Holtek
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Holtek 32-Bit ARM Cortex MCU, HT32F52342/HT32F52352
XProduct SKU: HT32F52342
The HOLTEK HT32F52342/52352 devices are high performance, low power consumption 32-bit microcontrollers based around an ARM® Cortex™-M0+ processor core. The Cortex™-M0+ is a next-generation processor core which is tightly coupled with Nested Vectored Interrupt Controller (NVIC), SysTick timer, and including advanced debug support. The devices operate at a frequency of up to 48 MHz with a Flash accelerator to obtain maximum efficiency. It provides up to 128 KB of embedded Flash memory for code/data storage and 16 KB of embedded SRAM memory for system operation and application program usage. A variety of peripherals, such as ADC, I2C, USART, UART, SPI, I2S, GPTM, MCTM, SCI, CRC-16/32, RTC, WDT, PDMA, EBI, USB2.0 FS, SW-DP (Serial Wire Debug Port), etc., are also implemented in the device series. Several power saving modes provide the flexibility for maximum optimisation between wakeup latency and power consumption, an especially important consideration in low power applications.
Features
- 32-bit ARM® Cortex™-M0+ processor core - Up to 48 MHz operating frequency - 0.93 DMIPS/MHz (Dhrystone v2.1) - Integrated Nested Vectored Interrupt Controller (NVIC) - Up to 128 KB on-chip Flash memory for instruction/data and option storage - 16 KB on-chip SRAM - External 4 to 16 MHz crystal oscillator - External 32,768 Hz crystal oscillator - Single VDD power supply : 2.0V to 3.6V - Integrated 1.5 V LDO regulator for CPU coreCONTACT US FOR VOLUME PRICING
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Holtek Charger Flash MCU HT45F5Q-2
XProduct SKU: HT45F5Q-2 20SOP
For AC/DC charger applications, the Charger ASSP Flash MCU HT45F5Q-2 includes a battery charger management module, which can be used for the constant voltage and constant current closed loop charging control. The device therefore reduces the need for the usually required external TL431 component, operational amplifier and resistance analogic D/A Converter in traditional battery charging circuits. Therefore the peripheral circuit is more reduced, resulting in a smaller PCB area. The charger management module is composed of two parts. The first part contains two groups of OPAs and D/A Converters, which are used to control the charging voltage and current. The upper limit value of the charger constant voltage and constant current can be obtained by configuring the D/A Converters in the software. The 12-bit D/A Converter is used for constant voltage control while the 8-bit D/A Converter is used for constant current control. The second part of the charger management contains a fixed gain operational amplifier which is used for current amplification. This improves the current resolution and allows the use of smaller current detection resistors thus reducing the resistor power consumption. The D/A Converter in the charger management module is not only used for setting charging voltage and current, but also can be used together with the specific charger production fixtures for improving the traditional manual calibration techniques. By using the external production fixtures, the charger current voltage/current conditions can be confirmed. If the margin of errors is exceeded, the MCU will correct the error by fine tuning the D/A Converter, and store the corrected parameters to EEPROM. When the charger is recharged, the D/A Converter will be given a new correction value to implement correction purpose. Refer to the Holtek application notes for more details.
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Holtek Fingerprint Module
XProduct SKU: GTM5110C2-P
Fingerprint Remote Control Access
- 360° biometric fingerprint scanner - Internal 5 fingerprint storage - Supports 315MHz, 433.9MHz, 868MHz SAW resonator locked - Rechargeable LiPo - Effective range 30 meters for clear air, line of sight - Fast operation cycle time 3 seconds - Long life time 1 million cyclesCONTACT US FOR VOLUME PRICING
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Holtek HT12A / HT12E 2(12) Series of Encoders
XProduct SKU: HT12E-18DIPLF-P
Holtek HT12A / HT12E 2(12) Series of Encoders
General Description The 2(12) encoders are a series of CMOS LSIs for remote control system applications. They are capable of encoding information which consists of N address bits and 12N data bits. Each address/data input can be set to one of the two logic states. The programmed addresses/data are transmitted together with the header bits via an RF or an infrared transmission medium upon receipt of a trigger signal. The capability to select a TE trigger on the HT12E or a DATA trigger on the HT12A further enhances the application flexibility of the 212 series of encoders. The HT12A additionally provides a 38kHz carrier for infrared systems. Applications - Burglar alarm system - Smoke and fire alarm system - Garage door controllers - Car door controllers - Car alarm system - Security system - Cordless telephones - Other remote control systemsFeatures
