w89c926 Winbond Electronics Corp America, w89c926 Datasheet - Page 34

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

Flash Memory
Memory Support Bus Access (Flash Access)
SYMBOL
T12a
T12b
T12c
T4a
T4b
T10
T11
T1
T2
T3
T5
T6
T7
T8
T9
MSWR
(Read)
(Write)
MSAn
MSRD
MSDn
MSDn
FCS
MSA0-16 valid to FCS asserted.
MSA0-16 held valid after MSRD , MSWR deasserted.
Read data hold from MSRD deasserted.
Write data setup to MSWR deasserted.
Write data hold from MSWR deasserted.
Access cycle time
Write pulse width
Write recovery time before read
Read recovery time before write
Consecutive same commands interval
FCS asserted to MSRD , MSWR asserted.
FCS held valid after MSRD deasserted.
FCS held valid after MSWR deasserted.
MSRD asserted to read data valid.
FCS asserted to MSWR deasserted
T1
T2
DESCRIPTION
T5
T11
- 34 -
T10
T9
T7
Valid
Valid
W89C926 PENTIC+
T6
T4
T3
T8
MIN.
150
20
55
15
55
75
20
0
5
0
5
0
6
0
-
T12
MAX.
60
-
-
-
-
-
-
-
-
-
-
-
-
-
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
S
S