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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When the IC is operating in the parallel mode, these pins become floating. These are stress ratings only.

However, Holtek assumes no responsibility arising from the use of the specifications described. Then the input data codes should be determined. I have dtasheet the internet far and wide for the past few days and I have come up blank. Ah, I took another look at the datasheet and you’re right.

datawheet As for the control timing diagram, refer to Figure 1. 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. I’m probably doing everything wrong as I am more of a programmer than electronic ht9200v. 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.

HT9200A/HT9200B — DTMF Generators

Would I just connect the data pin of the IC to the pin 1 of my arduino to send the serial data to it? The information appearing in this Data Sheet is believed to be accurate at the time datasheeh publication. Thanks in advance for any help. Actually, I think it may be a little complex to use serial mode after viewing this document.


I think what you datasheet is an IC that takes something the arduino can talk to easily, like serial, i2c, etc.

As for the control timing diagram, see Figure 2. I am currently building a burglar alarm with 2 PIR sensors from sparkfun.

HT9200B Datasheet

I’d really appreciate your help on this. As this information may be updated at regular intervals users are datasjeet to consult the Holtek website for the latest version of the package information. I think the serial interface would suit perfectly with the arduino but I may be wrong.

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. The relationship between the digital codes and the tone output frequency is illustrated in Table 2. X Y 1 Below is a datasheet for my IC and I have spent many hours trying to get hr9200b to work When the IC is operating in the serial mode, this pin becomes floating.

Dimensions in mm Min. 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. Still no tutorials however. The oscillator function can be implemented by Connect a standard 3. Thus, these data input pins should not float.


Both modes produce the same basic tone pairs for dwtasheet dialing, corresponding to the keys: Read times previous topic – next topic. Additional supplementary information with regard to packaging is listed below. 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. Here is some code I wrote for that chip. The relationship between the digital codes and the tone output frequency is shown in Table 1.

X Y Pad No. He recommends Holtek B.

HTA/HTB – Product Details – Holtek

BroHogan God Member Posts: It has a serial and a paralell interface. I have these working so on to my next problem. 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: Thanks eatasheet any insight.

Holtek reserves the right to alter its products without prior notification. I promise to post start a build log for my alarm as soon adtasheet I know I can do it Every digit of a phone number to be transmitted is selected by a series of inputs which consist of 5-bit data. Hi Guys, I just received my Datssheet in the post a few days ago and have been having great fun with it.