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Featured Holtek manuals

Holtek HT48R062/HT48C062 Microcontroller Datasheet
The HT48R062/HT48C062 is an economical 8‑bit microcontroller designed for high‑performance, low‑cost input/output control. It offers 11 bidirectional I/O pins, an internal oscillator, watchdog timer, low‑power halt mode, and a compact 16‑pin DIP/NSOP package.
The datasheet details electrical characteristics, pin functions, memory organization, instruction set, and timing parameters, providing designers with the information needed to integrate the device into industrial, consumer, or subsystem applications.
Covers: Features · Pin Description · Absolute Maximum Ratings · DC Characteristics · System Functions · Program Memory

Holtek HT48R062/HT48C062 Microcontroller Datasheet
The HT48R062/HT48C062 series is a low‑cost 8‑bit MCU designed for economical multi‑I/O control in industrial, consumer and subsystem applications. It offers stable I/O, low power consumption, built‑in oscillator options and a watchdog timer.
Key functional blocks include a 14‑bit program memory (1 K words), 8‑bit data memory (32 bytes), an arithmetic‑logic unit (ALU), status registers, a programmable oscillator (crystal or RC), and a watchdog timer with configurable prescaler. The device is supplied in 16‑pin DIP or NSOP packages. This manual is written in Chinese.
Covers: Features · Pin Diagram · Electrical Characteristics · System Functions · Program Memory · Data Memory

Holtek HT48R05A-1 / HT48C05 / HT48R06A-1 / HT48C06 8-bit I/O Microcontroller Datasheet
The HT48R05A‑1/HT48C05 and HT48R06A‑1/HT48C06 are economical 8‑bit microcontrollers designed for cost‑effective I/O control in industrial, consumer and subsystem applications.
They provide 13 bidirectional I/O pins, an external interrupt, an 8‑bit timer with prescaler, built‑in crystal or RC oscillator, watchdog timer, low‑power halt/wake functions, and ROM/RAM sizes of 512/1024 × 14‑bit program memory and 32/64 × 8‑bit data memory. The devices operate from 2.2‑5.5 V (4 MHz) or 3.3‑5.5 V (8 MHz) and are offered in 16‑pin SSOP or 18‑pin DIP packages. This manual is written in Chinese.
Covers: Features · Pin Diagram · Pin Description · Electrical Characteristics · DC Characteristics · AC Characteristics

