HT12F 2 12 Series of Decoders Features. Operating voltage: V~12V Low power and high noise immunity CMOS Built-in oscillator needs only 5% resistor. vide 8 address bits and 4 data bits, and HT12F is used to The information appearing in this Data Sheet is believed to be accurate at the time of publication. HT12F Datasheet, HT12F Holtek Decoder Datasheet, buy HT12F Decoder IC.
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The decoders receive serial addresses and data from a programmed 2 12 series of encoders that are transmitted by a carrier using an RF or an IR transmission medium. They compare the serial input data three times continuously with their local addresses. If no error or unmatched codes are found the input data codes are decoded and then transferred to the output pins.
The VT pin also goes high to indicate a valid transmission. The 2 12 series of decoders are capable of decoding informations that consist of N bits of address and 12N bits of data. Of this series the HT12D is arranged to provide 8 address bits and 4 data bits and HT12F is used to decode 12 bits of address information. L stands for latch type data output. VT can be used as a momentary data output. These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may cause substantial damage to the device.
Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. The decoders receive data that are transmitted by an encoder and interpret the first N bits of code period as addresses and the last 12N bits as data where N is the address code number.
A signal on the DIN pin activates the oscillator which in turn decodes the incoming address and data. The decoders will then check the received address three times continuously.
If the received address codes all match the contents of the decoders local address the 12N bits of data are decoded to activate the output pins and the VT pin is set high to indicate a valid transmission. This will last unless the address code is incorrect or no signal is received. The output of the VT pin is high only when the transmission is valid.
Otherwise it is always low. Flowchart The oscillator is disabled in the standby state and activated when a logic high signal applies to the DIN pin. That is to say the DIN should be kept low if there is no signal input.
The HT12D on the other hand provides 4 latch type data pins whose data remain unchanged until new data are received. K EJ Rev November. Yt12f Office 4F-2 Ht12d. International sales hotline Holtek Semiconductor Shanghai Inc. Holtek Semiconductor Hong Kong Ltd. Kowloon Hong Kong Tel: Holmate Semiconductor Inc Fremont Blvd. The information appearing in this Data Sheet is believed to be accurate at the time of publication.
However Holtek assumes no responsibility arising from the use of the specifications described. The applications vatasheet herein are used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable without further modification nor recommends the use of its products for application that may present a risk to human life due to malfunction or otherwise.
Holteks products are not authorized for use as critical components in life support devices or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information please visit our web site at Rev November. Radiowe zdalne sterowanie 2 12 Series of Decoders Features Operating voltage: Multi-Purpose Encoders Features Operating voltage: It has bit of tri-state address pins providing a maximum ofor address.
It encodes data and address pins into a serial coded waveform suitable. This project is based. It is capable of 18 functions and a total of 75 ht112f. It is datasueet low cost mouse solution.
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The thresholds are set by external. General Description The is a 1. Two regulated current ports are designed. General Description The is a series of low dropout positive voltage regulators dayasheet a maximum dropout of. Datashert series features on-chip thermal limiting which provides protection.
General Description The is a monolithic switching regulator control circuit which contains the primary functions required for DC-DC converters. This device consists of internal temperature compensated. Features and benefits 3. Ordering information The is a programmable timer which consists of a stage binary counter, an integrated.
Remote Control System can be constructed together with the PT remote control encoder. Digital Thermometer and Thermostat www. DM74LS Dual 4-Bit Binary Counter General Description Each of these monolithic circuits contains eight masterslave flip-flops and additional gating to implement two individual four-bit counters in a. The DM74LS selects one-of-eight data sources. On-chip address and data latches Self-timed. The outputs are fully buffered for the highest noise. Receive Line Interface www.
The output current of each channel can be. ht12ff
The open-collector outputs require external pull-up. Start display at page:. Chester Oscar Casey 3 years ago Views: Radiowe zdalne sterowanie Radiowe zdalne sterowanie 2 12 Series of Decoders Features Operating voltage: It has bit of tri-state address pins providing a maximum dwtasheetor address More information.
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Protect Register V PP. The device More information. Modulation Frequency khz VDD. Spread spectrum technique More information. Two regulated current ports are designed More information. Applications General Description The is a series of low dropout positive voltage regulators with a maximum dropout of. The series features on-chip thermal limiting dataheet provides protection More information. Product specification IC24 Data Handbook.
HT12F HOLTEK, HT12F Datasheet
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Read Only Contactless Identification Device. The circuit More information. Features Y Typical propagation delay. Count up to Q 28 ns. Y Typical operating frequency dqtasheet MHz. On-chip address and data latches Self-timed More information.
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