Overview

The LC87F6AC8A is an 8-bit microcontroller that, centered around a CPU running at a minimum bus cycle time of 83.3

ns, integrates on a single chip a number of hardware features such as 128K-byte flash ROM (onboard programmable),

4096-byte RAM, on-chip debugging function, a vacuum fluorescent display (VFD) automatic display controller/driver,

a 16-bit timer/counter (may be divided into 8-bit timers), a 16-bit timer/counter (may be divided into 8-bit timer/counter

or 8-bit PWMs), four 8-bit timers with a prescaler, a 16-bit timer with a prescaler (may be divided into 8-bit timers), a

base timer used as a time-of-day clock, a high-speed clock counter, a system clock frequency divider, two synchronous

SIO* with automatic transfer capability, an asynchronous/synchronous SIO, two channels of 12-bit PWM modules*, an

8-bit 15-channel AD converter, a small signal detector, and a 27-source 10-vector interrupt feature*.

(* can be supported with the LC876A00 or LC876B00 series by selecting “User Options.”)

Features

„Flash ROM

• Capable of onboard programming with a single 5V power supply

• On-chip debugging function

• Block erasable in 128-byte units

• 131072 × 8 bits

„RAM

• 4096 × 9 bits

„Minimum bus cycle time

• 83.3s (at 12 MHz) VDD = 2.8 to 5.5[V]

• 250ns (at 4 MHz) VDD = 2.5 to 5.5[V]

Note: The bus cycle time refers to the ROM read speed.

„Minimum instruction cycle time (Tcyc)

• 249.9ns (at 12 MHz) VDD = 2.8 to 5.5[V]

• 750ns (at 4 MHz) VDD = 2.5 to 5.5[V]

„Package form

• QIP100E (lead/Halogen free type)