XRT94L33IB-L Exar Corporation, XRT94L33IB-L Datasheet - Page 91

• Manufacturer Part Number: XRT94L33IB-L
• Description: IC MAPPER DS3/E3/STS-1 504TBGA
• Manufacturer: Exar Corporation

Specifications of XRT94L33IB-L

• Applications: Network Switches
• Interface: Bus
• Voltage - Supply: 3.14 V ~ 3.47 V
• Package / Case: 504-LBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

xr
3-CHANNEL DS3/E3/STS-1 TO STS-3/STM-1 MAPPER IC DATA SHEET
AC12
F20
RXHDLCDAT_7_1
RXHDLCDAT_0_2
STS1RXD_D7_1
STS1RXD_D0_2
RXGFCMSB_2
RXDS3CLK_1
O
O
CMOS
CMOS
Receive STS-1 Telecom Bus – Channel 1 – Output Data
Bus pin number 7:
The exact function of this output pin depends upon whether
the STS-1 Telecom Bus Interface, associated with Channel 1
is enabled or not.
If STS-1 Telecom Bus (Channel 1) has been enabled –
STS-1 Receive Telecom Bus – Output Data bus pin number 7:
STS1RXD_D7_1
This output pin along with “STS1RXD_D_1[6:0]” function as
the “STS-1 Receive (Drop) Telecom Bus – Output Data Bus
for Channel 1. The STS-1 Telecom Bus Interface will update
the
“STS1RXD_CK_1.
Note:
RXHDLCDAT_7_1 (Receive HDLC block data output –
Channel 1 – Output Data Bus pin 7)
RXDS3CLK_1 (Receive DS3 clock – Channel 1)
Receive STS-1 Telecom Bus – Channel 2 – Output Data
Bus pin number 0:
The exact function of this output pin depends upon whether
the STS-1 Telecom Bus Interface, associated with Channel 2
is enabled or not.
If STS-1 Telecom Bus (Channel 2) has been enabled –
STS-1 Receive Telecom Bus – Output Data bus pin number 0:
STS1RXD_D0_2
This output pin along with “STS1RXD_D_2[7:1]” function as
the “STS-1 Receive (Drop) Telecom Bus – Output Data Bus
for Channel 2. The STS-1 Telecom Bus Interface will update
the
“STS1RXD_CK_2.
Note:
RXHDLCDAT_0_2 (Receive HDLC block data output –
Channel 2 – Output Data Bus pin 0)
RXGFCMSB_2 (Receive GFC MSB Indicator – Channel 2)
91
data
data
Significant Bit) for the STS-1 Receive (Drop)
Telecom Bus Interface – Output Data Bus (Channel
1).
Significant Bit) of the Receive (Drop) Telecom Bus
for Channel 2.
This output pin functions as the MSB (Most
This input pin functions as the LSB (Least
via
via
this
this
output
output
upon
upon
the
the
rising
rising
XRT94L33
edge
edge
Rev.1.2.0.
of
of