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:

Part No.

Product Description

Restricted Date

BS2624 Touch Key 3/18/2010
BS2654
BS2668
BS2824 Touch Key 3/18/2010
BS2854
BS2868

HT0610

33´120 LCD Driver

4/4/2007

HT13R90

Timer Keeper

1/21/2009

HT1602L

40 Dot Matrix LCD Segment 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

HT1616C

Timer with Dialer Interface

11/12/2009

HT16514

Dot Character VFD Controller & Driver 4/8/2010

HT23B60

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

HT25LC512

CMOS 64K´8-Bit SPI Serial OTP EPROM

9/4/2006

HT337C

37 Key Piano

4/27/2006

HT3496

49 Key Piano

4/27/2006

HT3497

49 Key Piano

10/5/2009

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

HT36A1

Music Synthesizer 8-Bit MCU

5/12/2009

HT36A2

Music Synthesizer 8-Bit MCU

5/12/2009

HT36A3

Music Synthesizer 8-Bit MCU

5/12/2009

HT36A4

Music Synthesizer 8-Bit MCU

5/12/2009

HT36B0

Music Synthesizer 8-Bit MCU

5/12/2009

HT36B2

Music Synthesizer 8-Bit MCU

5/12/2009

HT36B4

Music Synthesizer 8-Bit MCU 5/12/2009

HT36M4

Music Synthesizer 8-Bit MCU

5/12/2009

HT36F2

Music Synthesizer 8-Bit MCU

5/12/2009

HT36F6

Music Synthesizer 8-Bit MCU

5/12/2009

HT36FA

Music Synthesizer 8-Bit MCU

5/12/2009

HT3834

36 Melody Music Generator 10/5/2009

HT38A5

12 Melody Music Generator 10/5/2009

HT46C46

Cost-Effective A/D Type 8-Bit MCU 4/21/2010

HT46C47

Cost-Effective A/D Type 8-Bit Mask MCU

9/9/2010

HT46C48A

Cost-Effective A/D Type 8-Bit MCU 4/21/2010

HT46C63

A/D Type 8-Bit Mask MCU with LCD

3/22/2006

HT45F0V

TinyPowerTM A/D Flash Type 8-Bit MCU with EEPROM 8/26/2009
HT45FM30 Brushless DC Motor Flash Type MCU 9/19/2011

HT45R06

A/D Type 8-Bit OTP MCU

9/4/2006

HT45R34

C/R-F Type 8-Bit OTP MCU

10/15/2007

HT45R35

C/R-F Type 8-Bit OTP MCU 5/16/2011

HT45R35V

C/R to F Type 8-Bit OTP MCU 5/11/2011

HT45R36

C/R-F Type 8-Bit OTP MCU 5/16/2011

HT45R37

TinyPowerTM C/R-F Type 8-Bit OTP MCU 5/16/2011

HT45R37V

TinyPowerTM C/R-F Type 8-Bit OTP MCU 5/11/2011

HT45R38

C/R-F Type 8-Bit OTP MCU 5/16/2011
HT45R52 TinyPower™ Multi-Channel A/D Type 8-Bit OTP MCU 5/5/2011
HT45R54

