Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

XRT72L56IB Datasheet(PDF) 3 Page - Exar Corporation

Part # XRT72L56IB
Description  SIX CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
Download  486 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT72L56IB Datasheet(HTML) 3 Page - Exar Corporation

  XRT72L56IB Datasheet HTML 1Page - Exar Corporation XRT72L56IB Datasheet HTML 2Page - Exar Corporation XRT72L56IB Datasheet HTML 3Page - Exar Corporation XRT72L56IB Datasheet HTML 4Page - Exar Corporation XRT72L56IB Datasheet HTML 5Page - Exar Corporation XRT72L56IB Datasheet HTML 6Page - Exar Corporation XRT72L56IB Datasheet HTML 7Page - Exar Corporation XRT72L56IB Datasheet HTML 8Page - Exar Corporation XRT72L56IB Datasheet HTML 9Page - Exar Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 3 / 486 page
background image
áç
áç
áç
áç
XRT72L56
SIX CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
PRELIMINARY
REV. P1.1.2
I
TABLE OF CONTENTS
GENERAL DESCRIPTION ............................................................................................... 1
FEATURES
................................................................................................................................................. 1
APPLICATIONS
........................................................................................................................................... 1
Figure 1. Block Diagram of the XRT72L56 ........................................................................................... 1
Figure 2. Pin Out of the XRT72L56 & 58 ............................................................................................... 2
ORDERING INFORMATION ............................................................................................ 2
PIN DESCRIPTION .......................................................................................................... 3
ELECTRICAL CHARACTERISTICS .............................................................................. 29
ABSOLUTE MAXIMUMS ............................................................................................................................. 29
DC ELECTRICAL CHARACTERISTICS ......................................................................................................... 29
AC ELECTRICAL CHARACTERISTICS ......................................................................................................... 29
AC ELECTRICAL CHARACTERISTICS (CONT.) ............................................................................................ 31
1.0 Timing Diagrams ................................................................................................................................. 36
Figure 3. Timing Diagram for Transmit Payload Input Interface, when the XRT72L56 Device is operating in
both the DS3 and Loop-Timing Modes ................................................................................................. 36
Figure 4. Timing Diagram for the Transmit Payload Input Interface, when the XRT72L56 Device is operating
in both the DS3 and Local-Timing Modes ............................................................................................. 36
Figure 5. Timing Diagram for the Transmit Payload Data Input Interface, when the XRT72L56 Device is
operating in both the DS3/Nibble and Looped-Timing Modes .............................................................. 37
Figure 6. Timing Diagram for the Transmit Payload Data Input Interface, when the XRT72L56 Device is
operating in the DS3/Nibble and Local-Timing Modes .......................................................................... 37
Figure 7. Timing Diagram for the Transmit Overhead Data Input Interface (Method 1 Access) .......... 38
Figure 8. Timing Diagram for the Transmit Overhead Data Input Interface (Method 2 Access) .......... 38
Figure 9. Transmit LIU Interface Timing - Framer is configured to update "TxPOS" and "TxNEG" on the
rising edge of "TxLineClk" ..................................................................................................................... 39
Figure 10. Transmit LIU Interface Timing - Framer is configured to update "TxPOS" and "TxNEG" on the
falling edge of "TxLineClk" .................................................................................................................... 39
Figure 11. Receive LIU Interface Timing - Framer is configured to sample "RxPOS" and "RxNEG" on the
rising edge of "RxLineClk" ..................................................................................................................... 40
Figure 12. Receiver LIU Interface Timing - Framer is configured to sample "RxPOS" and "RxNEG" on the
falling edge of "RxLineClk" .................................................................................................................... 40
Figure 13. Receive Payload Data Output Interface Timing .................................................................. 41
Figure 14. Receive Payload Data Output Interface Timing (Nibble Mode Operation) ......................... 41
Figure 15. Receive Overhead Data Output Interface Timing (Method 1 - Using RxOHClk) ................ 42
Figure 16. Receive Overhead Data Output Interface Timing (Method 2 - Using RxOHEnable) .......... 42
Figure 17. Microprocessor Interface Timing - Intel Type Programmed I/O Read Operations .............. 43
Figure 18. Microprocessor Interface Timing - Intel Type Programmed I/O Write Operations .............. 43
Figure 19. Microprocessor Interface Timing - Intel Type Read Burst Access Operation ..................... 44
Figure 20. Microprocessor Interface Timing - Intel Type Write Burst Access Operation ..................... 44
Figure 21. Microprocessor Interface Timing - Motorola Type Programmed I/O Read Operation ........ 45
Figure 22. Microprocessor Interface Timing - Motorola Type Programmed I/O Write Operation ......... 45
Figure 23. Microprocessor Interface Timing - Reset Pulse Width ........................................................ 46
2.0 The Microprocessor Interface Block ................................................................................................. 47
2.1 CHANNEL SELECTION WITHIN THE XRT72L56 DEVICE .......................................................................................... 47
TABLE 1: THE RELATIONSHIP BETWEEN ADDRESS BITS A9, A10 AND A11 THE SELECTED CONFIGURATION REG-
ISTER
BANK ............................................................................................................................................ 47
Figure 24. Simple Block Diagram of the Microprocessor Interface Block, within the Framer IC .......... 48
2.2 THE MICROPROCESSOR INTERFACE BLOCK SIGNAL .............................................................................................. 48
TABLE 2: DESCRIPTION OF THE MICROPROCESSOR INTERFACE SIGNALS THAT EXHIBIT CONSTANT ROLES IN BOTH
THE
INTEL AND MOTOROLA MODES .......................................................................................................... 49
TABLE 3: PIN DESCRIPTION OF MICROPROCESSOR INTERFACE SIGNALS - WHILE THE MICROPROCESSOR INTER-
FACE IS
OPERATING IN THE INTEL MODE .................................................................................................. 49