- Operating voltage - 2.4V~5V for the HT12A - 2.4V~12V for the HT12E - Low power and high noise immunity CMOS technology - Low standby current: 0.1 A (typ.) at VDD=5V - HT12A with a 38kHz carrier for infrared transmission medium - Minimum transmission word - Four words for the HT12E - One word for the HT12A - Built-in oscillator needs only 5% resistor - Data code has positive polarity - Minimal external components - Pair with Holtek's 2(12 )series of decoders - 18-pin DIP, 20-pin SOP packageFrom£0.60(Ex. VAT)
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Holtek HT12D / HT12F 2(12) Series of Decoders
XProduct SKU: HT12D-18DLF-P
Features
Operating voltage: 2.4V~12V Low power and high noise immunity CMOS technology Low standby current Capable of decoding 12 bits of information Binary address setting Received codes are checked 3 times Address/Data number combination HT12D: 8 address bits and 4 data bits HT12F: 12 address bits only Built-in oscillator needs only 5% resistor Valid transmission indicator Easy interface with an RF or an infrared transmission medium Minimal external components Pair with Holtek s 212 series of encoders 18-pin DIP, 20-pin SOP packageFrom£0.60(Ex. VAT)
32 In stock
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Holtek HT1380/HT1381 Serial Timekeeper Chip
XProduct SKU: HT1381-8SOPLF
Holtek HT1380/HT1381 Serial Timekeeper Chip
General Description The HT1380/HT1381 is a serial timekeeper IC which provides seconds, minutes, hours, day, date, month and year information. The number of days in each month and leap years are automatically adjusted. The HT1380/HT1381 is designed for low power consumption and can operate in two modes: one is the 12-hour mode with an AM/PM indicator, the other is the 24-hour mode. The HT1380/HT1381 has several registers to store the corresponding information with 8-bit data format. A 32768Hz crystal is required to provide the correct timing. In order to minimize the pin number, the HT1380/HT1381 use a serial I/O transmission method to interface with a microprocessor. Only three wires are required: (1) REST, (2) SCLK and (3) I/O. Data can be delivered 1 byte at a time or in a burst of up to 8 bytes Applications Microcomputer serial clock Clock and CalendarFeatures
Operating voltage: 2.0V~5.5V Maximum input serial clock: 500kHz at VDD=2V, 2MHz at VDD=5V Operating current: less than 1A at 2V, less than 1.2A at 5V TTL compatible - VIH: 2.0V~VDD+0.3V at VDD=5V - VIL: 0.3V~+0.8V at VDD=5V Two data transmission modes: single-byte, or burst mode Serial I/O transmission All registers store BCD format HT1380: 8-pin DIP package HT1381: 8-pin SOP packageFrom£0.65(Ex. VAT)
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Holtek HT1650 6432 LCD Controller for I/O MCU
XProduct SKU: HT1650-128QFPLF
Holtek HT1650 6432 LCD Controller for I/O MCU
HT1650 is a peripheral device specially designed for I/O type MCUs which are used to expand the display capability. The max. display segment of the device are 2048 patterns (64 segments and 32 commons). It also supports four data bits interface, buzzer sound, Watchdog Timer or time base timer functions. The HT1650 is a memory mapping and multi-function LCD controller. It can control TN-type (Twisted Nematic) or STN-type (Super Twisted Nematic) LCDs. The software configuration feature of the HT1650 make it suitable for multiple LCD applications including LCD modules and display subsystems. Only six lines (CS, WR, DB0~DB3) are required for the interface between the host controller and the HT1650 Application Leisure products Games Personal digital assistant Cellular phone Global positioning system Consumer electronicsFeatures
- Operating voltage: 2.7V~5.2V - Built-in 32kHz RC oscillator - External 32.768kHz crystal oscillator or 32kHz frequency source input - Standby current: <1A at 3V, <2A at 5V - Internal resistor type: 1/6 bias or 1/5 bias, 1/32 duty, and 1/16 duty - Three selectable LCD frame frequencies: 64Hz, 89Hz or 170Hz - Max. of 64 32 patterns, 64 segments and 32 commons - 80 segments and 16 commons selectable by command method - Built-in bit-map display RAM: 2048 bits (=64 32 bits) - Built-in internal resistor type bias generator - Six-wire interface (four data wires) - Eight kinds of time base or WDT selection - Time base or WDT overflow output - R/W address auto increment - Built-in buzzer driver (2kHz/4kHz) - Power down command reduces power consumption - Software configuration feature - Data mode and Command mode instructions - Three data accessing modes - Provides VLCD pin to adjust LCD operating voltage and max. VLCD voltage up to 7V - Provides three kinds of bias current programming - Control of TN-type and STN-type LCDs - 128-pin QFP packageFrom£2.15(Ex. VAT)
