LC868016A

Ordering number : ENN*6723 CMOS IC LC868016/12/08A 8-Bit Single Chip Microcontroller with 16/12/08K-Byte ROM and 640-Byte RAM On Chip Preliminary Overview The LC868016A/12A/08A microcontrollers are 8-bit single chip microcontrollers with the following on-chip functional blocks : - CPU : Operable at a minimum bus cycle time of 0.5µs (microseconds) - On-chip ROM maximum capacity : 16K bytes - On-chip RAM capacity : 640 bytes - Dot-matrix liquid crystal display (LCD) automatic display controller / driver - External memory - 16-bit timer / counter (or two 8-bit timers) - 16-bit timer / PWM (or two 8-bit timers) - Two 8-bit synchronous serial-interface circuits - 13-source 9-vectored interrupt system All of the above functions are fabricated on a single chip. Ver.1.12 61298 91400 RM (IM) HO No.6723-1/28 LC868016/12/08A Features (1) Read Only Memory (ROM) : LC868016A : LC868012A : LC868008A 16384 × 8 bits 12288 × 8 bits 8192 × 8 bits (2) Random Access Memory (RAM) : 512 × 8 bits (calculation area) 128 × 8 bits (display area) (3) Bus Cycle Time / Instruction Cycle Time Bus cycle time 0.5µs 2.0µs 7.5µs 3.8µs 183µs 91.5 Instruction cycle time 1µs 4µs 15µs 7.5µs 366µs 183µs System clock oscillation Ceramic (CF) Ceramic (CF) Internal RC Crystal (XTAL) Oscillation frequency 12MHz 6MHz 3MHz 1.5MHz 800kHz 32.768kHz Voltage 4.5-6.0V 2.5-6.0V 2.5-6.0V 2.5-6.0V Note OCR7=0 OCR7=1 OCR7=0 OCR7=1 OCR7=0 OCR7=1 OCR7=0 OCR7=1 * Bus cycle time means ROM-read period. OCR7 : Bit-7 of the os...