, and USB performance parameters, helping designers integrate the microcontroller into embedded applications.
| Operating Voltage | 2.7‑5.5 V |
|---|---|
| Operating Temperature | -40 °C to +85 °C |
| Flash Memory | 8 KB / 16 KB |
| EEPROM | 512 Bytes |
| SRAM | 512 Bytes |
| Programmable I/O Lines | 22 |
| Maximum Frequency | 8 MHz @ 2.7 V, 16 MHz @ 4.5 V |
| Package Options | QFN32 (5×5 mm) / TQFP32 |
It provides 22 programmable I/O lines.
The microcontroller operates from 2.7 V to 5.5 V and is rated for industrial temperatures from –40 °C to +85 °C.
The AT90USB162 supports Idle, Power‑save, Power‑down, Standby and Extended Standby modes.