Overview
The LC87F5N62B is an 8-bit microcomputer that, centered around a CPU running at a minimum bus cycle time of
83.3ns, integrate on a single chip a number of hardware features such as 66K-byte flash ROM (onboard rewritable),
2048byte 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.

Features
Flash ROM
• Capable of on-board-programing with wide range, 2.7 to 5.5V, of voltage source
• Block-erase in 128-byte units
• 67584 × 8 bits ( Address: 00000H to 0FFFFH, 1F800H to 1FFFFH)
RAM
• 2048 × 9 bits
Minimum Bus Cycle Time
• 83.3ns (12MHz) VDD=2.8 to 5.5V
• 125ns (8MHz) VDD=2.5 to 5.5V
• 500ns (2MHz) VDD=2.2 to 5.5V
Note: Bus cycle time indicates the speed to read ROM.