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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I hy9200b currently building a burglar alarm with 2 PIR sensors from sparkfun. Would I just connect the data pin of the IC to the pin 1 of my arduino to send the serial data to it?


Below is a datasheet for my IC and I have spent many hours trying to get this to work Thanks in advance for any help. Every digit of a phone number to be transmitted is selected by a series of inputs which consist of 5-bit data.

He recommends Holtek B. Read times previous topic – next topic. Additional supplementary information with regard to packaging is listed below. When the IC is operating in the parallel mode, these pins become floating.

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.


HT9200A/HT9200B — DTMF Generators

As for the control timing diagram, see Figure 2. 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.

It has a serial and a paralell interface. For the most up-to-date information, please visit our web site at http: Both modes produce the same basic tone pairs for digital dialing, corresponding to the keys: The oscillator function can be implemented by Connect a standard 3.

Actually, I think it may be a little complex to use serial mode after viewing this document.

HT9200B Datasheet PDF

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. The relationship between the digital codes and the tone output frequency is shown in Table 1.

I think the serial interface would suit perfectly with the arduino but I may be wrong. The information appearing in this Data Sheet is believed to be accurate at the time of publication.

I promise to post start a build log for my alarm as soon as I know I can do it Ah, I took another look at the datasheet and you’re right. I’d really appreciate your help on this. I have these working so on to my next problem. However, Holtek assumes no responsibility arising from the use of the specifications described. X Y 1 I know I’ve seen threads from other people trying to interface Arduino to DTMF, maybe there’s a solution out there that you dztasheet adapt.


I have searched the internet far and wide for the past few days and I have come up blank.

HTB Datasheet(PDF) – Holtek Semiconductor Inc

Thanks for any insight. Hi Guys, I just received my Arduino in the post a few days ago and have been having great fun with it. I think what you want is an IC that takes something the arduino can talk to easily, like serial, i2c, etc. These are stress ratings only. X Y Pad No. Holtek reserves the right to alter its products without prior notification.

As for the control timing diagram, refer to Figure 1. As this information may be updated at regular intervals users are reminded to consult the Holtek website for the latest version of the package information.

Click on the relevant section to be transferred to the relevant website page. Here dwtasheet some code I wrote for that chip. Thus, these data input pins should not float.

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