Suites 2202-7, Tower 6, The Gateway,
9 Canton Road, Tsimshatsui,
Kowloon, Hong Kong
Tel: (852) 2123 3289 Fax: (852) 2123 3393
E-mail: sales@jesstech.com
Home Page: www.jesstech.com

HE84772

HE80000 SERIES

15 Aug 01

V2.0

A.HE84772 Introduction

HE84772 is a 8-bit CMOS micro-controller. This IC has 32 COM (4096-dot LCD driver + 24 Bit
I/O Port) ..... (3328-dot LCD driver + 48 Bit I/O Port) LCD driver, or 48 COM (5376-dot LCD
driver + 24 Bit I/O Port) .... (4224-dot LCD driver + 48 Bit I/O Port) or 64 COM (6144-dot LCD
driver + 24 Bit I/O Port) .... (4608-dot LCD driver + 48 Bit I/O Port), or 80 COM (6400-dot
LCD driver + 24 Bit I/O Port) .... (4480-dot LCD driver + 48 Bit I/O Port) LCD driver has
various combination (depends on Mask Option).It has built in voltage regulator which makes the
LCD maintain a stable display. It has built-in one internal Op-Amp, can be used in light, speech,
temperature and humidity sensor application. It built-in an internal Voltage detector circuitry
which can be used for low battery detection. One 7-bit D/A converter and one PWM output
module to provide a speech output interface. Use the built-in 512K Byte ROM which can store
around large volume of data including voice, graphics and data.
The HE84772 provides a very simple and effective instruction set, each instruction byte occupies
only 1.5 clock cycle time, therefore, it is suitable to apply in the high performance systems.

B.HE84772 Features

Operating Voltage:

2.4V � 3.6V

Operation frequency Range:

DC ~ 8MHz @ 3.6V
DC ~ 4MHz @ 2.4V

ROM size:

512K Bytes (256K Program ROM + 256K Data ROM)

RAM size:

16K Bytes

Dual Clock:

Normal(Fast) clock:

32.768K ~ 8MHz (No Internal Clock)

Slow

clock:

32.768KHz

Operating Mode:

DUAL FASTSLOWIDLESLEEP

Built-in WATCH DOG TIMER

24-48 bi-directional I/O pins, PUSH-PULL or OPEN DRAIN output selected by mask option

Special designed hardware auto scanning keyboard (4*20), it can both lower the cost of
hardware (share with LCD SEG PIN) and lower the burden of software

Built-in an internal Op-Amp

Built-in voltage detector, it consists of two testing points: Vth=2.2v/2.4v

Either of the following combination can be selected: 32COM*128SEG LDC DRIVER or
48COM*112 SEG LDC DRIVER or 64COM*96 SDG LDC DRIVER or 80COM*80SDG
LDC DRIVER. All of these are selected B TYPE. Built-in one voltage regulator. Please refer to
application circuit, the maximum LCD voltage, the LVP, must be less than 8.5Volt.

Built-in a PWM output circuit (No rate selection, connect with VDD & PWMP)

Provides three internal and two external interrupt

Provides two 16-bit timer, one time-base timer

Instruction Set : 32 Instructions, 4 types of Addressing Mode, 2 individual Pointer for ROM
Used to access and store data into the 21-bit TABLE POINTER and also read/write the 11 bits
DATA POINTER from RAM

Suites 2202-7, Tower 6, The Gateway,
9 Canton Road, Tsimshatsui,
Kowloon, Hong Kong
Tel: (852) 2123 3289 Fax: (852) 2123 3393
E-mail: sales@jesstech.com
Home Page: www.jesstech.com

HE84772

HE80000 SERIES

15 Aug 01

V2.0

D. Pin Assignment

Pin

Pin Name

I/O

Function

Description

106
105

FXI,
FXO

B,
O

External Fast Clock pin. To
connect the Crystal or R,C
oscillation to generate
32.768KHz ~ 8MHz
system clock.

