FDC37C669-MS Standard Microsystems (SMSC), FDC37C669-MS Datasheet - Page 139

• Manufacturer Part Number: FDC37C669-MS
• Manufacturer: Standard Microsystems (SMSC)

Specifications of FDC37C669-MS

• Pin Count: 100
• Lead Free Status / RoHS Status: Compliant

t1
t2
t3
t4
t5
t6
t7
t8
t9
P E, SLCT, nACK,
P D0-PD7, nERR,
NOTE: P INTR is the interrupt assigned to the Parallel Port
nIOR/nIOW
A0-A9, AEN, nIOCS16 Set Up to
nIOR Low
nIOR Width
A0-A9, AEN, nIOCS16 Hol d from
nIOR H igh
Da ta Access Time from nIOR Low
D ata to Floa t De lay fro m nIOR High
Parall el Port Setup
Re ad Stro be to Clear FINTR
n IOR or nIOW In active for Transfers to
an d fro m ECP FIFO
n IOR Active to PINTR Inacti ve
nIOCS16
(D0-D7)
FINTR is the i n terrupt assigned to the Floppy Disk
PINTR
FINTR
BUSY
DATA
nIOR
AEN,
A X,
FIGURE 3 - MICROPROCESSOR READ TIMING
Pa ram eter
t 1
t 6
TIMING DIAGRAMS
t 4
139
t 9
DATA VALID
t 2
t 8
m in
150
150
40
10
10
20
40
typ
t 7
t 3
t 5
max
100
260
55
60
units
ns
ns
ns
ns
ns
ns
ns
ns
ns