4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE

4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE The µPD17933 and 17934 are 4-bit single-chip CMOS microcontrollers with hardware for digital tuning systems (DTSs). These microcontrollers integrate a prescaler that operates at a voltage as low as 1.05 V and up to 220 MHz, a

MOS INTEGRATED CIRCUIT

FEATURES • Program memory (ROM) mPD17933 : 12K bytes (6144 ´ 16 bits) mPD17934 : 16K bytes (8192 ´ 16 bits) • General-purpose data memory (RAM) ) 448 ´ 4 bits • Instruction execution time 53.3 ms (with 75-kHz crystal resonator) • PLL frequency synthesizer Dual modulus prescaler (220 MHz M

4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE

4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE The µPD17933 and 17934 are 4-bit single-chip CMOS microcontrollers with hardware for digital tuning systems (DTSs). These microcontrollers integrate a prescaler that operates at a voltage as low as 1.05 V and up to 220 MHz, a