NJU3430 データシートの表示（PDF） - Japan Radio Corporation

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NJU3430

16-CHARACTER 1-LINE DOT MATRIX VFD CONTROLLER DRIVER16-CHARACTER 1-LINE DOT MATRIX VFD CONTROLLER DRIVER

Japan Radio Corporation  

NJU3430

n Interface with MPU

The instruction and RAM data are input through the serial port. The data form is 8-bit per word, and data transfer

is performed by synchronizing clock. The shift clock is input from external, and the data is loaded at the rising

edge of the shift clock.

One time transfer is executed by 8-bit unit. The transfer period is from falling edge to rising of the CS signal from

external. Therefore, when the rising edge of the CS signal is input, the operation is started. When more than 8-bit

data is input, the last 8-bit data is valid.

The input data is judged as instruction or RAM data by the RS signal at the rising edge of the CS signal (RS=”H”

: RAM data, RS=”L” : Instruction). When the input data is RAM data, the RAM address is increased one by one

automatically after data writing.

CS

CLK

RS

SI

B7 B6 B5 B4 B3 B2 B1 B0

MSB

[For example]

DD RAM writing

LSB

1Byte

(Instruct ion)

Select the Address

B7 B6 B5 B4 B3 B2 B1 B0

MSB

LSB

2Byte

(Data)

Character Code Data

B7 B6 B5 B4 B3 B2 B1 B0

MSB

LSB

3Byte

(Data)

Character Code Data

of the Next Address

n ABSOLUTE MAXIMUM RATINGS

P A R A M E T E R SYMBOL

Supply Voltage (1)

V DD

Supply Voltage (2)

V FDP

Input Voltage

V IN

Power Dissipation

Storage Temperature

Operating

Temperature

PD

T stg

Topr

IO 1

IO 2

Output Current

IO 3

Total Output Current

IO 4

Σ IOH

Σ IO L

RATINGS

-0.3 to 6.5

-40 to V DD +0.3

-0.3 to V DD +0.3

800

-55 to 125

-40 to 85

-40

-20

-10

-4.0

-100

100

UNIT

V

V

V

mW

°C

°C

mA

mA

mA

mA

mA

mA

CONDITIONS

Ta ≤ 2 5 ° C Q F P - 6 4

T1 - T16

MK1 - MK2

S 1 - S 35

P1(LED drive is available)

All Terminals at "H" level

All Terminals at "L" level

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 characteristics 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 ≥ VFDP, VSS=0V must be maintained.

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