LC866420B

Ordering number : ENN*6699 CMOS IC LC866448B/44B/40B/36B/32B/28B/24B/20B/16B/12B/08B 8-Bit Single Chip Microcontroller Preliminary Overview The LC866448B/44B/40B/36B/32B/28B/24B/20B/16B/12B/08B 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 : 48K bytes - On-chip RAM Capacity : 1152/768/640/512 bytes (LC866448B/44B/40B/36B/32B/28B/24B/20B/16B/12B/08B) - 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 (1-channel × 16bit, 1-channel × 8bit) - 14-source 10-vectored interrupt system All of the above functions are fabricated on a single chip. Ver.1.05 O0499 91400 RM (IM) SK No.6699-1/21 LC866448B/44B/40B/36B/32B/28B/24B/20B/16B/12B/08B Features (1) Read-Only Memory (ROM) : LC866448B 49152 × 8 bits : LC866444B 45056 × 8 bits : LC866440B 40960 × 8 bits : LC866436B 36864 × 8 bits : LC866432B 32768 × 8 bits : LC866428B 28672 × 8 bits : LC866424B 24576 × 8 bits : LC866420B 20480 × 8 bits : LC866416B 16384 × 8 bits : LC866412B 12288 × 8 bits : LC866408B 8192 × 8 bits (2) Random Access Memory (RAM) : LC866448B/44B/40B/36B 1152 × 8 bits : LC866432B/28B/24B 768 × 8 bits : LC866420B/16B 640 × 8 bits : LC866412B/08B 512 × 8 bits (3) Bus Cycle Time/Instruction Cycle Time The LC866448B/44B/40B/36B/32B/28B/24B/20B/16B/1...