LAN91C100 Datasheet, PDF (93/101 Pages) SMSC Corporation – FEAST™ Fast Ethernet Controller

FIGURE 21 - SRAM INTERFACE
t34
RA2-RA16
RnWE0-nRWE3
nROE
RD0-RD31
t35
t36
t37
data out
t38
data in
WRITE CYCLE
PARAMETER
t34 RA2-RA16nn Setup to nRWE-0-nRWE3 Falling
t35 RA2-RA16nn Hold After nRWE-0-nRWE3, nROE
Rising
t36 Write - RD0-RD31 Setup to nRWE0-nRWE3 Rising
t37 Write - RD0-RD31 Hold after nRWE0-nRWE3 Rising
t38 Read - RA2-RA16 Valid to RD0-RD31 Valid
MIN
READ CYCLE
TYP MAX
UNITS
0
ns
0
ns
12
ns
0
ns
25
ns
82