PVP9390A

General Description

The ePVP6200 is an 8-bit RISC type vacuum fluorescent display (VFD) controller equipped with low power consumption and high speed CMOS technology. This integrated single chip features on_chip watchdog timer (WDT), one time programming ROM (OTP), data RAM, programmable real time clock/counter, internal interrupt, power down mode, built-in four-wire SPI, IR detector, and high voltage output for VFD application.

Feature

CPU
■ Clock source： Crystal Oscillator
■ Crystal Oscillator (32.768KHz): with a external crystal
■ 8k x 13 on chip Program ROM.
■ 256 x 8 on chip data RAM
■ 144 x 8 general purpose registers
■ 16 level stack for subroutine nesting
■ 5 channel 8-bit counters: real time clock/counter (TCC) ,COUNTER1, COUNTER3,
COUNTER4, COUNTER5
■ 1 channel 16-bit counter: COUNTER2
■ On-chip watchdog timer (WDT)
■ 99.9％ single instruction cycle commands
■ Four operation modes
■ 12 interrupt source, 5 external (IR , INT1~INT4 ), 7 internal (SPI, TCC, COUNTER1~5)

SPI

■ Serial interface for Clock, Data Input, Data Output, and Strobe pins

GPIO

■ GPIO 9 Port(8 bit): general purpose input/output; LED output ;interrupt function
■ GPIO C Port(8 bit): general purpose input/output for switch and key scanning (12x4
matrix)

VFD

■ Multiple display modes (9-segment & 19-digit to 20-segment & 8-digit)
■ External resistor not necessary for driver outputs.(P-ch open-drain + pull- down resistor
output)

POR
2.0V voltage detector for Power-on reset

PACKAGE

52-pin QFP

Application

VFD controller