LAN91C111I-NC SMSC, LAN91C111I-NC Datasheet - Page 32

• Manufacturer Part Number: LAN91C111I-NC
• Description: Ethernet ICs Non-PCI 10/100 Ethernet MAC
• Manufacturer: SMSC
• Type: Single Chip MAC and PHYr

Specifications of LAN91C111I-NC

• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Product: Ethernet Controllers
• Number Of Transceivers: 1
• Standard Supported: 802.3, 802.3u
• Data Rate: 10 Mbps, 100 Mbps
• Supply Voltage (max): 5 V
• Supply Voltage (min): 0 V
• Supply Current (max): 140 mA
• Maximum Operating Temperature: + 85 C
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 1.91 (06-01-09)
REFERENCE
Transmit Level Adjust
The transmit output current level is derived from an internal reference voltage and the external resistor
on RBIAS pin. The transmit level can be adjusted with either (1) the external resistor on the RBIAS
pin, or (2) the four transmit level adjust bits in the PHY Ml serial port Configuration 1 register as shown
in
Transmit Rise and Fall Time Adjust
The transmit output rise and fall time can be adjusted with the two transmit rise/fall time adjust bits in
the PHY Ml serial port Configuration 1. The adjustment range is -0.25ns to +0.5ns in 0.25ns steps.
Table
W
Q
R
S
U
V
T
7.2. The adjustment range is approximately -14% to +16% in 2% steps.
TLVL[3:0]
0000
0001
0010
0011
0100
0101
0110
1000
1001
1010
1011
1100
1101
0111
1110
1111
Table 7.2 Transmit Level Adjust
TIME (NS) INTERNAL MAU
DATASHEET
32
100
111
111
111
110
110
90
10/100 Non-PCI Ethernet Single Chip MAC + PHY
GAIN
1.16
1.14
1.12
1.10
1.08
1.06
1.04
1.02
1.00
0.98
0.96
0.94
0.92
0.90
0.88
0.86
VOLTAGE (V)
SMSC LAN91C111 REV C
-0.15
0.15
-1.0
-0.3
-0.7
-0.7
0
Datasheet