LPC47N237-MD SMSC [SMSC Corporation], LPC47N237-MD Datasheet - Page 122

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

Chapter 20 Timing Diagrams
Note 20.1
Revision 0.3 (10-26-04)
NAME
For the Timing Diagrams shown, the following capacitive loads are used on outputs.
A l l H o s t
A c c e s s e s
t1
t2
t3
Internal write-protection period after Vcc passes 2.7 volts on power-up
V c c
Vcc Slew from 2.7V to 0V
Vcc Slew from 0V to 2.7V
All Host Accesses After Powerup
DESCRIPTION
t 1
nSTROBE
nCLKRUN
SER_IRQ
Figure 20.1 - POWER-UP TIMING
LAD[3:0]
SLCTIN
nLDRQ
PD[0:7]
NAME
SDAT
SCLK
nALF
TXD
DATASHEET
(Note 4.1)
Page 122
CAPACITANCE
TOTAL (PF)
3.3v I/O Controller for Port Replicators and Docking Stations
240
240
240
240
240
240
50
50
50
50
50
MIN
300
100
125
t 2
TYP
t 3
MAX
500
SMSC DS – LPC47N237
UNITS
µs
µs
µs