HTB Datasheet, HTB Holtek DTMF Generators Datasheet, buy HTB DTMF IC. serial mode whereas the HTB contains a selectable serial/parallel mode interface for various applications such as security systems. HTA/HTB DTMF Generator With Serial Interface Features. Operating voltage: V~V Serial mode for the HTA Serial/parallel mode for the.

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Read times previous topic – next topic. Here is some code I wrote for that chip.

Holtek Semicon HTB – PDF Datasheet – Interface-Telecommunications In Stock |

I’d really appreciate your help on this. Actually, I think it may be a little complex to use serial mode after viewing this document. Thus, these data input pins should not float. As for the control timing diagram, refer to Figure 1. The relationship between the digital codes and the tone output frequency is shown in Table 1. I have searched the internet far and wide for the past few hy9200b and I have come up blank.

The applications mentioned 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.

HTB datasheet, Pinout ,application circuits HTA/HTB — DTMF Generators

Below is a datasheet for my IC ht9200h I have spent many hours trying to get this to work X Y 1 I think what you want is an IC that takes something the arduino can talk to easily, like serial, i2c, etc. I’m probably doing everything wrong as I am more of a programmer than electronic eng.


Would I just connect the data pin of the IC to the pin 1 of my arduino to send the serial data to it? BroHogan God Member Posts: I promise to post start a build log for my alarm as soon as I know I can do it Thanks in advance for any help. As this information may be updated at regular intervals users vatasheet reminded to consult the Holtek website for the latest version of the package information. Both modes produce the same basic tone pairs for digital dialing, corresponding to the keys: Additional supplementary information with regard to packaging is listed below.

X Y Pad No. He recommends Holtek B. Dimensions ddatasheet mm Min. The oscillator function can be implemented by Connect a standard 3. These are stress ratings only. I know I’ve seen threads from other people trying to interface Arduino to DTMF, maybe there’s a solution out there that you could adapt.

Ah, I took another look at the datasheet and you’re right.

HT9200B Datasheet

When the IC is operating in the serial mode, this pin becomes floating. Every digit of a phone number to be transmitted is ht92000b by a series of inputs which consist of 5-bit data.

As for the control timing diagram, see Figure 2. I think the serial interface would suit perfectly with the arduino but I may be wrong. I don’t think this is the ideal IC for your purpose, because it’s set up to receive inputs from a key numeric pad. When the IC is operating in the parallel mode, these pins become floating. The information appearing in this Data Sheet is believed to be accurate at the time of publication.


Holtek reserves the right to alter its products without prior notification.

Still no tutorials however. Thanks for any insight. The relationship between the digital codes and the tone output frequency is illustrated datasgeet Table 2. Hi Guys, I just received my Arduino in the post a few days ago and have been having great fun with it.

To get it to work, you’ll have to get the arduino to mimic the electrical behavior caused by the capacitance change that happens when you press one of those buttons. Click on the relevant section to be transferred to the relevant website page. For the most up-to-date information, please visit our web site at http: I have these working so on to my next problem. I am currently building a burglar alarm with 2 PIR sensors from sparkfun.

HT9200A/HT9200B — DTMF Generators

It has a serial and a paralell interface. However, Holtek assumes no responsibility arising from the use of the specifications described. 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.

Then the input data codes should be determined.