w89c926 Winbond Electronics Corp America, w89c926 Datasheet - Page 33

• Manufacturer Part Number: w89c926
• Description: Pcmcia Ethernet Network Twisted Pair Interface Controller
• Manufacturer: Winbond Electronics Corp America

SRAM (upper and lower values are for 70 nS and 15 nS SRAMs, respectively)
Note: This timing is invalid for byte access, e.g, attribute memory reading on SRAM image.
SYMBOL
T10
T11
T12
T13
T14
T15
T16
T1
T2
T3
T4
T5
T6
T7
T8
T9
Read cycle time.
MSA0-15 valid to MSD0-7 read data valid.
MSD0-7 read data hold valid from MSA0-15
change.
MSD0-7 read data hold from MSRD deasserted.
MSA0-15 held valid after MSRD deasserted.
MSA0-15 held valid after MSWR deasserted.
MSD0-7 write data setup before MSWR
asserted.
MSD0-7 write data hold after MSWR deasserted.
Even byte MSWR deasserted to odd byte
Even byte address invalid to odd byte address
valid. (see note)
Command recovery time.
RCS held valid after MSRD deasserted.
RCS asserted to MSWR asserted
MSWR pulse width
RCS asserted to MSWR deasserted.
MSWR asserted. (see note)
RCS held valid after MSWR deasserted.
DESCRIPTION
- 33 -
Publication Release Date: January 1996
W89C926 PENTIC+
MIN.
70
15
60
15
60
15
35
10
10
30
10
5
3
0
0
5
3
5
3
0
0
5
3
5
3
5
5
3
0
0
-
-
MAX.
70
15
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Revision A1
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS