For production or marketing considerations, Holtek may decide to migrate certain products from a normally available state into what is known as a restricted state. Products, which are in a restricted state category, will only be available to existing customers who have current projects requiring continued use of these devices. Note that the restricted state differs from the EOL (End of Life) state, which is a procedure where products will be finally phased out of production.

Note that devices marked with an asterisk * are presently under development.


Last Updated: August 21, 2008

Part No.

Product Description

Restricted Date

HT0610

33´120 LCD Driver

4/4/2007

HT1087-28*

2.85V 500mA General Purpose LDO

9/4/2006

HT1602L

40 Dot Matrix LCD Segment Driver

8/20/2003

HT1608L

2´20 Channel LCD Driver

8/20/2003

HT1609L

2´40 Channel LCD Driver

8/20/2003
HT16A103 96´48 OLED Driver with 4 Gray Scale + 10 Hard Icon 9/4/2006
HT16A105 132´64 OLED Driver with 32 Gray Scale 9/4/2006
HT16A302 96´96 OLED Driver with 65K Full Color 9/4/2006
HT16A303 132´132 OLED Driver with 65K Full Color 9/4/2006

HT1632

RAM Mapping LED Controller & Driver

8/20/2008

HT23B60

60´11 Pixel Data Bank 8-Bit Mask MCU 2/24/2006

HT23B60R

60´11 Pixel Data Bank Low Voltage 8-Bit Mask MCU 2/24/2006

HT25LC512

CMOS 64K´8-Bit SPI Serial OTP EPROM

9/4/2006

HT337B

37 Key Piano with LED Flash

4/27/2006

HT337C

37 Key Piano

4/27/2006

HT3496

49 Key Piano

4/27/2006

HT3498

49 Key Piano

4/27/2006

HT3612

61 Key Piano

4/27/2006

HT3614

61 Key Piano

4/27/2006

HT3615

61 Key Piano

4/27/2006
HT36A0 Music Synthesizer 8-Bit MCU 10/24/2006

HT45R06

A/D Type 8-Bit OTP MCU

9/4/2006

HT45R34

C/R-F Type 8-Bit OTP MCU

10/15/2007

HT46R12

A/D Type 8-Bit OTP MCU

9/4/2006

HT46R14

A/D Type 8-Bit OTP MCU

02/27/2007

HT46R51

A/D Type 8-Bit OTP MCU

9/04/2006

HT46R52

A/D Type 8-Bit OTP MCU

9/04/2006

HT46R53

A/D Type 8-Bit OTP MCU

9/04/2006

HT46R54

A/D Type 8-Bit OTP MCU

9/04/2006

HT46R46-H

A/D Type 8-Bit OTP MCU

8/21/2008

HT46R47-H

A/D Type 8-Bit OTP MCU

8/21/2008

HT46R71D

Dual Slope A/D Type 8-Bit OTP MCU

2/27/2007

HT46R72D-1

Dual Slope A/D Type 8-Bit OTP MCU with LCD

8/8/2008

HT46R73D-1

Dual Slope A/D Type 8-Bit OTP MCU with LCD

8/8/2008

HT48CA0

8-Bit Remote Type Mask MCU

5/18/2004

HT48CA6

8-Bit Remote Type Low Voltage Mask MCU

5/18/2004

HT48CB8

8-Bit USB Type Mask MCU

8/20/2003
HT48E06 I/O Type 8-Bit MTP MCU with EEPROM 2/27/2007
HT48E10 I/O Type 8-Bit MTP MCU with EEPROM 2/27/2007
HT48E30 I/O Type 8-Bit MTP MCU with EEPROM 2/27/2007
HT48E50 I/O Type 8-Bit MTP MCU with EEPROM 2/27/2007
HT48E70 I/O Type 8-Bit MTP MCU with EEPROM 2/27/2007

