DS21354LN+ Maxim Integrated Products, DS21354LN+ Datasheet - Page 18
![IC TXRX E1 1-CHIP 3.3V 100-LQFP](/photos/6/82/68291/406-100-lqfp_sml.jpg)
DS21354LN+
Manufacturer Part Number
DS21354LN+
Description
IC TXRX E1 1-CHIP 3.3V 100-LQFP
Manufacturer
Maxim Integrated Products
Datasheet
1.DS2154LNA2.pdf
(124 pages)
Specifications of DS21354LN+
Function
Single-Chip Transceiver
Interface
E1, HDLC
Number Of Circuits
1
Voltage - Supply
3.14 V ~ 3.47 V
Current - Supply
75mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
100-LQFP
Includes
Remote and AIS Alarm Detector / Generator
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
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Signal Name:
Signal Description:
Signal Type:
An extracted 8kHz pulse, one RCLK wide, is output at this pin that identifies frame boundaries.
Signal Name:
Signal Description:
Signal Type:
If the receive-side elastic store is enabled, an extracted pulse, one RSYSCLK wide, is output at this pin
that identifies multiframe boundaries. If the receive-side elastic store is disabled, then this output will
output multiframe boundaries associated with RCLK.
Signal Name:
Signal Description:
Signal Type:
Updated on the rising edge of RCLK with the data out of the receive-side framer.
Signal Name:
Signal Description:
Signal Type:
1.544MHz, 2.048MHz, 4.096MHz, or 8.192MHz clock. Only used when the receive-side elastic store
function is enabled. Should be tied low in applications that do not use the receive-side elastic store. See
Section
Signal Name:
Signal Description:
Signal Type:
Outputs signaling bits in a PCM format. Updated on rising edges of RCLK when the receive-side elastic
store is disabled. Updated on the rising edges of RSYSCLK when the receive-side elastic store is enabled.
Signal Name:
Signal Description:
Signal Type:
A dual function output that is controlled by the TCR2.0 control bit. This pin can be programmed to either
toggle high when the synchronizer is searching for the frame and multiframe or to toggle high if the
TCLK pin has not been toggled for 5ms.
Signal Name:
Signal Description:
Signal Type:
Set high when the line interface detects a carrier loss.
Signal Name:
Signal Description:
Signal Type:
Set high when the signaling data is frozen via either automatic or manual intervention. Used to alert
downstream equipment of the condition.
17
for details on 4.096MHz and 8.192MHz operation using the Interleave Bus Option.
RFSYNC
Receive Frame Sync
Output
RMSYNC
Receive Multiframe Sync
Output
RDATA
Receive Data
Output
RSYSCLK
Receive System Clock
Input
RSIG
Receive Signaling Output
Output
RLOS/LOTC
Receive Loss of Sync / Loss of Transmit Clock
Output
RCL
Receive Carrier Loss
Output
RSIGF
Receive Signaling Freeze
Output
18 of 124
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