DS21455
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Manufacturer Part#:

DS21455

Product Category: IC Chips
Manufacturer: Maxim Integrated
Description: IC TXRX QUAD T1/E1/J1 BGA
  datasheetDS21455 Datasheet
Package: BGA256
Quantity: 477 PCS
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level(MSL): 3(168 Hours)
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Manufacturer: Maxim Integrated
Product Category: IC Chips
Series: DS21455
Product: T1/E1/J1 Line Interface Units - LIUs
Packaging: Tray
Mounting-Style: SMD/SMT
Package-Case: 256-BGA
Operating-Temperature: *
Mounting-Type: Surface Mount
Function: Line Interface Unit (LIU)
Number-of-Channels: 4 Channel
Interface: *
Voltage-Supply: 3.135 V ~ 3.465 V
Supplier-Device-Package: 256-BGA (27x27)
Number-of-Circuits:
Power-Watts: *
Current-Supply: *
Data-Rate: 64 kb/s
Maximum-Operating-Temperature: + 70 C
Minimum-Operating-Temperature: 0 C
Operating-Supply-Voltage: 3.3 V
Part-#-Aliases: 90-21455-000
Supply-Voltage-Max: 3.465 V
Supply-Voltage-Min: 3.135 V
Package-Case: BGA
Features, Applications

Features, Applications


The DS21455 and DS21458 are quad monolithic devices featuring independent transceivers that can be software configured for or J1 operation. Each is composed of a line interface unit (LIU), framer, HDLC controllers, and a TDM backplane interface, and is controlled via an 8-bit parallel port configured for Intel or Motorola bus operations. The is a direct replacement for the older DS21Q55 quad MCM device. The in a smaller package (17mm CSBGA) and featuring an improved controller interface, is software compatible with the older DS21Q55.


*The JTAG function on the is a single controller for all four transceivers, unlike the DS21Q55, which has a JTAG controller-per-transceiver architecture.


FEATURES

Four Independent Transceivers, Each Having the Following Features: § Complete T1 (DS1)/ISDN-PRI/J1 Transceiver Functionality § Complete E1 (CEPT) PCM-30/ISDNPRI Transceiver Functionality § Short- and Long-Haul Line Interface for Clock/Data Recovery and Waveshaping § CMI Coder/Decoder § Crystal-Less Jitter Attenuator § Fully Independent Transmit and Receive Functionality § Dual HDLC Controllers § On-Chip Programmable BERT Generator and Detector § Internal Software-Selectable Receiveand Transmit-Side Termination Resistors for 75/100/120 T1 and E1 Interfaces § Dual Two-Frame Elastic-Store Slip Buffers that can Connect to Asynchronous Backplanes or 2.048MHz Clock Output Synthesized to Recovered Network Clock § Programmable Output Clocks for Fractional E1, H0, and H12 Applications § Interleaving PCM Bus Operation § 8-Bit Parallel Control Port, Multiplexed or Nonmultiplexed, Intel or Motorola § IEEE 1149.1 JTAG-Boundary Scan § 3.3V Supply with 5V Tolerant Inputs and Outputs § DS21455 Directly Replaces DS21Q55 § Signaling System 7 (SS7) Support § RAI-CI, AIS-CI Support


APPLICATIONS

Routers Channel Service Units (CSUs) Data Service Units (DSUs) Muxes Switches Channel Banks T1/E1 Test Equipment


PART DS21458 DS21458N TEMP RANGE to +85°C PIN-PACKAGE 256 BGA 27mm) 256 BGA 27mm) 256 CSBGA 17mm) 256 CSBGA x 17mm)


DALLAS is a registered trademark of Dallas Semiconductor Corp. MAXIM is a registered trademark of Maxim Integrated Products, Inc.


Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.