HT48R52

I/O Type 8-Bit OTP MCU

2/24/2006

HT48R53

I/O Type 8-Bit OTP MCU

2/24/2006

HT48RA0A

8-Bit Remote Type OTP MCU

5/18/2004

HT48RB8

8-Bit USB Type OTP MCU

8/20/2003

HT49CV3

A/D Type 8-Bit OTP MCU 

3/20/2007

HT49CV5

A/D Type 8-Bit OTP MCU with VFD

3/20/2007

HT49CV7

A/D Type 8-Bit OTP MCU with VFD

3/20/2007

HT49CV9

A/D Type 8-Bit OTP MCU with VFD

3/20/2007
HT49RB50* LCD Type USB 8-Bit OTP MCU 9/4/2006
HT49RB70* LCD Type USB 8-Bit OTP MCU 9/4/2006

HT49RV3

A/D Type 8-Bit OTP MCU with VFD

3/20/2007

HT49RV5

A/D Type 8-Bit OTP MCU with VFD

3/20/2007

HT49RV7

A/D Type 8-Bit OTP MCU with VFD

3/20/2007

HT49RV9

A/D Type 8-Bit OTP MCU with VFD

3/20/2007

HT640

318 Series of Encoders

5/3/2002

HT6571

Multiple RS-232 Drivers and Receivers

8/20/2003

HT658

318 Series of Decoders

9/13/2000

HT6720

13.56MHz RFID Transponder

10/20/2004

HT6762*

C Type Alphanumeric Recognition

02/24/2006

HT7430

3.0V Negative Voltage Regulator

4/6/2004

HT82A832R

USB Audio MCU

1/31/2008

HT82K28A

Win98 Keyboard Encoder

10/14/2004

HT82K68A

Multimedia Keyboard Encoder 8-Bit Mask MCU

12/26/2005

HT82K68E

Multimedia Keyboard Encoder 8-Bit OTP MCU

7/10/2007

HT82M938R

27MHz Single Channel RF 3D PS/2 Mouse Receiver

8/20/2003

HT82M938T

27MHz Single Channel RF 3D PS/2 Mouse Transmitter

8/20/2003
HT86030 36-Second Voice Synthesizer 8-Bit MCU 8/19/2008
HT86070 72-Second Voice Synthesizer 8-Bit MCU

HT86072

72-Second Voice Synthesizer 8-Bit MCU

HT86144

144-Second Voice Synthesizer 8-Bit MCU

HT86192

192-Second Voice Synthesizer 8-Bit MCU

HT86384

384-Second Voice Synthesizer 8-Bit MCU

HT86576

576-Second Voice Synthesizer 8-Bit MCU

HT86768

768-Second Voice Synthesizer 8-Bit MCU

HT86R192 192-Second Voice Synthesizer 8-Bit OTP MCU
HT86R384 384-Second Voice Synthesizer 8-Bit OTP MCU

HT9315A

15-Memory Tone/Pulse Dialer 11/24/2006

HT9315B

15-Memory Tone/Pulse Dialer 11/24/2006

HT9315C

15-Memory Tone/Pulse Dialer 11/24/2006

HT9315D

15-Memory Tone/Pulse Dialer 11/24/2006

HT9315AL

15-Memory Tone/Pulse Dialer With IDD Lock

7/27/2004

HT9315BL

15-Memory Tone/Pulse Dialer With IDD Lock

7/27/2004

HT9315CL

15-Memory Tone/Pulse Dialer With IDD Lock

7/27/2004

HT9315DL

15-Memory Tone/Pulse Dialer With IDD Lock

7/27/2004

HT9320A

22-Memory Tone/Pulse Dialer

10/1/2002

HT9320H

22-Memory Tone/Pulse Dialer 11/18/2004

HT9480

8-Bit Numerical Pager Controller MCU

8/20/2003
HT95168 Caller ID Telephone IC 11/23/2006

HTG2130

160 Pixel Dot Matrix LCD 8-Bit Mask MCU

6/10/2005 

HTG2150

8-Bit 320 Pixel Dot Matrix LCD Mask MCU

6/10/2005

HTG2160

640 Pixel Dot Matrix LCD 8-Bit Mask MCU

6/10/2005

HTG2190

8-Bit 1024 Pixel Dot Matrix LCD Mask MCU

6/10/2005

HTG21A0*

2000 Pixel Dot Matrix LCD 8-Bit Mask MCU

6/10/2005