S1C63657

S1C63657 CMOS 4-bit Single Chip Microcontroller ● ● ● ● ● High Performance 4-bit Core CPU S1C63000 LCD Driver (56 SEG × 8 COM) R/f Converter to Measure Temperature and Humidity Low Current Consumption Low Voltage Operation ■ DESCRIPTIONS The S1C63657 is a microcomputer which has a high-performance 4-bit CPU S1C63000 as the core CPU, ROM (8,192 words × 13 bits), RAM (1,024 words × 4 bits), multiply-divide circuit, watchdog timer, programmable timer, time base counter, an LCD driver that can drive a maximum 56 segments × 8 commons, sound generator and R/f converter built-in. The S1C63657 features low current consumption, this makes it suitable for battery driven portable equipment with R/f converter. ■ FEATURES ● Core CPU.................................................... 4-bit CMOS core CPU S1C63000 ● OSC1 oscillation circuit ............................ 32.768 kHz (Typ.) crystal oscillation circuit ● OSC3 oscillation circuit ............................ 4 MHz (Max.) ceramic (2 MHz Max. when OSC3 is used as the R/f converter operating clock) or 1.1 MHz (Typ.) CR oscillation circuit (∗1) ● Instruction set ........................................... Basic instruction: 46 types (411 instructions with all) Addressing mode: 8 types ● Instruction execution time........................ During operation at 32.768 kHz: 61 μsec 122 μsec 183 μsec During operation at 4 MHz: 0.5 μsec 1.0 μsec 1.5 μsec ● ROM capacity ............................................ Code ROM: 8,192 words × 1...