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Holtek HT16K33 RAM Mapping 16×8 LED Controller Driver with Keyscan
XProduct SKU: HT16K33-28SOPTRLF-P
Holtek HT16K33 RAM Mapping 16×8 LED Controller Driver with Keyscan
General Description The HT16K33 is a memory mapping and multifunction LED controller driver. The max. Display segment numbers in the device is 128 patterns (16 segments and 8 commons) with a 13×3 (MAX.) matrix key scan circuit. The software configuration features of the HT16K33 makes it suitable for multiple LED applications including LED modules and display subsystems. The HT16K33 is compatible with most microcontrollers and communicates via a two-line bidirectional I^2 C-bus. Applications - Industrial control indicators - Digital clocks, thermometers, counters, multimeters - Combo setsFeatures
- Operating voltage: 4.5V~5.5V - Integrated RC oscillator - I^2C-bus interface - 16×8 bits RAM for display data storage - Max. 16×8 patterns, 16 segments and 8 commons - R/W address auto increment - Max. 13×3 matrix key scanning - 16-step dimming circuit - Selection of 20/24/28-pin SOP package typesFrom£0.45(Ex. VAT)
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25 In stock
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Holtek HT71xx-1 30mA TinyPower LDO Regulators
XProduct SKU: HT7150-1-SOT89TRLF-P
Holtek HT71xx-1 30mA TinyPower LDO
General Description The HT71xx-1 series is a set of three-terminal low power high voltage regulators implemented in CMOS technology. They allow input voltages as high as 30V. They are available with several fixed output voltages ranging from 2.1V 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 external components to obtain variable voltages and currents. Applications - Battery-powered equipment - Communication equipment - Audio/Video equipmentFeatures
- Low power consumption - Low voltage drop - Low temperature coefficient - High input voltage (up to 30V) - Output voltage accuracy: tolerance ±3% - Package types: 3-pin TO92, 3-pin SOT89 and 5-pin SOT23From£0.45(Ex. VAT)
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Holtek HT72xx Series 300mA TinyPowerTM LDO
XProduct SKU: HT7233-SOT23-TRLF-P
The HT72xx series of positive, linear regulators features low quiescent current (4mA typ.) with low dropout voltage, making them ideal for battery applications. The space-saving 3-pin SOT23 package is attractive for "Pocket" and "Hand Held" applications. The devices are capable of supplying 300mA of output current continuously. They are available with several fixed output voltages ranging from 1.8V to 5.0V. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain variable voltages and currents. These rugged devices have Thermal Shutdown and Current Limiting to prevent device failure under the "Worst" of operating conditions. Applications - Portable electronics - Wireless devices - Cordless phones - PC peripherals - Battery powered devices - Electronic scales
Features
- Output voltage ranges: Fixed range of 1.8V, 2.5V, 2.7V, 3.0V, 3.3V, 4.5V, 5.0V type. - Highly accuracy: ±2% - Low voltage drop: 240mV (typ.), VOUT=5.0V at 300mA - Maximum Input Voltage: 8V - Guaranteed output current: 300mA - Low quiescent current: 4mA (typ.) - Current limiting - Over-temperature shutdown - 3-pin SOT23, 5-pin SOT23 and 3-pin SOT89 PackagesFrom£0.55(Ex. VAT)
3000 In stock
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Holtek HT75xx-1 100mA TinyPowerTM LDO
XProduct SKU: HT7521-1-SOT89TRLF-P
Holtek HT75xx-1 100mA TinyPowerTM LDO
General Description The HT75xx-1 series is a set of three-terminal low power high voltage implemented in CMOS technology. They can deliver 100mA output current and allow an input voltage as high as 30V. They are available with several fixed output voltages ranging from 2.1V to 12.0V. CMOS technology ensures low voltage drop and low quiescent current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain variable voltages and currents. Applications - Battery-powered equipment - Communication equipment - Audio/Video equipmentFeatures
Low power consumption - Low voltage drop - Low temperature coefficient - High input voltage (up to 30V) - Quiescent current 2.5µA - High output current : 100mA - Output voltage accuracy: tolerance ±3% - 3-pin TO92, 3-pin SOT89 and 5-pin SOT23 packagesFrom£0.35(Ex. VAT)
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Holtek HT77xx PFM Asynchronous Step-up DC to DC Converter (100mA)
XProduct SKU: HT7733-SOT23-5TRLF
Holtek HT77xx
