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PT7A6632

Features: •Provides up to 32 full-duplex HDLC/SDLC channels•Compatible with 1.544 Mb/s T1 and 2.048Mb/s CEPT PCM-30 carrier format•Provides on-board buffer memory management•Supports standard hyperchannel configuration and fully programmable hyperchannel configuration•...

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SeekIC No. : 004466610 Detail

PT7A6632: Features: •Provides up to 32 full-duplex HDLC/SDLC channels•Compatible with 1.544 Mb/s T1 and 2.048Mb/s CEPT PCM-30 carrier format•Provides on-board buffer memory management•...

PT7A6632 Data Sheet

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Part Number:
PT7A6632
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

•Provides up to 32 full-duplex HDLC/SDLC channels
•Compatible with 1.544 Mb/s T1 and 2.048Mb/s CEPT PCM-30 carrier format
•Provides on-board buffer memory management
•Supports standard hyperchannel configuration and fully programmable hyperchannel configuration
•Provides on-board CRC-16, automatic flag and zero insertion and deletion functions in HDLC format
•Provides programmable tri-state outputs to T1/E1 serial interface and FILL/MASK, thus enabling up to 8 devicesconnecting to a TDM bus
•Provides data rate adaptation functions
•Compatible with HDLC, SNA SDLC, X.25, X.75,LAPB, and LAPD protocols
•Support non-HDLC signaling channels
•Single +5V power supply
•Package: 68-pin PLCC


Application

•Primary rate interfaces
•Basic-rate D-channel controller
•Multi-channel HDLC interfaces


Pinout

Connection Diagram


Specifications

Storage Temperature......................................................-65 to +150
Ambient Temperature with Power Applied........................-40 to +85
Supply Voltage to Ground Potential (Inputs & VCC  Only).....-0.3 to 7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only)...-0.3 to 7.0V
DC Input Voltage..................................................................-0.3 to 7.0V
DC Output Current......................................................................120mA
Power Dissipation..............................................................................2W


Description

The PT7A6632 HDLC Controller is applied between an exter-nal memory and T1/E1 trunk interface to perform data trans-mission and reception. See Figure 1. Its signal attributes are shown in Figure 4.

PT7A6632 reads the data to be transmitted from the external memory in 8-bit parallel way, formats them and adapts data rate, then transmits the data to the T1/E1 trunk interface.

PT7A6632 receives serial data from the T1/E1 trunk interface,deformats them and adapts data rate, then stores the data into the external memory.

The channel operation modes are set up in the external memory by CPU. PT7A6632 reads the commands from the external memory and process data channel by channel, totally 64 chan-nels (32 for transmission and 32 for receive). Each channel mode can be set up in external memory independently by CPU.




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