Characteristics

Block Diagram

Applications

2020 HOLTEK New Product Presentation

■ Supports NEC, Philips RC-5/RC-6 and other standard protocols ■ Supports customised protocols ■ Supports custom configurations for air conditioner remote

controller sending codes and free configurations for LCD control

■ Generated projects support secondary development ■ Can implement IR wave decoding with a decoder board and can

identify protocols and learn codes

IR Remote Controller Workshop HT68F2420 / HT67F2432

B03

TV remote controllers, electric fan remote controllers, electric water heater remote controllers, air conditioner remote controllers, etc.

USB

IR Decoder

1

1

2

2

3

3

4

4

D D

C C

B B

A A

S1 S2 S3 S4 S5

S6 S7 S8 S9

S10 S11 S12

S13 S14

S15

Q1NMOS

R122

R2

51

D1LED(1)

COM0COM1COM2COM3SEG0SEG1SEG2SEG3SEG4SEG5SEG6SEG7SEG8SEG9SEG10SEG11SEG12SEG13SEG14SEG15

C2104

C147uF

BAT

3V

VDD

VSS

PA4/REM/SEG13

PB4/COM0PB5/COM1PB6/COM2PB7/COM3PC0/SEG0PC1/SEG1PC2/SEG2PC3/SEG3PC4/SEG4PC5/SEG5PC6/SEG6PC7/SEG7PD1/SEG8PD0/CTP/SEG9PA7/CTCK/SEG10PA6/RX/SEG11PA5/TX/SEG12PA3/VREF/SEG14PA1/AN0/SEG15PB0/AN1/SEG16

PB3/INT/SEG19PB2/AN3/SEG18PB1/AN2/SEG17PA2/ICPCK/XT1PA0/ICPCK/XT2

HT67F2432

LCD Panel

LCD_PANEL(3)

COM0COM1COM2COM3SEG1SEG2SEG3SEG4SEG5SEG6

SEG7SEG8SEG9SEG10SEG11SEG12SEG13SEG14SEG15

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

D D

C C

B B

A A

GND

S31

S45 S30

S57

S44 S29

S70

S56

S43 S28

S81 S69

S55

S42 S27

S91 S80 S68

S54

S41 S26

S100 S90 S79 S67

S53

S40 S25

S108 S99 S89 S78 S66

S52

S39 S24

S115 S107 S98 S88 S77 S65

S51

S38 S23

KEY_PORT3

KEY_PORT4

KEY_PORT5

KEY_PORT6

KEY_PORT7

KEY_PORT8

KEY_PORT9

KEY_PORT3KEY_PORT4KEY_PORT5KEY_PORT6KEY_PORT7KEY_PORT8KEY_PORT9

KEY_PORT1

KEY_PORT2

KEY_PORT2KEY_PORT1

S121 S114 S106 S97 S87 S76 S64

S50

S37 S22

S126 S120 S113 S105 S96 S86 S75 S63

S49

S36 S21

S130 S125 S119 S112 S104 S95 S85 S74 S62

S48

S35 S20

S133 S129 S124 S118 S111 S103 S94 S84 S73 S61

S47

S34 S19

S135 S132 S128 S123 S117 S110 S102 S93 S83 S72 S60

S46

S33 S18

S136 S134 S131 S127 S122 S116 S109 S101 S92 S82 S71 S59

S58

S32 S17 S1

S2

S3

S4

S5

S6

S7

S8

S9

S10

S11

S12

S13

S14

S15

S16

KEY_PORT10

KEY_PORT11

KEY_PORT12

KEY_PORT13

KEY_PORT14

KEY_PORT15

KEY_PORT16

KEY_PORT10KEY_PORT11KEY_PORT12KEY_PORT13KEY_PORT14KEY_PORT15KEY_PORT16

VDD

BAT?3V

R1

22

R2

1K

D1

LED(1)

D2

RED

C2104

C247uF

PB7PB6PB5PB4PB3PB2PB1PB0PA7PA6PA5PA4PA3PA2PA1PA0

VDD

VSS1VSS

REM/REMDRV

U

HT68F2420

B (3)B03