109
108

SXI,
SXO

I,
O

External Slow Clock pin .
To connect the 32.768KHz
oscillator to generate the
stable frequency for Slow
Mode, provide LCD for
HE84772 and Timer 1
clock source.

Mask Option settings :
MO_FCK/SCKN=00Slow Clock only

01Illegal
10Dual Clock
11Fast Clock only

MO_FOSCE=0Internal fast oscillation

1External fast oscillation

MO_FXTAL=0R,C oscillation for Fast Clock

1Crystal oscillation for Fast Clock

MO_SXTAL=0R,C oscillation for 32.768K Clock

1X'tal oscillation for 32.768K Clock

Program the value of OP1and OP2 to change the
operating modes (Normal, Slow, Idle and Sleep).
In Dual Clock modethe system runs in Fast Clock, only
LCD & Timer 1 use the 32.768K clock source.

104 RSTP_N

System reset signal

Pull this pin to low level to reset the system. Besides,
Select the Mask Option (MO_PORE=1) to enable the
HE84772 internal Power-on Reset function.
In addition, the MO_WDTE is used for Watch Dog
Timer setting
MO_WDTE =0Disable Watch Dog Timer

=1Enable Watch Dog Timer

107 TSTP_P

Test Pin.
Pull the pin to high level to
enter into testing mode.

Connect TSTP_P TO to a TEST POINT, and to make it
floating. Test can be done on PCB

129.
.136

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

PRTC[3:0]

Port C bi-directional I/O
pin (8 pins) or PRTC[7:4]
can be used for key scan
Dedicated input pin

Mask Option MO_CPP[7:0] to preset the output type:

MO_CPP=1 : Push-pull output

= 0 : Open-drain output.

When assigned the port to input pin, send a `1' and read
the result to get the input value.

119
126

PRTD[7:0]

Port D bi-directional I/O
pin, (8 pins). PRTD[7:2] is
also a Wake-up pin and
PRTD[7:6] is used for
interrupt input pin.

Mask Option MO_DPP[7:0] to preset the output type:

MO_DPP=1 : Push-pull output

0 : Open-drain output.

When assigned the port to input pin, send a `1' and read
the result to get the input value.

111..
118

PRT10[7:0]

Port D bi-directional I/O
pin, (8 pins).

Mask Option MO_10PP[7:0] set output type

MO_10PP ='1'then Push-pull output

='0'then Open-drain output

When assigned the port to input pin, send a `1' and read
the result to get the input value.

Suites 2202-7, Tower 6, The Gateway,
9 Canton Road, Tsimshatsui,
Kowloon, Hong Kong
Tel: (852) 2123 3289 Fax: (852) 2123 3393
E-mail: sales@jesstech.com
Home Page: www.jesstech.com

HE84772

HE80000 SERIES

15 Aug 01

V2.0

Pin

Pin Name

I/O

Function

Description

26..
33

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

B/
O

Port 14 bi-directional I/O
pin, (8 pin) or LCD
Segment [23:16]

Mask Option MO LIO14 [7:0] set these 8 pins to be I/O
or LCD Segment

MO_LIO14[7:0] =0; I/O Pin=1, LCD Pin

When pin assigned to be I/O pin, use Mask Option
MO_14PP[7:0] to preset the output
MO_14PP[7:0]=1 : Push-pull output

0 : Open-drain output.

34..
41

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

B/
O

Port 15 bi-directional I/O
pin, (8 pin) or LCD
Segment [15:8]

Mask Option MO LIO15 [7:0] set these 8 pins to be I/O
or LCD Segment

MO_LIO15[7:0] =0; I/O Pin=1, LCD Pin

When pin assigned to be I/O pin, use Mask Option
MO_15PP[7:0] to preset the output
MO_15PP[7:0]=1 : Push-pull output

0 : Open-drain output.

42..
49

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

B/
O

Port 17 bi-directional I/O
pin, (8 pin) or LCD
Segment [7:0]

Mask Option MO LIO17 [7:0] set these 8 pins to be I/O
or LCD Segment

MO_LIO17[7:0] =0; I/O Pin=1, LCD Pin

When pin assigned to be I/O pin, use Mask Option
MO_17PP[7:0] to preset the output
MO_17PP[7:0]=1 : Push-pull output

0 : Open-drain output.

