Overview The LC87F5VP6A is an 8-bit microcomputer that， centered around a CPU running at a minimum bus cycle time of 66.6 ns， integrate on a single chip a number of hardware features such as 256K-byte flash ROM （onboard rewritable）， 10240-byte RAM， Onchip debugging function， sophisticated 16-bit timers/counters （may be divided into 8-bit timers）， a 16-bit timer / counter （may be divided into 8-bit timers/counters or 8-bit PWMs）， four 8-bit timers with a prescaler， a base timer serving as a time-of-day clock， a high-speed clock counter， two synchronous SIO ports （with automatic block transmission / reception capabilities）， an asynchronous / synchronous SIO port， two UART ports （full duplex）， four 12-bit PWM channels， an 8-bit 15-channel AD converter， a system clock frequency divider， and a 29-source 10-vector interrupt feature.