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.
Key Features
- 17K architecture: general-purpose register system
- Program memory (ROM) 6 KB (3072 × 16 bits): µPD17072 8 KB (4096 × 16 bits): µPD17073
- 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 resonator: low-speed mode)
- Decimal operation
- Hardware for PLL frequency synthesizer Dual modulus prescaler (230 MHz max.), programmable divider, phase comparator, charge pump
- Various peripheral hardware General-purpose I/O ports, LCD controller/driver, serial interface, A/D converter, BEEP, intermediate frequency (IF) counter
- Many interrupts External: 1 channel Internal: 2 channels
- Power-ON reset, CE reset, and power failure detector
- CMOS low power consumption
