LC877248A

Ordering number : ENN*6719 CMOS IC LC877264A/56A/48A 8-Bit Single Chip Microcontroller with 64/56/48 KB ROM and 2048-Byte RAM On Chip Preliminary Overview The LC877264A, LC877256A and LC877248A are 8 bit single chip microcontrollers with the following on-chip functional blocks : - CPU: operable at a minimum bus cycle time of 100 ns - On-chip ROM Maximum Capacity : LC877264A 64K bytes LC877256A 56K bytes LC877248A 48K bytes - On-chip RAM capacity: 2048 bytes - LCD controller / driver - 16 bit timer / counter (can be divided into two 8 bit timers) - 16 bit timer / PWM (can be divided into two 8 bit timers) - Timer for use as date / time clock - Synchronous serial I/O port (with automatic block transmit / receive function) - Asynchronous / synchronous serial I/O port - 12-channel × 8-bit AD converter - Small signal detector - 14-source 10-vectored interrupt system All of the above functions are fabricated on a single chip. Ver.1.04 70899 91400 RM (IM) SK No.6719-1/24 LC877264A/56A/48A Features (1) Read-Only Memory (ROM) - 65536 × 8bits (LC877264A) - 57344 × 8bits (LC877256A) - 49152 × 8bits (LC877248A) (2) Random Access Memory (RAM): 2048 × 9 bits (LC877264A, LC877256A, LC877248A) (3) Minimum Bus Cycle Time: 100 ns (10 MHz) Note: The bus cycle time indicates ROM read time. (4) Minimum Instruction Cycle Time: 300 ns (10MHz) (5) Ports - Input/output ports Data direction programmable for each bit individually : 26 (P1n, P30-P35, P70-P73, P8n) Data direction programmable in ni...