LC651204N

LC651204N is a kind of single-chip 4-bit microcomputer. The typical applications include audio equipment (tape deck, player, etc), office equipment, communications equipment, car equipment, home appliances as well as circuits so far formed with the standard logic circuits and applications where the number of controls is small.

There are some features of LC651204N as follows. First is fabricated in a CMOS process for low-power (an instruction-controlled standby function is provided). The second is wide power supply voltage range from 2.5 V to 5.5 V (L version). Then is instruction cycle time of 0.92s (F version). Next is on-chip serial I/O circuit. The fifth is stack level which is 8 levels (common wide interrupt). The sixth is timer which is 4-bit prescaler plus 8-bit programmable timers. The seventh is clock oscillator options to match application system specifications. The eighth is highly flexible I/O port. The ninth is watchdog timer. At last, it supports continuous output of a square wave signal (with a period 64 times the cycle time).

What comes next is the absolute maximum ratings of LC651204N at Ta=25, VSS=0 V. The VDD max (maximum supply voltage) is from -0.3 to +7.0 V for VDD pin. The VO (output voltage) is allowable up to voltage generated for OSC2 pin. The VI(1) (input voltage) is from -0.3 to VDD+0.3 V for OSC1 pin. The VI(2) (input voltage) is from -0.3 to VDD+0.3 V for pins TEST, RES, AV+, AV-. The IOP (peak output current) is from -2 to +20 mA for I/O port. The IOA (average output current) is -2 to +20 mA per pin over the period of 100 ms. The Pd max (allowable power dissipation) is 250 mW at Ta=-40 to +85 for DIP package and 150 mW for MFP package. The Topg (operating temperature) is from -40 to +85. The Tstg (storage temperature) is from -55 to +125.