DESCRIPTION
The µPD17012 is a 4-bit single-chip CMOS microcontroller equipped with hardware for digital tuning systems.
The µPD17P012 is a version of the µPD17012 with one-time PROM instead of mask ROM.
The user can write programs to the µPD17P012 once, and it is ideal for experimental production of the µPD17012 during system design or small-scale production.

FEATURES
• 17K architecture: General-purpose register method
• Program memory (ROM)
µPD17012: Mask ROM
8 KB (4,096 × 16 bits)
µPD17P012: One-time PROM
8 KB (4,096 × 16 bits)
• General-purpose data memory (RAM) 316 × 4 bits
• Instruction execution time
   4.44 µs (with 4.5 MHz crystal resonator)
• Decimal operation
• Table reference
• Hardware for PLL frequency synthesizer
   Dual modulus prescaler (250 MHz max.), programmable divider, phase comparator, charge pump
• Various peripheral hardware
   General-purpose I/O ports, LCD controller/driver, serial interface, A/D converter, D/A converter (PWM output), BEEP output, frequency counter
• Interrupts
   External: 1
   Internal: 3
• Power-on-reset, reset by CE pin, and power failure detector
• Power-saving CMOS
• Supply voltage: VDD = 5 V ±10%