FDC37C669-MT SMSC, FDC37C669-MT Datasheet - Page 8

• 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
QFP/
4,3
2,5
17
14
13
12
18
88
89
78
79
8
1
nStep Pulse
Disk Change
nDrive Select O,1 nDS0,1
nMotor On 0,1
DRVDEN0
nWrite
Protected
wTrack 00
nIndex
DRVDEN1
Receive Data 2
Transmit Data 2
Receive Data 1
Transmit Data 1
NAME
nSTEP
nDSKCHG
nMTR0,1
DRVDEN0
nWRTPRT
nTRK00
nINDEX
DRVDEN 1
RXD2/IRRX
TXD2/IRTX
RXD1
TXD1
DESCRIPTION OF PIN FUNCTIONS
SYMBOL
SERIAL PORT INTERFACE
BUFFER
TYPE
OD48
OD48
OD48
OD48
OD48
O24
024
IS
IS
IS
IS
I
I
8
This active low high current driver issues a low
pulse for each track-to-track movement of the
head.
This input senses that the drive door is open
or that the diskette has possibly been changed
since the last drive selection. This input is
inverted and read via bit 7 of I/O address
3F7H.
Active low open drain outputs select drives 0-
1.
These active low open drain outputs select
motor drives 0-1.
Indicates the drive and media selected. Refer
to configuration registers CR03, CR0B, CR1F.
This active low Schmitt Trigger input senses
from the disk drive that a disk is write
protected. Any write command is ignored.
This active low Schmitt Trigger input senses
from the disk drive that the head is positioned
over the outermost track.
This active low Schmitt Trigger input senses
from the disk drive that the head is positioned
over the beginning of a track, as marked by an
index hole.
Indicates the drive and media selected. Refer
to configuration registers CR03, CR0B, CR1F.
Receiver serial data input for port 2. IR
Receive Data
Transmit serial data output for port 2. IR
transmit data.
Reciever serial data input for port 1.
Transmit serial data output for port 1.
DESCRIPTION