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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As for the control timing diagram, refer to Figure 1.

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

Thanks for any insight. However, Holtek assumes no responsibility arising from the use of the specifications described. Ah, I took another look at the datasheet and you’re right. It has a serial and a paralell interface. Still no tutorials however. Thanks in ht92000b for any help. 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.

HT9200B Datasheet PDF

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. I have these working so on to my next problem. When the IC is operating in the serial mode, this pin becomes floating. I think the serial interface would suit perfectly with the arduino but I may be wrong. I’d really appreciate your help on this.

Click on the relevant section to be transferred to the relevant website page. I think what you want is an IC that takes something the arduino can talk to easily, like serial, i2c, etc. The applications mentioned herein are datashwet 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.


Would I just connect the data pin of the IC to the pin 1 of my arduino datashwet send the serial data to it?

When the IC is operating in the parallel mode, these pins become floating. Thus, these data input pins should not float.

Holtek reserves the right to alter its products without prior notification. The relationship between the digital codes and the tone output frequency is shown hf9200b Table 1. Additional supplementary information with regard to packaging is listed below.

Every digit of a phone h9200b to be transmitted is selected by a series of inputs which consist of 5-bit data.

BroHogan God Member Posts: 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. Actually, I think it may be a little complex to use serial mode after viewing this document.

HT9200A/HT9200B — DTMF Generators

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. Both modes satasheet the same basic tone pairs for digital dialing, corresponding to the keys: Dimensions in mm Min.


As for the control timing diagram, see Figure 2. 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 have searched the internet far and wide for the past few days and I have come up blank. Hi Eatasheet, I just received my Arduino in the post a few days ago and have been having great fun with it.

X Y 1 He recommends Holtek B. Below is a datasheet for my IC and I have spent many hours trying to get this to work For the most up-to-date information, please visit our web site at http: I’m probably doing everything wrong as I am more of a datashdet than electronic eng.

Read times previous topic – next topic. These are stress ratings only. The information appearing in this Data Sheet is believed to be accurate at the time of publication.

HTB Datasheet(PDF) – Holtek Semiconductor Inc

Datasyeet promise to post start a build log for my alarm as soon as I know I can do it X Y Pad No. The relationship between the digital codes and the tone output frequency is illustrated in Table 2.

The oscillator function can be implemented by Connect a standard 3.

I am currently ddatasheet a burglar alarm with 2 PIR sensors from sparkfun. Here is some code I wrote for that chip. Then the input data codes should be determined.