PFM Asynchronous Step-up DC to DC Converter (100mA) The HT77xx series is a set of PFM step-up DC/DC converter with high efficiency and low ripple. The series features extremely low start-up voltage and high output voltage accuracy. They require only three external components to provide a fixed output voltage of 1.8V, 2.2V, 2.7V, 3.0V, 3.3V, 3.7V or 5.0V. CMOS technology ensures ultra low supply current and makes them ideal for battery-operated applications powered from one or more cells. The HT77xx consists of an oscillator, a PFM control circuit, a driver transistor, a reference voltage unit, and a high speed comparator. They employ pulse frequency modulation (PFM) for minimum supply current and ripple at light output loading. These devices are available in space saving 3-pin SOT89, 3-pin SOT23 and 5-pin SOT23 packages. For 5-pin SOT23 package, it also build-in a chip enable function to reduce power consumption during shutdown mode. Applications · Palmtops/PDAs · Portable communicators/Smartphones · Cameras/Camcorders · Battery-powered equipmentFeatures
· Low start-up voltage: 0.7V (Typ.), 0.9V (Max.) · High efficiency: 85% (Typ.), VOUT³2.7V · High output voltage accuracy: ±2.5% · Output voltage: 1.8V, 2.2V, 2.7V, 3.0V, 3.3V, 3.7V, 5.0V · Output current up to 100mA · Ultra low supply current IDD2: 4mA (Typ.) · Low ripple and low noise · Low shutdown current: 0.5mA (Typ.) · 3-pin SOT89, 3-pin SOT23 and 5-pin SOT23 packageFrom£0.20(Ex. VAT)
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Holtek HT77xxA PFM Step-up DC/DC Converter
XProduct SKU: HT7730A-SOT23-5TRLF
Holtek HT77xxA PFM Step-up DC/DC Converter
The HT77xxA series is a set of PFM step-up DC/DC converter with high efficiency and low ripple. The series features extremely low start-up voltage and high output voltage accuracy. They require only three external components to provide a fixed output voltage of 2.7V, 3.0V, 3.3V, 3.7V or 5.0V. CMOS technology ensures ultra low supply current and makes them ideal for battery-operated applications powered from one or more cells. The HT77xxA consists of an oscillator, a PFM control circuit, a driver transistor, a reference voltage unit, and a high speed comparator. They employ pulse frequency modulation (PFM) for minimum supply current and ripple at light output loading. These devices are available in space saving 3-pin SOT89, 3-pin SOT23 and 5-pin SOT23 packages. For 5-pin SOT23 package, it also build-in a chip enable function to reduce power consumption during shutdown mode Applications Palmtops/PDAs Portable communicators/Smartphones Cameras/Camcorders Battery-powered equipmentFeatures
Low start-up voltage: 0.7V (Typ.) High efficiency: 85% (Typ.) High output voltage accuracy: 2.5% Output voltage: 2.7V, 3.0V, 3.3V, 5.0V Output current up to 200mA Ultra low supply current IDD: 5 A (Typ.) Low ripple and low noise Low shutdown current: 0.5 A (Typ.) Package types: 3-pin SOT89, 3-pin SOT23 and 5-pin SOT23 packageFrom£0.20(Ex. VAT)
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Holtek HT9170B / HT9170D DTMF Receiver
XProduct SKU: HT9170D-18SLF-P
Holtek HT9170B / HT9170D DTMF Receiver
The HT9170B/D are Dual Tone Multi Frequency (DTMF) receivers integrated with digital decoder and bandsplit filter functions as well as power-down mode and inhibit mode operations. Such devices use digital counting techniques to detect and decode all the 16 DTMF tone pairs into a 4-bit code output. Highly accurate switched capacitor filters are implemented to divide tone signals into low and high group signals. A built-in dial tone rejection circuit is provided to eliminate the need for pre-filtering.Features
- Operating voltage: 2.5V~5.5V - Minimal external components - No external filter is required - Low standby current (on power down mode) - Excellent performance - Tristate data output for MCU interface - 3.58MHz crystal or ceramic resonator - 1633Hz can be inhibited by the INH pin - HT9170B: 18-pin DIP package HT9170D: 18-pin SOP packageFrom£0.60(Ex. VAT)
6510 In stock
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Holtek HT9200A / HT9200B DTMF Generators
XProduct SKU: HT9200A-8SLF-P
Holtek HT9200A/HT9200B DTMF Generators
General Description The HT9200A/B tone generators are designed for MCU interfaces. They can be instructed by a MCU to generate 16 dual tones and 8 single tones from the DTMF pin. The HT9200A provides a serial mode whereas the HT9200B contains a selectable serial/parallel mode interface for various applications such as security systems, home automation, remote control through telephone lines, communication systems, etc.Features
Features · Operating voltage: 2.5V~5.5V · Serial mode for the HT9200A · Serial/parallel mode for the HT9200B · Low standby current · Low total harmonic distortion · 3.58MHz crystal or ceramic resonator · HT9200A: 8-pin SOP package - HT9200B: 14-pin SOP packageFrom£0.50(Ex. VAT)
8000 In stock
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