FDC37C665GT-MS SMSC, FDC37C665GT-MS Datasheet - Page 7

• Manufacturer Part Number: FDC37C665GT-MS
• Description: IC CTRLR SUPER I/O MULTI 100-QFP
• Manufacturer: SMSC

Specifications of FDC37C665GT-MS

• Controller Type: I/O Controller
• Interface: ISA Host
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 35mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1007

PIN NO.
39
57
16
10
11
9
Parallel Port
Interrupt
Request 1
Reset
nRead Disk Data nRDATA
nWrite
Gate
nWrite
Data
nHead
Select
NAME
DESCRIPTION OF PIN FUNCTIONS
PINTR1
RST
nWGATE
nWDATA
nHDSEL
SYMBOL
FLOPPY DISK INTERFACE
BUFFER
TYPE
OD24
OD48
OD48
OD48
O24
IS
IS
7
This interrupt from the Parallel Port is
enabled/disabled via bit 4 of the Parallel
Port
configuration registers CR1 and CR3 for
more information.
If EPP or ECP Mode is enabled, this output
is pulsed low, then released to allow sharing
of interrupts.
This
FDC37C665GT and must be valid for 500
ns minimum.
registers is described in the appropriate
section. The configuration registers are not
affected
FDC37C666GT, the falling edge of reset
latches the jumper configuration.
jumper select lines must be valid 50 ns prior
to this edge.
Raw serial bit stream from the disk drive,
low active. Each falling edge represents a
flux transition of the encoded data.
This active low high current driver allows
current to flow through the write head. It
becomes active just prior to writing to the
diskette.
This active low high current driver provides
the encoded data to the disk drive. Each
falling edge causes a flux transition on the
media.
This high current output selects the floppy
disk side for reading or writing. A logic "1"
on this pin means side 0 will be accessed,
while a logic "0" means side 1 will be ac-
cessed.
active
Control
by
DESCRIPTION
high
The effect on the internal
this
Register.
signal
reset.
resets
Refer
In
The
the
the
to