MICROCHIP AT90USB1287-MU

The Atmel AVR AT90USB64/128 is a low-power CMOS 8-bit microcontroller based on the Atmel AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the AT90USB64/128 achieves throughputs approaching 1MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

• High performance, low power 8-bit Microcontroller
• Advanced RISC architecture – 135 powerful instructions – most single clock cycle execution – 32x8 general purpose working registers – Fully static operation – Up to 16MIPS throughput at 16MHz – On-chip 2-cycle multiplier
• Non-volatile program and data memories – 64/128Kbytes of in-system self-programmable flash • Endurance: 100,000 write/erase cycles – Optional Boot Code section with independent lock bits • USB boot loader programmed by default in the factory • In-system programming by on-chip boot program hardware activated after reset • True read-while-write operation • All supplied parts are pre-programed with a default USB bootloader – 2K/4K (64K/128K flash version) bytes EEPROM • Endurance: 100,000 write/erase cycles – 4K/8K (64K/128K flash version) bytes internal SRAM – Up to 64Kbytes optional external memory space – Programming lock for software security
• JTAG (IEEE std. 1149.1 compliant) interface – Boundary-scan capabilities according to the JTAG standard – Extensive on-chip debug support – Programming of flash, EEPROM, fuses, and lock bits through the JTAG interface
• USB 2.0 full-speed/low-speed device and on-the-go module – Complies fully with: – Universal serial bus specification REV 2.0 – On-the-go supplement to the USB 2.0 specification rev 1.0 – Supports data transfer rates up to 12Mbit/s and 1.5Mbit/s
• USB full-speed/low speed device module with interrupt on transfer completion – Endpoint 0 for control transfers: up to 64-bytes – Six programmable endpoints with in or out directions and with bulk, interrupt or isochronous transfers – Configurable endpoints size up to 256bytes in double bank mode – Fully independent 832bytes USB DPRAM for endpoint memory allocation – Suspend/resume interrupts – Power-on reset and USB bus reset – 48MHz PLL for full-speed bus operation – USB bus disconnection on microcontroller request
• USB OTG reduced host: – Supports host negotiation protocol (HNP) and session request protocol (SRP) for OTG dual-role devices – Provide status and control signals for software implementation of HNP and SRP – Provides programmable times required for HNP and SRP
• Peripheral features – Two 8-bit timer/counters with separate prescaler and compare mode – Two 16-bit timer/counter with separate prescaler, compare- and capture mode – Real time counter with separate oscillator – Four 8-bit PWM channels – Six PWM channels with programmable resolution from 2 to 16 bits – Output compare modulator – 8-channels, 10-bit ADC – Programmable serial USART – Master/slave SPI serial interface – Byte oriented 2-wire serial interface – Programmable watchdog timer with separate on-chip oscillator – On-chip analog comparator – Interrupt and wake-up on pin change
• Special microcontroller features – Power-on reset and programmable brown-out detection – Internal calibrated oscillator – External and internal interrupt sources – Six sleep modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby
• I/O and packages – 48 programmable I/O lines – 64-lead TQFP and 64-lead QFN
• Operating voltages – 2.7 - 5.5V
• Operating temperature – Industrial (- 0℃ to +85℃)
• Maximum frequency – 8MHz at 2.7V - industrial range – 16MHz at 4.5V - industrial range