NJU6657 データシートの表示（PDF） - Japan Radio Corporation

部品番号

コンポーネント説明

メーカー

NJU6657

88-common x 272-segment Bitmap LCD Driver

Japan Radio Corporation  

TERMINAL DISCRIPTION(Power Supply)

NJU6657

Preliminary

No.

61 to 68

39 to 46

149, 150

69 to 76

Symbol

VDD

VSS

VEE

47 to 54 VSSE

102 to 105, VDCOUT

128, 129

98 to 101,

130,131

132 to 134

135 to 137

138 to 140

141 to 143

144 to 146

55 to 60,

147,148

78 to 83

84 to 89

77,

90 to 93

VDCIN

VLCD

V1

V2

V3

V4

VSSA

C1P

C1N

VST1

94 to 97 VST1R

I/O

Power

GND

Power

Power

Power

Power

Power/

Out

Out

Power/

Out

Power/

Out

Power supply Terminal

GND Terminal

FUNCTION

Voltage booster input

･When the internal voltage booster is not used, This terminal connected VDD.

Voltage booster input

This terminal is internally connected to the VSS level.

2nd voltage booster output. This terminal must be connected VDCIN.

When the internal voltage booster used, the capacitor between VSS terminal must be

connected.

Note: It recommends using 102 to 105 terminals, when the external power supply

used.

Voltage booster input, This terminal connected VDCIN

Note: It recommends using 98 to 101 terminals, when the external power supply used.

LCD driving voltage

・When the internal voltage booster is not used, external LCD driving voltages

(V1 to V4, VSSA and VLCD) should be supplied onto these terminals. The

external voltages should be maintained with the following relationship.

VDCIN>V0>V1>V2>V3>V4>VSSA

・When the internal voltage booster is used, the capacitors between these

terminals (VLCD and V1 to V4) and VSS terminal must be connected.

Capacitor connection terminal for the 1st voltage booster

1st voltage booster output for high voltage circuits

The capacitor between VSS terminal must be connected.

1st voltage booster used, 2nd voltage booster is not used:

VST1=VST1R=VDCOUT=VDCIN

1st voltage booster is not used, 2nd voltage booster used:

OPEN or VST1R=VST1

1st voltage booster is not used, In the case of use by a voltage regulating function of a

2nd voltage booster circuit:

Please supply an external power supply from this terminal.

Note: It recommends using 90 to 93 terminals, when the external power supply used.

1st and 2nd booster are not used:

OPEN

2nd voltage booster output for high voltage circuits

OPEN or The capacitor between VSS terminal must be connected.

1st voltage booster used, 2nd voltage booster is not used:

VST1=VST1R=VDCOUT=VDCIN

1st voltage booster is not used, 2nd voltage booster used:

Please supply an external power supply from this terminal.

1st voltage booster is not used, In the case of use by a voltage regulating function of a

2nd voltage booster circuit:

The capacitor between VSS terminal must be used.

1st and 2nd booster are not used:

The capacitor between VSS terminal must be connected or OPEN.

Ver.2012-11-22

- 11 -

Share Link: