UPD17933 Datasheet, PDF (1/252 Pages) NEC – 4-BIT SINGLE-CHIP MICROCONTROLLERS WITH DIGITAL TUNING SYSTEM HARDWARE

DATA SHEET
MOS INTEGRATED CIRCUIT
µ PD17933, 17934
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 PLL frequency synthesizer, an intermediate frequency (IF) counter, and an LCD controller/driver on a single
chip.
Therefore, a high-performance digital tuning system for a portable set can be organized with a single chip.
FEATURES
• Program memory (ROM)
µPD17933
: 12K bytes (6144 × 16 bits)
µPD17934
: 16K bytes (8192 × 16 bits)
• General-purpose data memory (RAM) )
448 × 4 bits
• Instruction execution time
53.3 µs (with 75-kHz crystal resonator)
• PLL frequency synthesizer
Dual modulus prescaler (220 MHz MAX.),
programmable divider, phase comparator,
charge pump
• Peripheral hardware
General-purpose I/O ports, LCD controller/driver,
serial interface, A/D converter, BEEP output,
frequency counter
• Interrupt
External: 1 source
Internal : 3 sources
• Reset by RESET pin
• Low power consumption
• Supply voltage: VDD = 1.05 to 1.8 V
ORDERING INFORMATION
Part Number
µPD17933GK-×××-BE9
µPD17934GK-×××-BE9
Package
80-pin plastic TQFP (12 × 12 mm, 0.5 mm pitch)
80-pin plastic TQFP (12 × 12 mm, 0.5 mm pitch)
Remark ××× indicates ROM code suffix.
Unless otherwise specified, the µPD17934 is explained as the representative model in this document.
The information in this document is subject to change without notice.
Document No. U11947EJ2V0DS00 (2nd edition)
The mark shows major revised points.
Date Published July 1998 N CP(K)
Printed in Japan
©
1997