UPD17708

DATA SHEET MOS INTEGRATED CIRCUIT µ PD17704, 17705, 17707, 17708, 17709 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DEDICATED HARDWARE FOR DIGITAL TUNING SYSTEM The µ PD17704, 17705, 17707, 17708, and 17709 are 4-bit single-chip CMOS microcontrollers containing hardware for digital tuning systems. Provided with a wealth of hardware, these microcontrollers are available in many variations of ROM and RAM capacities to support various applications. Therefore, a high-performance, multi-function digital tuning system can be configured with only one chip. In addition, a one-time PROM model, µ PD17P709, which can be written only once and therefore is ideal for program evaluation and small-scale production of a µ PD17704, 17705, 17707, 17708, or 17709 system, is also available. FEATURES µ PD17704 Program memory (ROM) 16K bytes (8192 × 16 bits) 672 × 4 bits µ PD17705 24K bytes (12288 × 16 bits) µ PD17707 µ PD17708 32K bytes (16384 × 16 bits) µ PD17709 General Purpose data memory (RAM) 1120 × 4 bits 1776 × 4 bits Instruction execution time 1.78 µ s (with f X = 4.5-MHz crystal oscillator) PLL frequency synthesizer Dual modulus prescaler (130 MHz MAX.), programmable divider, phase comparator, charge pump Abundant peripheral hardware units General-purpose I/O ports, serial interfaces, A/D converter, D/A converter (PWM output), BEEP output, frequency counter Many interrupts External Internal : 6 sources : 6 sources Power-ON reset, CE reset, and power failure detection c...