King Billion Electronics Co., Ltd

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HE85750

HE80000 SERIES

2003/7/30

21

V1.52E

This specification is subject to change without notice. Please contact sales person for the latest version before use.

VDD

VDD

VDD

VDD

VDD

VDD

VDD

SXO

SXI

FXI

FXI

SXI

SXO

SXO

LV1

FXI

FXO

FXO

SXI

LC1

SXO

LC2

LV2

LV1

LC1

LC2

LC1

LV2

LC2

LC2

LC1

LV3

LV2

LV3

LV3

LV2

LV1

LV3

LV1

C5

0.1uF

C6

0.1uF

C6

0.1uF

C8 0.1uF

C9 0.1uF

C7 0.1uF

C9 0.1uF

C: Please Ref. AN016

R: Please ref. AN016

20P

32.768K

R > 8.2 KOhm

20P

20P

C3

0.1uF

C2

100uF

BATTERY1

3V

C1

0.1uF

C2

0.1uF

C3

0.1uF

Q1

NPN

SP1

SPEAKER

VR1

?K Ohm

2MHZ

C1

0.1uF

C4

0.1uF

R1

50K

HE85750

VDD

FXO

FXI

SXI

SXO

LC1

LC2

LV1

LV3 < 7 Volt

LVG

VO

PWM

COM[31:0]

PRT14[7:0]/SEG[23:16]

PRTD[7:0]

RSTP_N

GND

OPIN

OPIP

OPO

LR4

LR3

LR2

LR1

LR0

PRTC[7:4]/SCNI[3:0]

SGKY[43:24]/SCNO[19:0]

PRT15[7:0]/SEG[15:8]

PRT17[7:0]/SEG[7:0]

CMSG[47:32]

LV2

20P

SW1

RESET

CONFIGURATION

32 COM:1/7 BIAS

48 COM:1/8 BIAS

External Slow Clock:

RC osc.

No External Parts is

necessary if user adopt

Internal Fast RC

Clock

External Fast Clock:

Crystal osc.

External Fast Clock:

RC osc.

External Slow Clock:

Crystal osc.

LCD PANEL

Passive

Bias &

Filter

Circuit

Buzzer

or

Speaker

Circuit

Please Refer

AN022 for Speech

Output Circuit

KEY SCAN

Triple Charge Pump is selected

LCD Max. Voltage=LV3=3*VDD

Triple Charge Pump is selected

LCD Max. Voltage=LV3=3/2*VDD

Triple Charge Pump is selected

LCD Max. Voltage=LV3=VDD

No Capacitor

Floating

Floating