LC876564A

Ordering number : ENN*6716 CMOS IC LC876572A/64A 8-Bit Single Chip Microcontroller with 72/64 KB ROM and 2048-Byte RAM On Chip Preliminary Overview The LC876572A and LC876564A 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 : LC876572A 72K bytes LC876564A 64K bytes - On-chip RAM: 2048 bytes - VFD automatic display 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 - Weak signal detector - 15-source 10-vectored interrupt system All of the above functions are fabricated on a single chip. Features (1) Read-Only Memory (ROM): LC876572A LC876564A 73728 × 8 bits 65536 × 8 bits (2) Random Access Memory (RAM): LC876572A/64A 2048 × 9 bits (3) Minimum Bus Cycle Time: 100 ns (10 MHz) Note: The bus cycle time indicates ROM read time. Ver.1.05 12000 91400 RM (IM) SK No.6716-1/23 LC876572A/64A (4) Minimum Instruction Cycle Time: 300 ns (10MHz) (5) Ports - Input/output ports Data direction programmable for each bit individually : 20 (P1n, P70 to P73, P8n) - 15V withstand input/output ports Data direction programmable in nibble units : 8 (P0n) (When N-channel open drain output is...