36 Outputs VFD Controller/Driver

Manufacturer's part number :


Manufacturer New Japan Radio

New Japan Radio

Description :

The NJU3427 is a 36-output VFD (Vacuum Fluorescent Display) controller/driver.

The NJU3427 consists of high-voltage driving circuit, Timing/ Segment driver select circuit, display data RAM (DDRAM), address counter, instruction register, reset circuit serial interface and oscillator.

The direct control from the MPU and high voltage drivers make the NJU3427 well suited for various VFD displays

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  • Display Capability From (20-Seg x16-Timing to 28-Seg x 4-Timing)
  • DR0 Pin (ISO1) (20mA(VDD=5V))
  • DR1~DR35 Pins (ISO2) (10mA(VDD=5V))
  • Segment and Timing Driver Configure (4 patterns)
  • High VFD Driving Voltage (VDD-VFDP =≤40V)
  • Programmable Display Duty Ratio (1/4, 1/8, 1/12 or 1/16)
  • Programmable Timing Signal Duty Ratio (2/16, 4/16, 6/16, 8/16, 10/16, 12/16, 14/16, 15/16)
  • Display ON/OFF
  • Display Data RAM (47x8 bits)
  • CR Oscillator (External CR and capable of clock input from outside)
  • Serial Data Transfer (Clock frequency: 2MHz Max.)
  • Logic Power Supply (3.0V / 5.0V)
  • C-MOS
  • Package Outline (QFP52-A2, LQFP52-H2)
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Type Segment Type  

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Display Size 20 segments 16 digits  
VDD 3 / 5V  
VOUT 45V  
Voltage Polarity Negative  
Key Scan No  
Package Outline QFP-52-A2