Hot-selling and scarce PT7A6525JEX HDLC Controller PLCC44 spot stock

Product Features

Serial Interface

•     Supports two independent full-duplex HDLC channels (PT7A6526: one channel, PT7A6525/6525L: two channels)

-On-chip clock generation or external clock source

-On-chip DPLL type clock recovery for each channel

-Two independent baud-rate generators     ​(PT7A6526: one baudrate generator)

-Independent time-slot assignment for each channel with programmable time-slot length (1 to 256 bit)

•    Provides up to 64 bytes each for Transmit     and Receive FIFOs

•    Various data encoding modes

•    Modem control lines (RTS,CTS,CD)

•     Supports bus configuration by Collision Resolution

•    Programmable bit inversion

•    Data rate up to 8Mb/s

•    Transparent Mode selectable

•    Power Supply: 5V (6525/6526)or 3.3V (6525L)

•    Available Package:44-pin PLCC and 44-pin MQFP (PT7A6525 only)

Protocol Support

•     Supports LAPB/LAPD/SDLC/HDLC protocol in Auto Mode

•    Handles Bit-Oriented functions in all modes

•    Modulo-8 or modulo-128 operation

•    Programmable maximum packet size checking

•    Programmable time-out and retry conditions

Microprocessor Interface

•    Efficient transfer of data blocks by DMA or Interrupt Request

•    8-bit demultiplexed or multiplexed bus interface

•     Suitable for Intel or Motorola microprocessor

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Product Applications

•    Data link controller and protocol generators

•    Digital sets, PBXs and private packet networks

•    C-channel controller of data network interface circuits

•    D-channel controller for ISDN basic access

•    Interprocessor communications

Product Photos

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