UPD17072 Description
µPD17072 and 17073 are low-voltage 4-bit single-chip CMOS microcontrollers containing hardware ideal for organizing a digital tuning system. The CPU employs 17K architecture and can manipulate the data memory directly, perform arithmetic operations, and control peripheral hardware with a single instruction. All the instructions are 16-bit one-word instructions.
UPD17072 Key Features
- 17K architecture: general-purpose register system
- General-purpose data memory (RAM) 176 × 4 bits
- Instruction execution time 53.3 µs (with 75-kHz crystal resonator: normal operation) 106.6 µs (with 75-kHz crystal reson
- Decimal operation
- Table reference
- Hardware for PLL frequency synthesizer Dual modulus prescaler (230 MHz max.), programmable divider, phase parator, charg
- Various peripheral hardware General-purpose I/O ports, LCD controller/driver, serial interface, A/D converter, BEEP, int
- Many interrupts External: 1 channel Internal: 2 channels
- Power-ON reset, CE reset, and power failure detector
- CMOS low power consumption