LPC47M14X Ver la hoja de datos (PDF) - SMSC -> Microchip
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LPC47M14X Datasheet PDF : 205 Pages
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3 DESCRIPTION OF PIN FUNCTIONS
QFP
PIN #
23:20
24
25
26
27
29
30
6
19
123
124
51
52
54
55
61
62
53,
65,93,1
25
7, 31,
60,76,
101,
102,
128
40
44
18,
113,
122
16
11
10
NAME
TOTAL SYMBOL
BUFFER
TYPE
BUFFER TYPE
PER FUNCTION
(NOTE 1)
PROCESSOR/HOST LPC INTERFACE (10)
Multiplexed Command,
4
LAD[3:0]
Address, Data [3:0]
PCI_IO
PCI_IO
Frame
1
LFRAME#
PCI_I
PCI_I
Encoded DMA Request
1 LDRQ#
PCI_O
PCI_O
PCI Reset
1
PCI_RESET# PCI_I
PCI_I
Power Down
1 LPCPD#
PCI_I
PCI_I
PCI Clock
1
PCI_CLK
PCI_ICLK PCI_ICLK
Serial IRQ
1
SER_IRQ
PCI_IO
PCI_IO
CLOCKS (4)
32.768KHz Trickle Clock 1
CLOCKI32
IS
IS
Input
14.318MHz Clock Input
1 CLOCKI
IS
IS
24MHz Crystal (terminal 1)
1
ICLK
IS
IS
/ 48MHz Clock Input
24MHz Crystal (terminal 2)
1
OCLK
IS
IS
FAN CONTROL (4)
General Purpose I/O
/Fan Tachometer 2
1 GP30/
IO8
FAN_TACH2
(I/O8/OD8)/I
General Purpose I/O
/Fan Tachometer 1
1 GP31/
IO8
FAN_TACH1
(I/O8/OD8)/I
General Purpose I/O
/Fan Speed Control 2
1
GP32/FAN2 IO12
(I/O12/OD12)/
(O12/OD12)
General Purpose I/O
/Fan Speed Control 1
1
GP33/FAN1 IO12
(I/O12/OD12)/
(O12/OD12)
INFRARED INTERFACE (2)
Infrared Rx
1
IRRX2/GP34 IS/O8
IS/(IS/O8/OD8)
/General Purpose I/O
Infrared Tx
1
IRTX2/GP35 IO12
O12/(I/O12/OD12)
/General Purpose I/O
POWER PINS (16)
Power
4
VCC
Ground
7 VSS
Analog Ground
Reference Voltage
Trickle Voltage
Read Disk Data
Write Gate
Write Disk Data
1 AVSS
1
VREF
3 VTR
FDD INTERFACE (14)
1
nRDATA
IS
1
nWGATE
O12
1
nWDATA
O12
IS
(O12/OD12)
(O12/OD12)
NOTES
2
3
11, 14
14
4
4
5, 6
7
SMSC DS – LPC47M14X
Page 10
Rev. 03/19/2001
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