LPC47N237-MD SMSC [SMSC Corporation], LPC47N237-MD Datasheet - Page 119

• Manufacturer Part Number: LPC47N237-MD
• Description: 3.3V I/O CONTROLLER FOR PORT REPLICATORS AND DOCKING STATIONS
• Manufacturer: SMSC [SMSC Corporation]

3.3v I/O Controller for Port Replicators and Docking Stations
SMSC DS – LPC47N237
ICLK and OCLK Type Buffer
Load Capacitance
Equivalent Series Resistance
O8 Type Buffer
Low Output Level
High Output Level
OD8 Type Buffer
Low Output Level
High Output Level
O12 Type Buffer
Low Output Level
High Output Level
OD12 Type Buffer
Low Output Level
High Output Level
OD14 Type Buffer
Low Output Level
High Output Level
OP14 Type Buffer
Low Output Level
High Output Level
PARAMETER
SYMBOL
ESR
V
V
V
V
V
V
V
V
V
V
V
V
CL
OH
OH
OH
OH
OH
OH
OL
OL
OL
OL
OL
OL
DATASHEET
MIN
2.4
2.4
2.4
Page 119
TYP
TBD
Vcc+10%
Vcc+10%
Vcc+10%
MAX
TBD
0.4
0.4
0.4
0.4
0.4
0.4
UNITS
pF
Ω
V
V
V
V
V
V
V
V
V
V
V
V
Use a 24 MHz parallel
resonant crystal oscillator.
The load capacitors are
seen by the crystal as two
capacitors in series and is
approximately
CL = X / Y
X = CL1 * CL2
Y = CL1 + CL2. For
example, a 12.5pF crystal
should use two 25pF
capacitors for proper
loading.
I
I
I
Open Drain;
Vcc=3.3V (5V Max)
I
I
I
Open Drain;
Vcc=3.3V (5V Max)
I
Open Drain; Vcc=3.3V
I
I
OL
OH
OL
OL
OH
OL
OL
OL
OH
= 8mA
= 8mA
= 12mA
= 12mA
= 14mA
= 14mA
= -4mA
= -6mA
= -14mA
COMMENTS
Revision 0.3 (10-26-04)