View lc875064b datasheet:

Ordering number : ENN*6714 CMOS IC LC875064B/56B/48B 8-Bit Single Chip Microcontroller with 64/56/48K-Byte EPROM and 2048-Byte RAM On Chip Preliminary Overview The LC875064B/56B/48B microcontroller is 8-bit single chip microcontroller with the following on-chip functional blocks: - CPU: Operable at a minimum bus cycle time of 100ns - 64K/56K/48K bytes ROM - 2048 byte RAM - two high performance 16 bit timer/counters (can be divided into 8 bit units) - two 8 bit timers with prescalers - timer for use as date/time clock - one synchronous serial I/O ports (with automatic block transmit/receive function) - one asynchronous/synchronous serial I/O port - 12-bit PWM ? 2 - 3-channel ? 8-bit AD converter - high speed 8-bit parallel interface - 16-source 10-vecto