FDC37B727-NS Standard Microsystems (SMSC), FDC37B727-NS Datasheet - Page 8

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

Specifications of FDC37B727-NS

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

No./QFP
PIN
112
113
115
116
117
114
119
118
123
12
17
15
14
13
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
8
9
5
6
3
4
1
2
Head Select
Step Direction
Step Pulse
Disk Change
Drive Select 0
Drive Select 1/GP17
Motor On 0
Motor On 1/GP16
Write Protected
Track 0
Index Pulse Input
Drive Density Select 0
Drive Density Select 1/GP52/IRQ8/nSMI
General Purpose 10/nSMI
General Purpose 11/nRING/EETI (Note 4)
General Purpose 12/WDT/P17/P12/EETI
(Note 4)
General Purpose 13/LED Driver
General Purpose 14/Infrared Rx
General Purpose 15/Infrared Tx (Note 3)
ROM Bus 0/IRQ1/GP60/nSMI
ROM Bus 1/IRQ3/GP61/LED
ROM Bus 2/IRQ4/GP62/nRING
ROM Bus 3/IRQ5/GP63/WDT
ROM Bus 4/IRQ6/GP64/P17/P12
ROM Bus 5/IRQ7/GP65
ROM Bus 6/IRQ8/GP66
ROM Bus 7/IRQ10/GP67
nROMCS/IRQ11/GP53/EETI (Note 4)
nROMOE/IRQ12/GP54/EETI (Note 4)
Receive Serial Data 1
Transmit Serial Data 1
Request to Send 1
Clear to Send 1
Data Terminal Ready 1
Data Set Ready 1
Data Carrier Detect 1
Ring Indicator 1
Receive Serial Data 2/Infrared Rx
NAME
SERIAL PORT 1 INTERFACE (8)
SERIAL PORT 2 INTERFACE (8)
GENERAL PURPOSE I/O (6)
BIOS INTERFACE (10)
8
TOTAL
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
nHDSEL
nDIR
nSTEP
nDSKCHG
nDS0
nDS1
nMTR0
nMTR1
nWRTPRT
nTRKO
nINDEX
DRVDEN0
DRVDEN1
GP10
GP11
GP12
GP13
GP14
GP15
RD0
RD1
RD2
RD3
RD4
RD5
RD6
RD7
nROMCS
nROMOE
RXD1
TXD1
nRTS1/
SYSOP
nCTS1
nDTR1
nDSR1
nDCD1
nRI1
RXD2/IRRX
SYMBOL
BUFFER TYPE
IO24
IO24
IO24
IO12
IO24
IO24
IO12
IO24
IO12
IO12
IO12
IO12
IO12
IO12
IO12
IO12
O24
O24
O24
O24
O24
O24
IO4
IO4
IO4
IO4
O4
O4
IS
IS
IS
IS
I
I
I
I
I
I