MTP805,pdf datasheet (Embedded

The MTP805 micro-controller is an 8051 CPU core embedded device specially tailored to USB/PS2 Keyboard/Mouse applications. It includes an 8051 CPU core, 256-byte SRAM, Low Speed USB Interface and an 8K-byte internal program Flash-ROM.

FEATURES
· 8051 core, 6MHz operating frequency.
· 256-byte RAM, 8K-byte program Flash-ROM.
· Compliant with Low Speed USB Spec.1.1 including 3 Endpoints: one is Control endpoint (8-byte IN & 8-
byte OUT FIFOs), the other two are Interrupt endpoints (8-byte IN FIFOs).
· Built-in 3.3V regulator for USB Interface.
· Suspend / Resume operation.
· Idle and Power down mode wake-up by interrupt.
· 8 dedicated Key scan input pins and 18/19 Key scan output pins.
· Built-in low power reset circuit and Watchdog timer.
· PS2 compatible mouse interface.
· PS2 compatible keyboard interface share with USB interface.
· CPU clock can be double by S/W setting.
· 40-pin DIP, 42-pin SDIP or 44-pin PLCC package.