NEC VR4100

The NEC V_R4100 series of CPUs are based on the MIPS R4000 core.

V_R4133

NEC VR4133

V_R4181A

The VR4181A (µPD30181A) is a 131 MHz 64-bit MIPS CPU that roughly implements the (MIPS III ISA, (without FPU, LL, and SC instructions) and MIPS16), plus interfaces for TFT/STN LCD display, dual CompactFlash, 3 UARTs, IrDA, I2C, 64 parallel I/O, RTC, watchdog timer, keyboard, USB, touch, audio I/O, and ISA-subset expansion bus.

Datasheets

Datasheets are available from NEC Electronics search page.

External links

• http://www.linuxdevices.com/products/PD2831532191.html More on the VR4181A
• http://www.necel.com/micro/english/product/vr/vr4100series/index.html Overview over the NEC VR4100 series
• http://www.eu.necel.com/docuweb/ NEC Document database