The maximum clock frequency is 12 MHz, but it can be overclocked up to 15 MHz with some limitations.
The typical current consumption in sleep mode is around 10 μA, but it can be as low as 2 μA depending on the configuration.
Yes, the P87LPC761BDH,112 is rated for operation in the industrial temperature range of -40°C to +85°C.
The P87LPC761BDH,112 has 2 kB of RAM and 8 kB of flash memory.
No, the P87LPC761BDH,112 does not have built-in support for USB. However, it can be implemented using bit-banging or with the help of an external USB controller.