HT46R01A

Small Package A/D Type 8-Bit OTP MCU 10/5/2009

HT46R01B

Small Package A/D Type 8-Bit OTP MCU 8/31/2011

HT46R01M

1.5V Battery 8-Bit OTP MCU

5/11/2011
HT46R02M

HT46R01N

Small Package 8-Bit OTP MCU 12/15/2011

HT46R12A

A/D Type 8-Bit OTP MCU

5/12/2009

HT46R14A

A/D Type 8-Bit OTP MCU

5/12/2009

HT46R232

A/D Type 8-Bit OTP MCU

5/5/2011

HT46R4A

Cost-Effective A/D Type 8-Bit MCU 5/12/2009

HT46R4AE

Cost-Effective A/D Type 8-Bit MCU 5/12/2009

HT46R46E

Cost-Effective A/D Type 8-Bit OTP MCU

5/12/2009

HT46R46-H

A/D Type 8-Bit OTP MCU

8/21/2008

HT46R47E

Cost-Effective A/D Type 8-Bit OTP MCU

5/12/2009

HT46R47-H

A/D Type 8-Bit OTP MCU

8/21/2008

HT46R48AE

Cost-Effective A/D Type 8-Bit OTP MCU

5/12/2009

HT46R49E

Cost-Effective A/D Type 8-Bit OTP MCU 5/12/2009

HT46R49

Cost-Effective A/D Type 8-Bit OTP MCU 5/12/2009

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

HT46R63

A/D Type 8-Bit OTP MCU with LCD

9/9/2010

HT46R652

A/D Type 8-Bit OTP MCU with LCD

1/30/2012

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

HT46R71D-1

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

6/4/2009

HT46R72D-1A

Dual Slope A/D Type MCU with LCD

6/4/2009

HT46R73D-1A

Dual Slope A/D Type MCU with LCD

6/4/2009

HT46R74D-1

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

6/4/2009

HT46RS03

2K 8-Bit OTP MCU with OPA & Comparator

10/5/2009

HT46RS03E

HT46RS03P

HT46RS03PE

HT46RU75D-1

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

6/4/2009

HT47C10-1

R-F Type 8-Bit Mask MCU

5/13/2011

HT47C10L

R-F Type Low Voltage 8-Bit Mask MCU

5/13/2011

HT47R10A-1

R-F Type 8-Bit OTP MCU

5/13/2011

HT47C20L

R-F Type Low Voltage 8-Bit Mask MCU

5/13/2011

HT48C05

Cost-Effective I/O Type 8-Bit Mask MCU

5/3/2011

HT48C70-1

I/O Type 8-Bit Mask MCU

5/4/2011

HT48CU80

I/O Type 8-Bit Mask MCU

5/4/2011

HT48CA0

8-Bit Remote Type Mask MCU

5/18/2004

HT48CA0-1

Remote Type 8-Bit Mask MCU

4/2/2010

HT48CA0-2

Remote Type 8-Bit Mask MCU

9/9/2010

HT48CA0-3

Remote Type 8-Bit Mask MCU

4/2/2010

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

HT48R01A

Small Package I/O Type 8-Bit OTP MCU 10/5/2009

HT48R01B

Small Package 8-Bit OTP MCU 9/6/2011

HT48R01M

1.5V Battery 8-Bit OTP MCU

5/11/2011
HT48R02M

HT48R01N

Small Package 8-Bit OTP MCU 12/15/2011

HT48R07A-1

Cost-Effective I/O Type 8-Bit OTP MCU

5/12/2009

HT48R08A-1

Cost-Effective I/O Type 8-Bit OTP MCU

5/12/2009

HT48R09A-1

Cost-Effective I/O Type 8-Bit OTP MCU

5/12/2009

HT48R0AA-1

Cost-Effective I/O Type 8-Bit OTP MCU 5/12/2009

HT48R10A-1

I/O Type 8-Bit OTP MCU

5/4/2011

HT48R30A-1

I/O Type 8-Bit OTP MCU

5/4/2011

HT48R50A-1

I/O Type 8-Bit OTP MCU

5/4/2011

HT48R502

I/O Type 8-Bit OTP MCU 5/4/2011

HT48R70A-1

I/O Type 8-Bit OTP MCU

5/4/2011

HT48RU80

I/O Type 8-Bit OTP MCU

5/4/2011

HT48R52

I/O Type 8-Bit OTP MCU

2/24/2006

HT48R53

I/O Type 8-Bit OTP MCU

2/24/2006

HT48RA0-1

Remote Type 8-Bit OTP MCU

4/2/2010

HT48RA0-2

Remote Type 8-Bit OTP MCU

9/9/2010

HT48RA0-3

Remote Type 8-Bit OTP MCU

4/2/2010

HT48RA0A

8-Bit Remote Type OTP MCU

5/18/2004

HT48RB8

8-Bit USB Type OTP MCU

8/20/2003

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

HT6221

Multi-Purpose Encoders

6/8/2009

HT6222

HT640

318 Series of Encoders

5/3/2002

HT6571

Multiple RS-232 Drivers and Receivers

8/20/2003

HT672A

13.56MHz RFID Transponder

12/22/2008

HT672B

13.56MHz RFID Transponder

12/22/2008

HT6740

13.56MHz RFID Transponder

12/22/2008

HT6762*

C Type Alphanumeric Recognition

02/24/2006
HT6P20A

224 OTP Encoder

4/2/2010

