CXP858P56A Datasheet PDF - Sony Semiconductor

Description
The CXP858P56A is a CMOS 8-bit microcomputer which consists of A/D converter, serial interface, timer/counter, time-base timer, closed caption decoder, data slicer, on-screen display function, I2C bus interface, PWM output, remote control reception circuit, HSYNC counter and watchdog timer as well as basic configuration like 8-bit CPU, PROM, RAM and I/O port.
Also this IC provides a power-on reset function and sleep function that enables to lower power consumption.
The CXP858P56A is the PROM-incorporated version of the CXP85856A with built-in mask ROM. This provides the additional feature of being able to write directly into the program (also into the OSD character ROM or caption character ROM possible). Thus, it is most suitable for evaluation use during system development and for small-quantity production.