Features: `16-character 1-line Dot Matrix VFD Controller Driver
`Serial Interface with Microprocessor
`Display Data RAM 16 x 8 bits : 16-character 1-line Display
`Character Generator ROM 8,400 bits : 240 Characters for 5 x 7 Dots
`Character Generator RAM 35 x 8 bits : 8 Patterns (5 x 7 Dots)
`Icon Display RAM 16 x 2 bits : Maximum 32 Icon
`VFD Driving Voltage | VDD-VFDP | 45V
Timing Signal : 16
Segment Signal : 35 (Except for Icon Segment Signal)
`Output Port for LED : 1
`Display ON/OFF Function
`Digit Scan Function
`Display Duty (Contrast Control) : 8-step (8/16 to 15/16)
`Character / Icon Shift Function
`Display Mode (9 to 16 Digits)
`Oscillation Circuit on-chip (External Resistor and Capacitor Required)
`Operating Voltage 3.0V to 5.5V (Except VFD Driving Voltage)
`Package Outline QFP 64
`C-MOS TechnologyPinout
Specifications
| P A R A M E T E R |
SYMBOL |
R A T I N G S |
UNIT |
C O N D I T I O N S |
| Supply Voltage (1) |
VDD |
- 0.3 to 6.5 |
V |
|
| Supply Voltage (2) |
VFDP |
-40 to VDD +0.3 |
V |
|
| Input Voltage |
VIN |
-40 to VDD +0.3 |
V |
|
| Power Dissipation |
PD |
800 |
mW |
Ta2 5 °C QFP-64 |
| Storage Temperature |
Tstg |
- 55 to 125 |
°C |
|
Operating
Temperature |
Topr |
- 40 to 85 |
°C |
|
| Output Current |
IO1 |
-40 |
mA |
T1 - T16 |
| IO2 |
-20 |
mA |
MK1 - MK2 |
| IO3 |
-10 |
mA |
S1 - S35 |
| IO4 |
-4.0 |
mA |
P1 ( LED drive is available ) |
| Total Output Current |
IOH |
-100 |
mA |
All Te minals at " H " leve l |
| IOL |
100 |
mA |
All Te minals at " L " leve l |
Note 1) If the LSI are used on condition above the absolute maximum ratings, the LSI may be destroyed. Using the LSI within electrical characteristics is strongly recommended for normal operation. Use beyond the electric haracteristics conditions will cause malfunction and poor reliability.
Note 2) Decoupling capacitor should be connected between VDD and VSS, VFDP and VSS due to the stabilized operation for the LSI.
Note 3) All voltage values are specified as VSS = 0V.
The relation : VDD > VSS, VDD > VSS ³ VFDP, VSS=0V must be maintained.
DescriptionThe NJU3430 is a Dot Matrix VFD (Vacuum Fluorescent Display) Controller Driver for 16-character 1-line with Icon displa
NJU3430 contains character generator ROM/RAM, address counter, oscillation circuit, command register, Icon display RAM, high voltage drivers, and serial interface circuit.
The display data of NJU3430 or the command data is transmitted with the serial interface circuits.
The character of NJU3430 generator consists of 8,400 bits ROM and 35 x 8 bits RAM. The CG RAM stores 8 kinds of character by 5 x 7dots maximum.
The 16-common and 37-segment (35 for character, 2 for icon) drivers of NJU3430 operated up to 45V drive the display of 16-character 1-line with 32- Icon.
Furthermore, the NJU3430 incorporates one Output port which drives the LED.
NJU3430 Data Sheet
