LC865616A

Ordering number : ENN*6698 CMOS IC LC865632/28/24/20/16/12/08A 8-Bit Single Chip Microcontroller Preliminary Overview The LC865632A/28A/24A/20A/16A/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 (microsecond) - On-chip ROM maximum capacity : 32K bytes - On-chip RAM capacity : 640 bytes (LC865632A/28A/24A) : 512 bytes (LC865620A/16A/12A/08A) - 16-bit timer/counter (or two 8-bit timers) - 16-bit timer/ PWM (or two 8-bit timers) - 8-channel × 8-bit AD converter - Two 8-bit synchronous serial-interface circuits - 13-source 10-vectored interrupt system All of the above functions are fabricated on a single chip. Features (1) Read Only Memory (ROM) : LC865632A : LC865628A : LC865624A : LC865620A : LC865616A : LC865612A : LC865608A 32512 × 8 bits 28672 × 8 bits 24576 × 8 bits 20480 × 8 bits 16384 × 8 bits 12288 × 8 bits 8192 × 8 bits 640 × 8 bits 512 × 8 bits (2) Random Access Memory (RAM) : LC865632A/28A/24A : LC865620A/16A/12A/08A (3) Bus Cycle Time / Instruction Cycle Time The LC865632A/28A/24A/20A/16A/12A/08A are constructed to read ROM twice within one instruction cycle. It has 1.7 times more performance capability within the same instruction cycle compared to our 4-bit microcontrollers (LC66000 series). Bus cycle time indicates the speed to read ROM. Bus cycle time 0.5µs 2.0µs 3.75µs 91.5µs cycle time 1.0µs 4.0µs 7.5µs 183µs System clock oscillation Cerami...