FDC37B787-NS Standard Microsystems (SMSC), FDC37B787-NS Datasheet - Page 9

• Manufacturer Part Number: FDC37B787-NS
• Manufacturer: Standard Microsystems (SMSC)

Specifications of FDC37B787-NS

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

No./QFP
74, 104
7, 48,
PIN
67
69
65
19
20
21
16
11
10
12
17
15
14
13
77
78
8
9
5
6
3
4
1
2
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
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
NAME
GENERAL PURPOSE I/O (6)
POWER MANAGEMENT (3)
FDD INTERFACE (16)
8
TOTAL
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
VSS
AVSS
VTR
VBAT
nPOWERON
BUTTON_IN
nPME
nRDATA
nWGATE
nWDATA
nHDSEL
nDIR
nSTEP
nDSKCHG
nDS0
nDS1
nMTR0
nMTR1
nWRTPRT
nTRKO
nINDEX
DRVDEN0
DRVDEN1
GP10
GP11
SYMBOL
BUFFER TYPE
OD24
IO24
IO24
IO24
IO12
O12
O24
O24
O24
O24
O24
O24
O24
O24
IO4
IS
IS
IS
IS
IS
I