DS2141AQ/T&R Maxim Integrated Products, DS2141AQ/T&R Datasheet - Page 2
![IC CONTROLLER T1 5V 44-PLCC](/photos/6/62/66291/175-44-plcc_sml.jpg)
DS2141AQ/T&R
Manufacturer Part Number
DS2141AQ/T&R
Description
IC CONTROLLER T1 5V 44-PLCC
Manufacturer
Maxim Integrated Products
Datasheet
1.DS2141AQ.pdf
(39 pages)
Specifications of DS2141AQ/T&R
Controller Type
T1 Controller
Interface
Parallel/Serial
Voltage - Supply
4.5 V ~ 5.5 V
Current - Supply
10mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
44-LCC, 44-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DS2141AQ/T&RDS2141AQ/T&R
Manufacturer:
Maxim Integrated
Quantity:
10 000
DS2141A
link. The device fully meets all of the latest T1 specifications including ANSI T1.403-1989, AT&T TR
62411 (12-90), and CCITT G.704 and G.706.
1.0 INTRODUCTION
The DS2141A T1 Controller has four main sections: the receive side, the transmit side, the line interface
controller, and the parallel control port. See the block diagram below. On the receive side, the device will
clock in the serial T1 stream via the RPOS and RNEG pins. The synchronizer will locate the frame and
multiframe patterns and establish their respective positions. This information will be used by the rest of
the receive side circuitry.
The DS2141A is an “off-line” framer, which means that all of the T1 serial stream that goes into the
device will come out of it unchanged. Once the T1 data has been framed to, the robbed-bit signaling data
and FDL can be extracted. The 2-frame elastic stores can either be enabled or bypassed.
The transmit side clocks in the unframed T1 stream at TSER and adds in the framing pattern, the robbed-
bit signaling, and the FDL. The line interface control port will update line interface devices that contain a
serial port. The parallel control port contains a multiplexed address and data structure which can be
connected to either a microcontroller or microprocessor.
DS2141A BLOCK DIAGRAM
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