UPD17934 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD17934

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

NEC => Renesas Technology 

µPD17933, 17934

FUNCTIONAL OUTLINE

Part Number

Program memory (ROM)

General-purpose data memory (RAM)

Instruction execution time

General-purpose port

Stack level

Vector interrupt

(maskable interrupt)

Timer

A/D converter

LCD controller/driver

Serial interface

PLL frequency Division mode

synthesizer

Reference frequency

Charge pump

Phase comparator

Intermediate frequency (IF)

counter

BEEP output

Reset

Supply voltage

Package

µPD17933

µPD17934

12K bytes (6144 x 16 bits)

16K bytes (8192 x 16 bits)

448 × 4 bits

53.3 µs (with 75-MHz crystal oscillator)

37 pins

• I/O port : 20 pins

• Input port : 11 pins (of which 3 are muxed with LCD segment

pins)

• Output port : 6 pins

• Address stack : 15 levels (stack can be manipulated)

• Interrupt stack : 4 levels (stack can be manipulated)

• External : 1 source (INT)

• Internal : 3 sources (basic timer 0, 8-bit timer, serial interface)

3 channels

• Basic timer 0 (125 ms)

• Basic timer 1 (8 ms, 32 ms)

• 8-bit timer (with event counter)

8-bits resolution × 3 channels

• 20 segments, 4 commons

• 1/4 duty, 1/2 bias, frame frequency: 62.5 Hz, drive voltage VLCD1=3.0 V TYP.

• Muxed segment pins: 3 (Each can be used as general-purpose input port pin.)

1 channel (3-wire/2-wire modes selectable)

2 types • Direct division mode (VCOL pin)

• Pulse swallow mode (VCOL pin/VCOH pin)

6 types selectable (1, 3, 5, 6.25, 12.5, 25 kHz)

Error out output: 2 pins (EO0 and EO1 pins)

Unlock detectable by program

Frequency measurement

• AMIFC pin: 400 to 500 kHz

• FMIFC pin: 10 to 11 MHz

1 pin (1.5 kHz, 3 kHz)

• Reset by RESET pin

• Watchdog timer reset

Can be set only once on power application: 4096 or 8192 instructions

selectable

• Stack pointger overflow/underflow reset

Can be set only once on power application: Interrupt stack and address stack

selectable

VDD = 1.05 to 1.8 V

80-pin plastic TQFP (12 × 12 mm, 0.5 mm pitch)

2

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