6..
25

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

LCD Segments / key scan
out; exist simultaneously

MO_LCDKEY
=0: LCD SGKY[43:24] as SEG/KEY SCAN
=1: LCD SGKY[43:24] as SEG pin only

50..81

COM[31:0]

LCD COMmon Output

185
..
138

CMSG[79:32]

COM[79:32]/ SEG[80:127]

186..
216
1..5

SEG[79:44]

LCD SEGment Output

Refer LCD and RAM map.

L LV1

LCD Bias Volt 1

L LV2

LCD Bias Volt 2

L LV3

LCD Bias Volt 3

L LV4

LCD Bias Volt 4

L LV5

LCD Bias Volt 5

LVP>LV5>LV4>LV3>LV2>LV1.
LVP-0.5 >= LV5 (be sure to keep 0.5 volt between LVP
and LV5 at lease.)
Adjust Resistor (R2) between LGS2 and LV5 to set LV5
for LCD glass. The formula is LV5 = (1 +
R2/80K)*0.9V

LGS1

Regulator Voltage setting

Could adjust LVREG voltage

LGS2

LCD Drive Voltage setting For LV5 voltage setting

LVP

Charge Pump Output

LVP=3(,4,5)*LVREG which setting by external
Capacitor set LVP must be small than 8.5V

LCAP4A

Charge pump capacitor pin

LCAP2B

Charge pump capacitor pin

LCAP2A

Charge pump capacitor pin

LCAP1A

Charge pump capacitor pin

LCAP1B

Charge pump capacitor pin

LCAP3A

Charge pump capacitor pin

Different capacitor Configuration make
LVP = 3*(,4,5)* LVREG

The LCD driving circuit here makes regulation first, then
charge pump to LVP. It generates bias voltage based on
LVP

L VREG

Voltage regulator output
(To charge Pump Input

Adjust to ~2.0 Volt by Resistor between LGS1 and
LVREG

Suites 2202-7, Tower 6, The Gateway,
9 Canton Road, Tsimshatsui,
Kowloon, Hong Kong
Tel: (852) 2123 3289 Fax: (852) 2123 3393
E-mail: sales@jesstech.com
Home Page: www.jesstech.com

HE84772

HE80000 SERIES

15 Aug 01

V2.0

Pin

Pin Name

I/O

Function

Description

L VAG

Reference Voltage output

Fixed 0.9 Volt DC

128 PWM

PWM Output, can be used
to drive Speaker or Buzzer.
As Voice output

Preset VOC register Bit2: PWM = 1; Turn on PWM

D/A voice output

Preset the Bit-1 of VOC register: DA=1turn on VO.

100 DAO

D/A Output, for OP-Amp
use

Preset the Bit-0 of VOC register: OP=1turn on DAO.

101 OPIN

OPAMP Inverting I/P pin

102 OPIP

OPAMP Non-inverting I/P
pin.

103 OPO

OPAMP O/P pin

Preset the Bit-0 of VOC register: OP=1turn on OP.

Individual built-in OP-Amp

110

VDD

Positive Power Input

GND

Power Ground Input

137

VDD_RAM

Dedicated Power for RAM

127

GND_PWM

Dedicated GND for PWM

2 Pair of Power Pin: This two set power pin is separated
inside. Adding two 0.1

�

F capacitor as by-pass capacitor on

each set is necessary

E. LCD RAM MAP

This IC consists of 32COM, 48COM, 64COM and 80COM four
different types of LCD driving method, the RAM map is as follow:

32COM:

Page

SEG

[7:0]

SEG

[15:8]

SEG

[23:16]

SEG

[31:24]

SEG

[39:32]

SEG

[47:40]

SEG

[55:48]

SEG

[63:56]