DESCRIPTION................................................................................................................................................9 STANDARDS...................................................................................................................... 10 2. FEATURE HIGHLIGHTS...............................................................................................................................11 2.1 GENERAL.......................................................................................................................... 11 2.2 LINE INTERFACE................................................................................................................ 11 2.3 CLOCK SYNTHESIZER........................................................................................................ 11 2.4 JITTER ATTENUATOR......................................................................................................... 12 2.5 FRAMER/FORMATTER........................................................................................................ 12 2.6 SYSTEM INTERFACE........................................................................................................... 13 2.7 HDLC CONTROLLERS....................................................................................................... 13 2.8 TEST AND DIAGNOSTICS.................................................................................................... 13 2.9 EXTENDED SYSTEM INFORMATION BUS.............................................................................. 14 2.10 CONTROL PORT................................................................................................................ 14 3. BLOCK DELTA...........................................................................................................................17 4.1 PACKAGE.......................................................................................................................... 17 4.2 CONTROLLER INTERFACE................................................................................................... 17 4.3 ESIB FUNCTION................................................................................................................ 17 4.4 FRAMER/LIU INTERIM SIGNALS.......................................................................................... 17 5. PIN FUNCTION DESCRIPTION....................................................................................................................20 5.1 TRANSMIT SIDE PINS......................................................................................................... 20 5.2 RECEIVE SIDE PINS........................................................................................................... 22 5.3 PARALLEL CONTROL PORT PINS........................................................................................ 24 5.4 EXTENDED SYSTEM INFORMATION BUS.............................................................................. 26 5.5 JTAG TEST ACCESS PORT PINS........................................................................................ 26 5.6 LINE INTERFACE PINS........................................................................................................ 27 5.7 SUPPLY PINS.................................................................................................................... 28 5.8 PIN DESCRIPTIONS............................................................................................................ 29 5.9 PACKAGES........................................................................................................................ 39 6. PARALLEL PORT.........................................................................................................................................41 6.1 REGISTER MAP................................................................................................................. 41 7. SPECIAL PER-CHANNEL REGISTER OPERATION..................................................................................46 8. PROGRAMMING MODEL.............................................................................................................................48 8.1 POWER-UP SEQUENCE...................................................................................................... 49 8.1.1 Master Mode Register........................................................................................................49 8.2 INTERRUPT HANDLING....................................................................................................... 50 8.3 STATUS REGISTERS.......................................................................................................... 50 8.4 INFORMATION REGISTERS.................................................................................................. 51 8.5 INTERRUPT INFORMATION REGISTERS................................................................................ 51 9. CLOCK 10. T1 FRAMER/FORMATTER CONTROL 10.1 T1 CONTROL REGISTERS.................................................................................................. 10.2 T1 TRANSMIT TRANSPARENCY........................................................................................... 58 10.3 AIS-CI AND RAI-CI GENERATION AND DETECTION............................................................. 10.4 T1 RECEIVE-SIDE DIGITAL-MILLIWATT CODE GENERATION................................................. 10.5 T1 INFORMATION REGISTER............................................................................................... 11. E1 FRAMER/FORMATTER CONTROL 11.1 E1 CONTROL REGISTERS.................................................................................................. 64 11.2 AUTOMATIC ALARM GENERATION....................................................................................... 68 11.2.1 Auto AIS...........................................................................................................................68 11.2.2 Auto RAI...........................................................................................................................68 11.2.3 Auto 11.3 E1 INFORMATION REGISTERS............................................................................................ 69 12. COMMON CONTROL AND STATUS 270 1.



Search Part number : "DS214" Included word is 15
Part Number Manufacturer Package Quantity Description
DS21455+ Maxim Integrated BGA256 72 IC LIU QUAD T1/E1/J1 256-BGA
DS21458 Maxim Integrated BGA256 630 IC TXRX QUAD T1/E1/J1 CSBGA
DS21458+ Maxim Integrated CSBGA-256PIN 152 IC LIU QUAD T1/E1/J1 256-CSBGA
DS21458N Maxim Integrated 256-LBGA, CSBGA 69 IC TXRX QUAD T1/E1/J1 CSBGA
DS21458N+ Maxim Integrated 256-LBGA, CSBGA 168 IC LIU QUAD T1/E1/J1 256-CSBGA
DS2141A Maxim Integrated 40-DIP (0.600", 15.24mm) 118 IC CONTROLLER T1 5V 40-DIP
DS2148T Maxim Integrated 44-TQFP 4489 IC LIU E1/T1/J1 5V 44-TQFP
DS2141AQ Maxim Integrated 44-LCC (J-Lead) 3429 IC CONTROLLER T1 5V 44-PLCC
DS2148TN+ Maxim Integrated 44-TQFP 140 IC LIU E1/T1/J1 5V 44-TQFP
DS2143Q Maxim Integrated 44-LCC (J-Lead) 5687 IC CONTROLLER E1 5V LP 44-PLCC
DS2143Q+ Maxim Integrated 44-LCC (J-Lead) 580 IC CONTROLLER E1 5V LP 44-PLCC
DS2149N+ DALLAS PLCC28 90
DS2149Q+ Maxim Integrated 28-LCC (J-Lead) 105 IC LIU T1/J1 5V 28-PLCC
DS21448 Maxim Integrated TQFP 481 IC LIU QUAD E1/T1/J1 144-BGA
DS21448+ MAXIM BGA144 84
DS21455 RELATED PRODUCT PICTURE
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