HT6P20B

224 OTP Encoder

9/8/2010

HT6P20D

HT74164

8-Bit SIPO 4/26/2010

HT7430

3.0V Negative Voltage Regulator

4/6/2004

HT7500

Clinical Thermometer

11/3/2010

HT81003

EasyVoiceTM 3-Second Speech

4/2/2010

HT81006

EasyVoiceTM 6-Second Speech

11/8/2010

HT81009

EasyVoiceTM 9-Second Speech

HT81012

EasyVoiceTM 12-Second Speech

HT81018

EasyVoiceTM 18-Second Speech

HT81R09

EasyVoiceTM 9-Second Speech OTP

11/8/2010

HT81R18

EasyVoiceTM 18-Second Speech OTP

HT81R36

EasyVoiceTM 36-Second Speech OTP

HT82A620R

Full speed USB 8bit OTP MCU with SPI

8/8/2011

HT82D40REW

2.4GHz Transceiver USB Interface 8-Bit OTP MCU

5/13/2011

HT82J30A

16 Channel A/D Mask MCU with SPI Interface 11/8/2010

HT82J30R

16 Channel A/D OTP MCU with SPI Interface

HT82J31A

16 Channel A/D Mask MCU with SPI Interface 11/8/2010

HT82K28A

Win98 Keyboard Encoder

10/14/2004

HT82K68A

Multimedia Keyboard Encoder 8-Bit Mask MCU

12/26/2005

HT82K73E

2.4GHz Keyboard TX 8-Bit OTP MCU 8/13/2009
HT82K75REW 2.4GHz Transceiver 8-Bit OTP MCU 12/15/2010

HT82K96A

USB Multimedia Keyboard Encoder 8-Bit Mask MCU

11/8/2010

HT82K96E

USB Multimedia Keyboard Encoder 8-Bit OTP MCU

11/8/2010

HT82M21A

3-Key 3D USB+PS/2 Optical Mouse Controller

5/26/2011

HT82M22A

5-Key 3D USB+PS/2 Optical Mouse Controller

5/26/2011

HT82M23A

3/5-Key USB+PS/2 Optical Mouse Controller

5/26/2011

HT82M23B

3/5-Key USB+PS/2 Optical Mouse Controller

5/26/2011

HT82M23C

3/5-Key USB+PS/2 Optical Mouse Controller

5/26/2011

HT82M25A

3/5-Key USB+PS/2 Optical Mouse Controller 5/26/2011

HT82M25A-1

3/5-Key USB+PS/2 Optical Mouse Controller 5/26/2011

HT82M25B

3/5-Key USB+PS/2 Optical Mouse Controller 5/26/2011

HT82M25B-1

3/5-Key USB+PS/2 Optical Mouse Controller 5/26/2011

HT82M25C

3/5-Key USB+PS/2 Optical Mouse Controller 5/26/2011

HT82M25C-1

3/5-Key USB+PS/2 Optical Mouse Controller 5/26/2011

HT82M28A

3/5-Key USB+PS/2 Optical Mouse Controller for VISTA 5/26/2011

HT82M30A

3/5-Key 3D PS/2 Optical Mouse Controller

5/26/2011

HT82M30B

3/5-Key 3D PS/2 Optical Mouse Controller

5/26/2011

HT82M30C

3/5-Key 3D PS/2 Optical Mouse Controller

5/26/2011

HT82M30D

3/5-Key 3D PS/2 Optical Mouse Controller

5/26/2011

HT82M35A

3/5-Key 3D PS/2 Optical Mouse Controller 5/26/2011

HT82M35A-1

3/5-Key 3D PS/2 Optical Mouse Controller 5/26/2011

HT82M35B

3/5-Key 3D PS/2 Optical Mouse Controller 5/26/2011

HT82M35B-1

3/5-Key 3D PS/2 Optical Mouse Controller 5/26/2011

HT82M35C

3/5-Key 3D PS/2 Optical Mouse Controller 5/26/2011

HT82M35C-1

3/5-Key 3D PS/2 Optical Mouse Controller 5/26/2011

HT82M35D

3/5-Key 3D PS/2 Optical Mouse Controller 5/26/2011

HT82M35D-1

3/5-Key 3D PS/2 Optical Mouse Controller 5/26/2011

HT82M39A

3-Key 3D PS/2 Mouse Controller

5/26/2011

HT82M73E

2.4G RF Single-channel Tx for Mouse 8/13/2009
HT82M75REW 2.4GHz Transceiver 8-Bit OTP MCU 12/15/2010

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

HT82M98A

3-Key 3D USB+PS/2 Mouse Controller

5/26/2011

HT82V24

16-Bit CCD/CIS Analog Signal Processor

4/2/2010

HT82V806

CCD 6 Channel Vertical Driver 5/18/2011

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

HT9032D

Calling Line Identification Receiver

7/19/2010

HT9033

CAS Tone Detector

4/2/2010

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

HT9320B

22-Memory Tone/Pulse Dialer

4/2/2010

HT9320C

22-Memory Tone/Pulse Dialer

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

HT95A100

I/O Type Phone 8-Bit Mask MCU 6/12/2009

HT95A10P

I/O Type Phone 8-Bit OTP MCU 6/12/2009

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