Similar Part No. - XRT72L56IB

ManufacturerPart #DatasheetDescription
logo
Exar Corporation
XRT72L50 EXAR-XRT72L50 Datasheet
2Mb / 471P
   SINGLE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
XRT72L50IQ EXAR-XRT72L50IQ Datasheet
2Mb / 471P
   SINGLE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
XRT72L52 EXAR-XRT72L52 Datasheet
2Mb / 480P
   TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
XRT72L52IQ EXAR-XRT72L52IQ Datasheet
6Mb / 480P
   TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
XRT72L53 EXAR-XRT72L53 Datasheet
5Mb / 467P
   THREE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
More results

Similar Description - XRT72L56IB

ManufacturerPart #DatasheetDescription
logo
Exar Corporation
XRT72L50 EXAR-XRT72L50 Datasheet
2Mb / 471P
   SINGLE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
XRT72L52 EXAR-XRT72L52 Datasheet
2Mb / 480P
   TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
XRT72L53 EXAR-XRT72L53 Datasheet
5Mb / 467P
   THREE CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
XRT72L54 EXAR-XRT72L54 Datasheet
5Mb / 484P
   FOUR CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
XRT72L58 EXAR-XRT72L58 Datasheet
5Mb / 486P
   EIGHT CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
XR72L52 EXAR-XR72L52 Datasheet
6Mb / 480P
   TWO CHANNEL DS3/E3 FRAMER IC WITH HDLC CONTROLLER
logo
M/A-COM Technology Solu...
28330-DSH-002-A MA-COM-28330-DSH-002-A_15 Datasheet
897Kb / 101P
   DS3/E3 Framer with 52 Mbps HDLC Controller
28330-DSH-002-A MA-COM-28330-DSH-002-A Datasheet
897Kb / 101P
   DS3/E3 Framer with 52 Mbps HDLC Controller
logo
Synaptics Incorporated.
CN8330 CONEXANT-CN8330 Datasheet
586Kb / 101P
   DS3/E3 Framer with 52 Mbps HDLC Controller
logo
Exar Corporation
XRT7250 EXAR-XRT7250 Datasheet
5Mb / 463P
   DS3/E3 FRAMER IC
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com