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NJU3426 fiches techniques PDF

JRC - 16 segments 14 digits / QFP48-P1

Numéro de référence NJU3426
Description 16 segments 14 digits / QFP48-P1
Fabricant JRC 
Logo JRC 





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NJU3426 fiche technique
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NJU3426
16-SEGMENT X 14-Digit
VFD CONTROLLER / DRIVER
GENERAL DESCRIPTION
The NJU3426 is a VFD (Vacuum Fluorescent Display)
controller/driver to dynamically drive up to 16 segments x 14
digits. It consists of display data RAM, an address counter,
command registers, a serial interface and high voltage drivers.
The NJU3426 features the direct connection to MPU and the
high voltage drivers of 45V well-suited for various VFD
displays.
PACKAGE OUTLINE
NJU3426FP1
FEATURES
Directly Drives 16-segment x 14-digit
High VFD Driving Voltage
Display Shift Function
: |VDD-VFDP|45V
Programmable Duty Ratio for Timing Signal
:2/16, 4/16, 6/16, 8/16, 10/16, 12/16, 14/16, 15/16 duty
Display ON/OFF Control Function
Display Data RAM
: 30 x 8-bit
Built-in Oscillator (External Ceramic Resonator or External Resistor or External Clock)
8-bit Serial Interface
Power-ON Reset Function
Operating Voltage
: 3.3V / 5.0V
C-MOS Technology
Package Outline
:QFP48-P1
BLOCK DIAGRAM
S0 to S15
T0 to T13
VDD
VSS
VFDP
High Voltage Driver
Segment Data Latch
High Voltage Driver
Timing Counter
Display RAM
30 x8-bit
Duty
Counter
Timing
Counter
Instruction Decoder
OSC XT
XTb
SI
SCK Serial Buffer
CSb
REST
RSTb
Ver.2003-09-02
-1-

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