FDC37C669-MT SMSC, FDC37C669-MT Datasheet - Page 14

• Manufacturer Part Number: FDC37C669-MT
• Description: IC CTRLR SUPER I/O FLPPY 100TQFP
• Manufacturer: SMSC

Specifications of FDC37C669-MT

• Controller Type: I/O Controller
• Interface: ISA Host
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 25mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 638-1008

PIN NO.
TQFP
15,72
QFP/
94
23
58
98
Drive 2
Interrupt Request
B
I/O Power
Power
Address X
NAME
DRV2
nADRX
IRQ_B
IRQIN
PWRGD
nGAMECS
NC
V
DESCRIPTION OF PIN FUNCTIONS
CC
SYMBOL
BUFFER
(OD24)
TYPE
OD24
024
O4
I
I
I
14
In PS/2 mode, this input indicates whether a
second drive is connected; DRV2 should be
low if a second drive is connected. This status
is reflected in a read of Status Register A.
Active low address decode out: used to
decode a 1, 8, or 16 byte address block. (An
external
Configuration registers CR03, CR08 and
CR09 for more information. This pin has a
30ua internal pull-up. The interrupt request
from a logical device or IRQIN may be output
on IRQ_B. Refer to the configuration registers
for more information.
(If EPP or ECP Mode is enabled, this output is
pulsed low, then released to allow sharing of
interrupts.)
This pin is used to steer an interrupt signal
from an external device onto one of eight IRQ
outputs IRQA-H.
This active high input indicates that the power
(V
must be active. When PWRGD is inactive, all
inputs to Mercury are disconnected and put
into a low power mode; all outputs are put into
high impedance. The contents of all registers
are preserved as long as V
value. The driver current drain in this mode
drops to ISTBY - standby current. This input
has an internal 30ua pull-up.
This is the Game Port Chip Select output -
active low.
address, qualified by AEN, matches that
selected in Configuration register CR1E.
No Connect
Positive Supply Voltage.
CC
) is valid. For device operation, PWRGD
pull-up
It will go active when the I/O
DESCRIPTION
is
required).
CC
has a valid
Refer
to