LPC47M192-NW Standard Microsystems (SMSC), LPC47M192-NW Datasheet - Page 12

• Manufacturer Part Number: LPC47M192-NW
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LPC47M192-NW

• Lead Free Status / RoHS Status: Compliant

4
SMSC DS – LPC47M192
7, 31, 60,76
QFP PIN#
53, 65,93
23:20
DESCRIPTION OF PIN FUNCTIONS
18
44
40
19
24
25
26
27
29
30
51
52
54
55
16
11
6
VCC
AVSS
CLOCKI
LAD[3:0]
PCI_RESET#
SER_IRQ
GP30/
GP31/
GP32/
GP33/
nWGATE
VTR
VREF
VSS
CLOCKI32
LFRAME#
LDRQ#
LPCPD#
PCI_CLK
FAN_TACH2
FAN_TACH1
FAN2
FAN1
nRDATA
NAME
+3.3 Volt Supply Voltage
+3.3 Volt Standby Supply Voltage
Reference Voltage
Ground
Analog Ground
32.768kHz Trickle Clock Input
14.318MHz Clock Input
Active high LPC I/O used for multiplexed
command, address and data bus.
Active low input indicates start of new cycle
and termination of broken cycle.
Active
DMA/Bus Master request for the LPC
interface.
Active low input used as LPC Interface
Reset.
Active low input Power Down signal indicates
that the LPC47M192 should prepare for
power to be shut-off on the LPC interface.
PCI clock input.
Serial IRQ pin used with the PCI_CLK pin
to transfer LPC47M192 interrupts to the
host.
General Purpose I/O.
configured as an Open-Drain Output.
/Fan Tachometer 2 Input
General Purpose I/O.
configured as an Open-Drain Output.
/Fan Tachometer 1 Input
General Purpose I/O
/Fan Speed Control 2 Output
Both functions can be configured as Open-
Drain Output.
General Purpose I/O
/Fan Speed Control 1 Output
Both functions can be configured as Open-
Drain Output.
Raw serial bit stream from the disk drive, low
active. Each falling edge represents a flux
transition of the encoded data.
Write Gate Output.
current driver allows current to flow through
the write head. It becomes active just prior
to writing to the diskette. Can be configured
as an Open-Drain Output.
PROCESSOR/HOST LPC INTERFACE (10)
low
DATASHEET
FDD INTERFACE (14)
DESCRIPTION
output
FAN CONTROL (4)
POWER PINS (10)
CLOCKS (2)
Page 12
This active low high
used
GPIO can be
GPIO can be
for
encoded
IS
IS
PCI_IO
PCI_I
PCI_O
PCI_I
PCI_I
PCI_ICLK
PCI_IO
IO8
IO8
IO12
IO12
IS
O12
BUFFER
NAME
VTR
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
WELL
PWR
1
2
1
3
4
5
5
5, 6
5, 6
NOTES
Rev. 03/30/05