DS2156L+ Maxim Integrated Products, DS2156L+ Datasheet - Page 24

• Manufacturer Part Number: DS2156L+
• Description: IC TXRX T1/E1/J1 1-CHIP 100-LQFP
• Manufacturer: Maxim Integrated Products

Specifications of DS2156L+

• Function: Single-Chip Transceiver
• Interface: E1, J1, T1, TDM, UTOPIA II
• Number Of Circuits: 1
• Voltage - Supply: 3.14 V ~ 3.47 V
• Current - Supply: 75mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Includes: BERT Generator and Detector, CMI Coder and Decoder, HDLC Controller
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power (watts): -

Signal Name:
Signal Description:
Signal Type:
An extracted pulse, one RCLK wide (elastic store disabled) or one RSYSCLK wide (elastic store enabled), is
output at this pin that identifies multiframe boundaries.
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 connected low in applications that do not use the receive-side elastic store. See Section 28 for
details on 4.096MHz and 8.192MHz operation using the IBO.
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 CCR1.0 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 5µs.
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 by either automatic or manual intervention. Used to alert downstream
equipment of the condition.
Signal Name:
Signal Description:
Signal Type:
A user-selectable synthesized clock output that is referenced to the clock that is output at the RCLK pin.
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
BPCLK
Backplane Clock
Output
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