Rainbow Electronics W90N740 User Manual
Page 202
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W90N740
- 198 -
8.3.3 EBI/(ROM/SRAM/External I/O) AC Characteristics
Address Valid
R Data
Write Data Vaild
MCLK
T
DO
nECS[3:0]
A[24:0]
nOE
D[31:0]
nWAIT
nWBE[3:0]
D[31:0]
T
NECSO
T
NECSO
T
ADDO
T
NOEO
T
NOEO
T
DSU
T
DH
T
NWAH
T
NWBO
T
NWBO
T
NWASU
SYMBOL DESCRIPTION MIN.
MAX.
UNIT
T
ADDO
Address Output Delay Time
2
7
nS
T
NCSO
ROM/SRAM/Flash or External I/O Chip Select Delay Time
2
7
nS
T
NOEO
ROM/SRAM or External I/O Bank Output Enable Delay
2
7
nS
T
NWBO
ROM/SRAM or External I/O Bank Write Byte Enable Delay
2
7
nS
T
DH
Read Data Hold Time
7
nS
T
DSU
Read Data Setup Time
0
nS
T
DO
Write Data Output Delay Time (SRAM or External I/O)
2
7
nS
T
NWASU
External Wait Setup Time
3
nS
T
NWAH
External Wait Hold Time
1
nS
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