Holtek HT48F06E/HT48F10E/HT48F30E Datasheet
The HT48F06E, HT48F10E and HT48F30E are 8‑bit high‑performance RISC microcontrollers designed for low‑cost multi‑I/O control applications. They feature built‑in non‑volatile EEPROM, flash program memory, multiple I/O ports, timers, watchdog, and oscillator options, allowing flexible and power‑efficient designs.
The document provides detailed pin descriptions, electrical characteristics (DC and AC), package dimensions, ordering information, and application notes. It also includes absolute maximum ratings, power consumption data, and recommended operating conditions for each device variant. This manual is written in Chinese.
Covers: Overview · Features · Pin Description · DC Electrical Characteristics · AC Electrical Characteristics · Absolute Maximum Ratings
Latest Holtek manuals
Holtek HT48R062/HT48C062 Microcontroller Datasheet
Datasheet 36 pages · 720 KB · ENTechnical specifications for the Holtek HT48R062/HT48C062 8‑bit microcontroller.
Holtek HT48R062/HT48C062 Microcontroller Datasheet
Datasheet 35 pages · 518 KB · ZHThe Holtek HT48R062/HT48C062 is an economical 8‑bit microcontroller with 11 bidirectional I/O pins, built‑in crystal/RC oscillator, watchdog timer, 1 KB ROM…
Holtek HT48R05A-1 / HT48C05 / HT48R06A-1 / HT48C06 8-bit I/O Microcontroller Datasheet
Datasheet 40 pages · 472 KB · ZHThe Holtek HT48R05A‑1/HT48C05/HT48R06A‑1/HT48C06 is an economical 8‑bit microcontroller with 13 I/O pins, built‑in timer, watchdog, oscillator options and…
Holtek HT48F06E/HT48F10E/HT48F30E Datasheet
Datasheet 74 pages · 885 KB · ZHTechnical specifications for Holtek HT48F06E, HT48F10E and HT48F30E 8‑bit flash microcontrollers with built‑in EEPROM.
HOLTEK HT70XX DATA SHEET
The HT70XX series is a set of three-terminal low power voltage detectors implemented in CMOS technology. Each voltage detector in the series detects a particular fixed voltage ranging from 2.2V to 7V. The voltage de- tectors consist of a high-precision and low power con- sumption standard voltage source, a comparator, hysteresis circuit, and an output driver. CMOS technol- ogy ensures low power consumption. Although designed primarily as fixed voltage detectors, these devices can be used with external components to detect user specified threshold voltages (NMOS open drain type only).
HOLTEK HT48R06A-1 DATA SHEET
HT48R06A-1 is an 8-bit OTP microcontroller designed for multiple I/O product applications. It features low power consumption and electric programming capability, making it suitable for product development.
HOLTEK HT71XX DATA SHEET
The HT71XX series is a set of three-terminal low power high voltage regulators implemented in CMOS technology. They allow input voltages as high as 24V. They are available with several fixed output voltages ranging from 3.0V to 5.0V. CMOS technology ensures low voltage drop and low quiescent current. Although designed primarily as fixed voltage regulators, these devices can be used with ex- ternal components to obtain variable voltages and currents.
HOLTEK HT9302 Series DATA SHEET
HOLTEK HT36A3 8-Bit Music Synthesizer MCU
HT36A3 is an 8-bit high performance RISC-like microcontroller specifically designed for music applications. It provides an 8-bit MCU and an 8-channel wavetable synthesizer. The product features an operating voltage range of 2.4V~5.0V, operating frequency range of 3.58MHz~12MHz, 20 bidirectional I/O lines, two 8-bit programmable timers, watchdog timer, and more.
HOLTEK HT6221/HT6222 Multi-Purpose Encoders Manual
HT6221/HT6222 Multi-Purpose Encoders are CMOS LSI encoders designed for use in remote control systems. They are capable of encoding 16-bit address codes and 8-bit data codes. Each address/data input can be set to one of the two logic states, 0 and 1. The HT6221/HT6222 contain 32 keys (K1~K32) and 64 keys (K1~K64), respectively. When one of the keys is triggered, the programmed address/data is transmitted together with the header bits via an IR (38kHz carrier) transmission medium.
HOLTEK HT1626 RAM Mapping 48 Manual
HT1626 is a peripheral device specially designed for I/O type MCUs to expand the display capability. The device has a maximum display segment of 768 patterns (48 * 16). It also supports serial interface, buzzer sound, Watchdog Timer or time base timer functions. The HT1626 is a memory mapping and multi-function LCD controller. The software configuration feature of the HT1626 makes it suitable for multiple LCD applications including LCD modules and display subsystems. Only three lines are required for the interface between the MCU and the LCD controller.
HOLTEK HT2812 Single Sound Generator handbook
HOLTEK HT46R32/HT46R34 A/D Type 8-Bit OTP MCU with OPA
The HT46R32/HT46R34 are 8-bit high performance RISC architecture microcontroller devices with integrated A/D converter, suitable for applications interfacing to analog signals such as those from sensors.
HOLTEK HT27LC512 OTP CMOS 64K×8-Bit EPROM handbook
The HT27LC512 chip family is a low-power, 512K bit, +3.3V electrically one-time pro- grammable (OTP) read-only memories (EPROM).
HOLTEK HT6P20X Series 2 24 OTP Encoder
The HT6P20X series 224 OTP encoder is a CMOS LSI encoder designed for remote control system applications. It encodes 24 bits of information and then serially transmits it via the DOUT pin upon receipt of transmission enable (DATA pins: D0~D7) signals. The combination of address and data bits of the HT6P20X is designed using one time programmable process. In addition, the chip offers various packaging for flexible combination of programmable ad- dress/data so as to meet various applications. Its pro- grammable address/data is transmitted together with the anti-code bits via RF or infrared transmission me- dium upon receipt of a trigger signal.
Which document do I need?
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Holtek manuals
How many I/O pins does the HT48R062/HT48C062 provide?
It provides 11 bidirectional input/output ports.
What size is the program memory of the HT48R062/HT48C062?
The microcontroller includes 1 K × 14‑bit ROM for program storage.
How many I/O pins does the device provide?
The MCU provides 11 bidirectional I/O pins.
What size of program memory is available?
It has 1 K words of 14‑bit program memory (ROM).
What is the operating voltage range for the HT48R05A‑1 at 4 MHz?
It operates from 2.2 V to 5.5 V.
From: Holtek HT48R05A-1 / HT48C05 / HT48R06A-1 / HT48C06 8-bit I/O Microcontroller Datasheet
How many bidirectional I/O pins does the HT48R05A‑1 provide?
The device provides 13 bidirectional I/O pins.
From: Holtek HT48R05A-1 / HT48C05 / HT48R06A-1 / HT48C06 8-bit I/O Microcontroller Datasheet
