DESIGN KIT AVAILABLE
DS3141/DS3142/DS3143/DS3144
Single/Dual/Triple/Quad
DS3/E3 Framers
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GENERAL DESCRIPTION
FEATURES
The DS3141, DS3142, DS3143, and DS3144
(DS314x) devices include all necessary circuitry to
frame and format up to four separate DS3 or E3
channels. Each framer in these devices is
independently configurable to support M23 DS3,
C-Bit Parity DS3, or G.751 E3. The framers interface
CꢀOne/Two/Three/Four Independent DS3/E3
Framers on a Single Die
CꢀFraming and Formatting to M23 DS3, C-Bit Parity
DS3, and G.751 E3
CꢀLIU Interface can be Binary (NRZ) or Dual-Rail
(POS/NEG)
to
a
variety of line interface units (LIUs),
CꢀB3ZS/HDB3 Encoder and Decoder
microprocessor
buses,
and
other
system
CꢀGenerate and Detect DS3/E3 Alarms
CꢀIntegrated HDLC Controller for Each Channel
CꢀIntegrated FEAC Controller for Each Channel
CꢀIntegrated Bit Error-Rate Tester (BERT) for Each
Channel
components without glue logic. Each DS3/E3 framer
has its own HDLC controller, FEAC controller, and
BERT, as well as full support for error detection and
generation, performance monitoring, and loopbacks.
CꢀLarge Performance-Monitoring Counters
CꢀLine, Diagnostic, and Payload Loopbacks
APPLICATIONS
SONET/SDH Muxes
PDH Muxes
CꢀExternally Controlled Transmit Overhead
Insertion Port
Digital Cross-Connect Systems
Access Concentrators
ATM and Frame Relay Equipment
Routers
CꢀSupport External Timing or Loop-Timing
CꢀFramers can be Powered Down When Not Used
Cꢀ8-Bit Processor Port Supports Muxed or
Nonmuxed Bus Operation (Intel or Motorola)
Cꢀ3.3V Supply with 5V Tolerant I/O
FUNCTIONAL DIAGRAM
Cꢀ144-Pin, 13mm x 13mm CSBGA Package
CꢀIEEE 1149.1 JTAG Support
LIU
SYSTEM
EACH FRAMER
INTERFACE
ORDERING INFORMATION
CLK
POS/NRZ
NEG
TRANSMIT
DATA
NO. OF
SYNC
FORMATTER
CLK
PART
TEMP RANGE
PIN-PACKAGE
FRAMERS
OVERHEAD
DS3141
DS3141N
DS3142
DS3142
DS3143
DS3143N
DS3144
DS3144N
1
1
2
2
3
3
4
4
144 CSBGA
144 CSBGA
144 CSBGA
144 CSBGA
144 CSBGA
144 CSBGA
144 CSBGA
144 CSBGA
0°C to +70LC
-40°C to +85LC
0°C to +70LC
-40°C to +85LC
0°C to +70LC
-40°C to +85LC
0°C to +70LC
-40°C to +85LC
POS/NRZ
NEG/LCV
CLK
CLK
RECEIVE
FRAMER
DATA
SYNC
Dallas
Semiconductor
DS314x
Pin Configurations appear at end of data sheet.
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.
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