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Description
The EM91450BP is a series of tone/pulse switchable dialers that provides necessary functions of a telephone set for application in any environment. It is composed of a T/P dialer and modern LCD drivers series data output port. The EM91450BP supports pulse dialing, tone (DTMF) dialing, handfree dialing, keying tone, and lock functions. It also features a lock function to inhibit toll dialing operation and prevent illegal connect external phone. Moreover, it includes a ring detector to prevent illegal dialing from pocket dialer and a Serial Data Output (SDO) function to drive LCD driver and voice synthesizer for displaying dialing numbers and function operating icons on the LCD screen. The EM91450BP is designed with an I.P.P. detect function (Illegal Parallel Phone Detect) to detect and alarm illegal users attempting to connect an external phone.
Specifications and features
- I.P.P. detect function prevents the illegal connect external phone.
- SDO function supports LCD driver and voice synthesizer to indicate dialing numbers and function operating icons.
- Lock function provides conventionality key lock and password lock operations.
- Ring detector is designed to prevent illegal dialing from pocket dialer.
- Line hold function is designed for stopping conversation temporarily.
- Tone/Pulse switchable.
- Wide operating voltage from 2.0 V to 5.5 V.
- Low operating current, 0.15 mA (Pulse) and 0.3 mA (Tone) typically.
- Adding resistor on keyboard scan pin that can select many telephone specifications, such as: Pulse rate, M/B ratio, Flash time, lock dialing functions.
- 13 set one touch or (3 set one touch and 10 set two touch) repertory memory, each one can hold data up to 16 digits.
- A 32-digit LNB (last number) redial memory.
- Keytone function provides rapidly keying recognition.
- Handfree function provides on-hook dialing and speakerphone application.
- Pause and P-T time are fixed to 3.6 seconds.
- Tone duration and inter-tone pause time are fixed to 98 ms.
- Using 3.579545 MHz crystal or ceramic resonator.
- Package forms: PDIP, skinny.
Application Scenarios
The EM91450BP can be used in various applications, including telephones, communication systems, and any other devices that require dialing functions. It is suitable for both residential and commercial environments.
Comparison
Advantages- Provides necessary functions for telephone set in any environment.
- Supports both pulse and tone (DTMF) dialing.
- Includes a lock function to inhibit toll dialing operation and prevent unauthorized use.
- Features a ring detector to prevent illegal dialing.
- Wide operating voltage range.
- Low operating current.
- Multiple telephone specifications can be selected using resistors on the keyboard scan pin.
- Includes one-touch and multi-touch repertory memory.
- Redial memory for the last dialed number.
- Keytone function for rapid keying recognition.
- Handfree function for on-hook dialing and speakerphone application.
- Uses crystal or ceramic resonator for accurate tone generation.
- Available in different package forms.
Disadvantages- Pause and P-T time are fixed to 3.6 seconds.
- Tone duration and inter-tone pause time are fixed to 98 ms.
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
Shipping fee:
- - Automatic Email notification (above 5 times)
- - View in your order page
Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
- - Automatic Email notification (above 5 times)
- - View in your order page
How to Buy:
- - In-stock, Add to cart > Check out > Submit order > Complete payment >Delivery.
- - Inquiry, Add to inquiry sheet/Submit bom/inquire file/Send email us > Quote > Place order > Complete payment >Delivery.
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Payment:
- - Paypal,Credit Card includes Visa, Master, American Express.
- - Wire transfer, include Local bank transfer.
- - Western Union.
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Additional Information
- Datasheet: Download EM91450BP
- Chipdatas Part: CD94-EM91450BP
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/03 08:04 +0800
Refund
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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Payment Method
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The fee is charged according to the rule of PayPal.
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The fee is charged according to the rule of PayPal.
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Western Union charge US$0.00 banking fee.
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We recommend to use bank transfer for large orders to save on handling fees.
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