FDC37B727-NS Standard Microsystems (SMSC), FDC37B727-NS Datasheet - Page 7

• Manufacturer Part Number: FDC37B727-NS
• Manufacturer: Standard Microsystems (SMSC)

Specifications of FDC37B727-NS

• Pin Count: 128
• Lead Free Status / RoHS Status: Compliant

DESCRIPTION OF PIN FUNCTIONS
No./QFP
74, 104
62, 93,
44-47,
49-52
23-38
7, 48,
PIN
121
43
64
53
40
39
55
57
59
54
56
58
61
60
63
41
42
22
66
68
18
67
69
65
19
20
21
16
11
10
System Data Bus
16-bit System Address Bus
Address Enable
I/O Channel Ready
ISA Reset Drive
Serial IRQ/IRQ15
PCI Clock/IRQ14/GP50
DMA Request 0
DMA Request 1
DMA Request 2
DMA Acknowledge 0
DMA Acknowledge 1
DMA Acknowledge 2
DMA Request 3
DMA Acknowledge 3
Terminal Count
I/O Read
I/O Write
14.318MHz Clock Input
32.768kHz Crystal Input
32.768kHz Crystal Driver
32.768kHz Clock Out
+5V Supply Voltage
Digital Ground
Analog Ground
Trickle Supply Voltage
Battery Voltage
Power On
Button In
Power Management Event/SCI/IRQ9
Read Disk Data
Write Gate
Write Disk Data
TABLE 1 - DESCRIPTION OF PIN FUNCTIONS
NAME
PROCESSOR/HOST INTERFACE (40)
POWER MANAGEMENT (3)
FDD INTERFACE (16)
POWER PINS (10)
CLOCKS (4)
7
TOTAL
16
1
1
1
1
1
1
8
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
4
1
1
1
1
1
1
SD[0:7]
SA[0:15]
AEN
IOCHRDY
RESET_DRV
SER_IRQ
PCI_CLK
DRQ0
DRQ1
DRQ2
nDACK0
nDACK1
nDACK2
DRQ3
nDACK3
TC
nIOR
nIOW
CLOCKI
XTAL1
XTAL2
CLK32OUT
VCC
VSS
AVSS
VTR
VBAT
nPOWERON
BUTTON_IN
nPME
nRDATA
nWGATE
nWDATA
SYMBOL
BUFFER TYPE
OCLK2
OD12
OD24
IO12
IO12
IO12
ICLK
ICLK
O24
O24
O12
O12
O12
O12
O12
O8
IS
IS
I
I
I
I
I
I
I
I
I
I