Based on the 8-bit AVR core, the Atmel (Nasdaq: ATML) AT90USB82 and AT90USB162 feature a full-speed USB (12 Mbits/s) controller and have 8- and 16-Kbyte of Flash memory, respectively allowing in-system programming directly through their USB interface. On-chip EEPROM of 512 bytes allows for parameters settings without interfering with the application. The AVR microcontrollers are ideal for high-volume USB applications ranging from high-performance Human Interface Devices (HID) to wireless adaptors.
Communication with external components is ensured with SPI and UART interfaces. A 100 mA on-chip voltage regulator can also power companion devices such as laser sensors for high-performance mice or RF transceivers for wireless adapters.
The AT90USB82/162 are available in 32-pin packages including a tiny 5x5mm QFN. In addition, they offer an extensive 21 general-purpose IOs that can be used to detect interrupts. This is very effective for applications such as high-end mice or joysticks that have an increasing number of switches; unlike other market solutions that use multiplexing techniques or more expensive workarounds to overcome a limited number of interrupt pins.
Programming the AT90USB162′s Flash memory can be achieved in 0.5 seconds. The program can be loaded at the end of the manufacturing line without the need for a dedicated connector to accommodate in-system programming, which lower costs and proves invaluable when space is a premium. This gives flexibility for concurrent engineering, OEM/ODM customization, or even to upgrade products by the end user.
The AT90USB162 is offered in 32-pin QFN and TQFP packages and the AT90USB82 in QFN. The AT90USB162 is available now while production of the AT90USB82 will start in 3Q-2007. AT90USB162 is available at $1.65 and AT90USB82 at $1.45 for 10k pieces.
More info: Atmel USB Controllers »