UPD16498 Ver la hoja de datos (PDF) - NEC => Renesas Technology

Número de pieza

componentes Descripción

Fabricante

UPD16498

1/128 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM

NEC => Renesas Technology 

µPD16498

3. PIN FUNCTIONS

3.1 Power Supply System Pins

Symbol

VDD1

VDD2

VSS

VOUT

Name

Pad No.

Logic power supply 92 to 94, 100, 108,

pin

116, 126, 171

Boost circuit

power supply pin

89 to 91,

Logic and driver

ground pin

28, 47, 50, 95 to 97,

103, 111, 121, 129,

168, 174, 183,

Driver power

48, 49

supply pin

VLCD,

VLC1 to VLC4

C1+, C1−

C2+, C2−

C3+, C3−

C4+, C4−

C5+, C5−

C6+, C6−

C7+, C7−

C8+, C8−

C9+, C9−

C1A

Reference power

supply pins for

driver

Boost capacitor

connection pins (1)

Boost capacitor

connection pin (2)

46, 45,

44 to 37

86, 85, 84, 83,

82, 81, 80, 79,

78, 77, 76, 75,

74, 73, 72, 71,

70, 69, 68, 67,

66, 65, 64, 63,

62, 61, 60, 59,

58, 57, 56, 55,

54, 53, 52, 51,

87, 88

I/O

Description

− Power supply pin for logic circuit

− Power supply pin for booster

− Ground pin for logic and driver circuits

− Power supply pin for driver. Output pin for on-chip booster.

Connect a 1 µF boost capacitor between this pin and the GND

pin.

If not using the on-chip booster, a direct driver power supply can

be input.

− These are reference power supply pins for the LCD driver.

Connect a capacitor between these pins and the GND pin if an

internal bias has been selected.

− These are capacitor connection pins for the booster. When using

the on-chip booster, connect a 1 µF capacitor between positive

(+) and negative (-) pins.

− This is a capacitor connection pin for boost adjustment. When

using the on-chip booster, connect a 1 µF capacitor between this

pin and the GND pin.

10

Data Sheet S15730EJ2V0DS

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