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Section 25 Electrical Characteristics
Rev. 4.00 Sep. 14, 2005 Page 924 of 982
REJ09B0023-0400
Bφ = 50 MHz*
Item Symbol Min. Max. Unit Figure(s)
Write data delay time 1 t
WDD1
— 14 ns 25.13 to 25.21
Write data delay time 2 t
WDD2
— 14 ns 25.27 to 25.30,
25.34 to 25.36
Write data delay time 3 t
WDD3
— 1/2t
cyc
+ 14 ns 25.40
Write enable hold time 1 t
WDH1
1 — ns 25.13 to 25.21
Write enable hold time 2 t
WDH2
1 — ns 25.27 to 25.30,
25.34 to 25.36
Write enable hold time 3 t
WDH3
1/2t
cyc
— ns 25.40
WAIT setup time 1 t
WTS1
1/2t
cyc
+ 8 — ns 25.14, 25.15,
25.17 to 25.22
WAIT setup time 2 t
WTS2
8 — ns 25.16
WAIT hold time 1 t
WTH1
1/2t
cyc
+ 4 — ns 25.14, 25.15,
25.17 to 25.22
WAIT hold time 2 t
WTH2
4 — ns 25.16
RAS delay time 1 t
RASD1
1 12 ns 25.23 to 25.34,
25.36 to 25.39
RAS delay time 2 t
RASD2
1/2t
cyc
1/2t
cyc
+ 12 ns 25.40, 25.41
CAS delay time 1 t
CASD1
1 12 ns 25.23 to 25.39
CAS delay time 2 t
CASD2
1/2t
cyc
1/2t
cyc
+ 12 ns 25.40, 25.41
DQM delay time 1 t
DQMD1
1 12 ns 25.23 to 25.36
DQM delay time 2 t
DQMD2
1/2t
cyc
1/2t
cyc
+ 12 ns 25.40, 25.41
CKE delay time 1 t
CKED1
1 12 ns 25.38
CKE delay time 2 t
CKED2
1/2t
cyc
1/2t
cyc
+ 12 ns 25.41
AH delay time t
AHD
1/2t
cyc
1/2t
cyc
+ 12 ns 25.18
Multiplexed address delay time t
MAD
— 12 ns 25.18
Multiplexed address hold time t
MAH
0 — ns 25.18
DACK, TEND delay time t
DACD
— Refer to
peripheral modules
ns 25.13 to 25.34
FRAME delay time t
FMD
1 12 ns 25.19
Note: * The maximum value (f
max
) of Bφ (external bus clock) depends on the number of wait
cycles and the system configuration of your board.