COM0

7E0H

7C0H

7A0H

780H

760H

740H

720H

700H

COM1

7E1H

7C1H

7A1H

781H

761H

741H

721H

701H

COM15

7EFH

7CFH

7AFH

78FH

76FH

74FH

72FH

70FH

COM16

7F0H

7D0H

7B0H

790H

770H

750H

730H

710H

COM30

7FEH

7DEH

7BEH

79EH

77EH

75EH

73EH

71EH

COM31

7FFH

7DFH

7BFH

79FH

77FH

75FH

73FH

71FH

Page

SEG

[71:64]

SEG

[79:72]

SEG

[87:80]

SEG

[95:88]

SEG

[103:96]

SEG

[111:104]

SEG

[119:112]

SEG

[127:120]

COM0

6E0H

6C0H

6A0H

680H

660H

640H

620H

600H

COM1

6E1H

6C1H

6A1H

681H

661H

641H

621H

601H

COM15

6EFH

6CFH

6AFH

68FH

66FH

64FH

62FH

60FH

COM16

6F0H

6D0H

6B0H

690H

670H

650H

630H

610H

COM30

6FEH

6DEH

6BEH

69EH

67EH

65EH

63EH

61EH

Suites 2202-7, Tower 6, The Gateway,
9 Canton Road, Tsimshatsui,
Kowloon, Hong Kong
Tel: (852) 2123 3289 Fax: (852) 2123 3393
E-mail: sales@jesstech.com
Home Page: www.jesstech.com

HE84772

HE80000 SERIES

15 Aug 01

V2.0

COM31

6FFH

6DFH

6BFH

69FH

67FH

65FH

63FH

61FH

48COM:

Page

7, 6

SEG

[7:0]

SEG

[15:8]

SEG

[23:16]

SEG

[31:24]

SEG

[39:32]

SEG

[47:40]

SEG

[55:48]

COM0

7C0H

780H

740H

700H

6C0H

680H

640H

COM1

7C1H

781H

741H

701H

6C1H

681H

641H

COM15

7CFH

78FH

74FH

70FH

6CFH

68FH

64FH

COM16

7D0H

790H

750H

710H

6D0H

690H

650H

COM31

7DFH

79FH

75FH

71FH

6DFH

69FH

65FH

COM32

7E0H

7A0H

760H

720H

6E0H

6A0H

660H

COM46

7EEH

7AEH

76EH

72EH

6EEH

6AEH

66EH

COM47

7EFH

7AFH

76FH

72FH

6EFH

6AFH

66FH

Page

6, 5, 4

SEG

[63:56]

SEG

[71:64]

SEG

[79:72]

SEG

[87:80]

SEG

[95:88]

SEG

[103:96]

SEG

[111:104]

COM0

600H

5C0H

580H

540H

500H

4C0H

480H

COM1

601H

5C1H

581H

541H

501H

4C1H

481H

COM15

60FH

5CFH

58FH

54FH

50FH

4CFH

48FH

COM16

610H

5D0H

590H

550H

510H

4D0H

490H

COM31

61FH

5DFH

59FH

55FH

51FH

4DFH

49FH

COM32

620H

5E0H

5A0H

560H

520H

4E0H

4A0H

COM46

62EH

5EEH

5AEH

56EH

52EH

4EEH

4AEH

COM47

62FH

5EFH

5AFH

56FH

52FH

4EFH

4AFH

64COM:

Page

7,6

SEG

[7:0]

SEG

[15:8]

SEG

[23:16]

SEG

[31:24]

SEG

[39:32]

SEG

[47:40]

COM0

7C0H

780H

740H

700H

6C0H

680H

COM1

7C1H

781H

741H

701H

6C1H

681H

COM15

7CFH

78FH

74FH

70FH

6CFH

68FH

COM16

7D0H

790H

750H

710H

6D0H

690H

COM31

7DFH

79FH

75FH

71FH

6DFH

69FH

COM32

7E0H

7A0H

760H

720H

6E0H

690H

COM47

7EFH

7AFH

76FH

72FH

6EFH

6AFH

COM48

7F0H

7B0H

770H

730H

6F0H

6B0H

Электронный компонент: HE84772