78P2351-IGT/F Maxim Integrated Products, 78P2351-IGT/F Datasheet - Page 22

• Manufacturer Part Number: 78P2351-IGT/F
• Description: LINE INTERFACE UNIT 100-LQFP
• Manufacturer: Maxim Integrated Products

Specifications of 78P2351-IGT/F

• Number Of Channels Per Chip: 1
• Propagation Delay Time: 10 ns
• Supply Voltage (max): 3.45 V
• Supply Voltage (min): 3.15 V
• Maximum Operating Temperature: + 85 C
• Package / Case: LQFP-100
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

SERIAL-PORT PINS
NAME
SEN_CMI
SCK_MON
SDI_PAR
SDO_E4
POWER AND GROUND PINS
It is recommended that all supply pins be connected to a single power supply plane and all ground pins be
connected to a single ground plane. See application note for decoupling guidelines.
NAME
VCC
VDD
GND
VSS
TGND
Page: 22 of 42
PIN DESCRIPTION
3, 10, 16, 56, 66, 69, 76,
4, 11, 17, 55, 65, 68, 77,
84, 85, 86, 87, 89, 95
PIN
72
73
71
70
80, 88, 92, 98
31, 35, 39, 43
30, 34, 38, 42
TYPE
COZ/
PIN
CIU
CIS
63
(continued)
CI
CI
DESCRIPTION
[SPSL=1] Serial-Port Enable:
[SPSL=0] Medium Select:
[SPSL=1] Serial Clock:
[SPSL=0] Receive Monitor Mode Enable:
[SPSL=1] Serial Data Input:
[SPSL=0] Data Width Select:
[SPSL=1] Serial Data Output:
[SPSL=0] Rate Select:

2006 Teridian Semiconductor Corporation
High during read and write operations. Low disables the serial port.
While SEN is low, SDO remains in high impedance state, and SDI and
SCK activities are ignored.
Low: Fiber (NRZ pass-through) mode
High: CMI mode
Controls the timing of SDI and SDO.
When high, adds 20dB of flat gain to the incoming signal before
equalization. Rx Monitor mode is only available in CMI mode.
Inputs mode and address information. Also inputs register data during
a Write operation. Both address and data are input least significant bit
first.
Selects 4 bit parallel transmit modes (input high) or serial transmit
modes (input low)
Outputs register information during a Read operation. Data is output
least significant bit first
Selects E4 operation (input high) or STM1/STS3 operation (input low)
TYPE
G
G
G
S
S
DESCRIPTION
Power Supply
CMOS I/O Driver Supply
Ground
CMOS I/O Driver Ground
Trim Ground
Used during production test. Connect directly to ground.
Do not decouple to supply or PORB.
OC-3/ STM1-E/ E4 LIU
Single Channel
78P2351
Rev. 2.4