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.As peripheral hardware, a prescaler that can operate at up to 230 MHz for a digital tuning system, a PLL frequency synthesizer, and an i.
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.
- Table reference.
- Hardware for PLL frequency synthesizer Dual modulus prescaler (230 MHz m.
