KING BILLION ELECTRONICS CO., LTD

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HE83R142

HE80000 SERIES

3

V1.02E

Pin#

Pin name I/O

Function

Description

input (No tri-state structure).

15..22

PRT14[7:0]/

SEG[63:56]

B/

O

8-pin bi-directional I/O port

that is shared with LCD

segment pin.

Mask options：

MO_LIO14[7..0]=1 ~ LCD Pin.

=0 ~ I/O Pin.

MO_14PP[7..0]=1 ~ Push-pull.

=0 ~ Open-drain.

Output must be “1” before reading whenever use them as

input (No tri-state structure).

14..7

79..86

COM[15:0] O LCD COMmon Output

23..

78

SEG[55:0]

O LCD SEGment Output

LCD Data filled from F0H, please refer the LCD RAM

map.

101

L V1

B LCD Bias Voltage 1

100

L V2

B LCD Bias Voltage 2

89

L V3

B LCD Bias Voltage 3

88

L V4

B LCD Bias Voltage 4

87

L V5

B LCD Bias Voltage 5

LV5> LV4> LV3> LV2> LV1。

Adjust Resistor between LCDGS and LV2 to set LV5 for

LCD glass. The formula is LV5 = 2.5*LV2。(Bias=1/5)

Suggest that LV2=2.0V, so LV5=5.0V.

99

LCDGS

B LCD Gain Setting Pin

~300K between LCDGS and LV2

LV2 2.0 Volt

≒

90

LCDVTB

B Charge Pump Capacitor Pin Larger voltage stair than LCxA, LCxB stair

102

LCDVX

B Charge Pump Capacitor Pin Smaller voltage stair than LCxA, LCxB stair

91

LC4B

B Charge Pump Capacitor Pin

92

LC4A

B Charge Pump Capacitor Pin

93

LC3B

B Charge Pump Capacitor Pin

94

LC3A

B Charge Pump Capacitor Pin

95

LC2B

B Charge Pump Capacitor Pin

96

LC2A

B Charge Pump Capacitor Pin

97

LC1B

B Charge Pump Capacitor Pin

98

LC1A

B Charge Pump Capacitor Pin

type-IV LCD Driver. Some of charge pump pins was not

using since the bias of this IC was fixed at 1/5.

5

PWM

O

The PWM output can drive

speaker or buzzer directly.

Set the bit2 of VOC register as one to turn on PWM.

104

VO

O D/A output.

Bit 1 of VOC = ‘1’ , Turn on DA

105

DAO

O DAC Voice Output

Set the bit1(DA=1) of VOC register to turn on DAC with

VO output.

106

OPIN

I OPAMP negative input pin.

107

OPIP

I OPAMP positive input pin.

108

OPO

O OPAMP output pin.

Built-in OP comparator.

Set Bit 0 of VOC = ‘1’ , Turn on OP

115

VDD

P Positive Power Input

103

GND

P Power Ground Input

6

GND_PWM P Dedicated PWM Ground

Adding 0.1 µF capacitor as by-pass capacitor on power

pins is necessary.(within 1 cm distance)