S1C63656

S1C63656 4-bit Single Chip Microcomputer ● ● ● Original Architecture Core CPU Low Current Consumption High Speed Operation in Low Voltage „ DESCRIPTION The S1C63656 is a microcomputer which has a high-performance 4-bit CPU S1C63000 as the core CPU, ROM (6,144 words × 13 bits), RAM (1,024 words × 4 bits), multiply-divide circuit, serial interface, watchdog timer, programmable timer, time base counters (2 systems), an LCD driver that can drive a maximum 38 segments × 4 commons, sound generator, R/f converter and stepping motor driver built-in. The S1C63656 features low current consumption, this makes it suitable for battery driven clocks and watches with temperature and humidity measurement functions. „ FEATURES OSC1 oscillation circuit OSC3 oscillation circuit 32.768 kHz (Typ.) crystal oscillation circuit 4 MHz (Max.) ceramic (2 MHz Max. when OSC3 is used as the R/f converter operating clock), 1.1 MHz (Typ.) CR oscillation circuit or not used (*1) Basic instruction: 46 types (411 instructions with all) Addressing mode: 8 types During operation at 32.768 kHz: 61 μsec 122 μsec 183 μsec During operation at 4 MHz: 0.5 μsec 1 μsec 1.5 μsec Code ROM: 6,144 words × 13 bits Data ROM: 1,024 words × 4 bits Data memory: 1,024 words × 4 bits Display memory: 48 words × 4 bits 8 bits (Pull-down resistors may be supplemented *1) 4 bits (It is possible to switch the 2 bits to special output *2) 8 bits (It is possible to switch the 4 bits to serial I/F input/output *2) 1 port (8-bit clock sy...