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Description
The PCD3310T is a single-chip silicon gate CMOS integrated circuit designed for dual-standard dialling, supporting both pulse and dual-tone multi-frequency (DTMF) dialling. It features on-chip oscillators suitable for use with 3.58 MHz crystals.
Specifications and features
- Pulse, DTMF, and 'mixed mode' dialling
- Mixed mode dialling: start with pulse dial, end with DTMF dial (e.g. for control of DTMF user equipment via a pulse network)
- 23-digit memory stores last number dialled, or number noted during conversation (notepad)
- Redial of both PABX and external calls
- Supports 16 dial keys: 0 to 9, ∗, # A, B, C, and D
- Supports 4 function keys:
- Program (P) used to input notepad numbers
- Flash (FL) allows re-dialling without on-hook
- Redial (R) recalls and redials stored number
- Change from pulse dial to DTMF dial in mixed mode (>)
- DTMF timing:
- For manual dialling, maximum duration burst/pause intervals are user-determined, but at least minimum duration burst/pause intervals are ensured
- For redial, minimum duration burst/pause intervals are used
- On-chip voltage reference for supply and temperature independent tone output
- On-chip filtering for low output distortion (CEPT compatible)
- On-chip oscillator uses low-cost 3.58 MHz (TV colour burst) crystal or piezo resonator
- Uses standard single-contact or double-contact (common left open) keyboard
- Keyboard entries fully debounced
- Flash (register recall) output
Application Scenarios
The PCD3310T is commonly used in electronic devices that require dialling capabilities, such as telephones, intercom systems, and communication devices.
Comparison
Advantages- Supports both pulse and DTMF dialling
- Provides a 23-digit memory for storing dialled numbers or notes
- Allows redial of both PABX and external calls
- Features function keys for program input, flash dialling, redialling, and switching between pulse and DTMF dialling
- Utilizes on-chip voltage reference and filtering for reliable tone output
- Compatible with standard keyboards and fully debounced for accurate input
Disadvantages- Requires a 3.58 MHz crystal or piezo resonator for the on-chip oscillator
- DTMF timing intervals are limited to user-determined or minimum duration burst/pause
- The flash output is only for register recall
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
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Additional Information
- Datasheet: Download PCD3310T
- Chipdatas Part: CD86-PCD3310T
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/26 07:46 +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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