Datasheet

Section 26 Electrical Characteristics
R01UH0309EJ0500 Rev. 5.00 Page 1299 of 1408
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
Notes: 1. t
OED1
, and t
OED2
correspond to the OE-A and RD, and, t
OED1B
, and t
OED2B
correspond to the
OE-B.
2. Supported only by the H8S/2456R Group.
3. t
CKED
corresponds to the CKE-A, t
CKEDB
corresponds to the CKE-B.
(4) DMAC and EXDMAC Timing
Table 26.9 DMAC and EXDMAC Timing
Conditions: V
CC
= 3.0 V to 3.6 V, AV
CC
= 3.0 V to 3.6 V, V
ref
= 3.0 V to AV
CC
, V
SS
= AV
SS
= 0 V,
φ = 8 MHz to 33 MHz
Item Symbol Min. Max. Unit Test Conditions
DREQ setup time t
DRQS
25 ⎯ ns Figure 26.34
DREQ hold time t
DRQH
10 ⎯
TEND delay time t
TED
⎯ 18 ns Figure 26.33
DACK delay time 1 t
DACD1
⎯ 18 Figures 26.31 and 26.32
DACK delay time 2 t
DACD2
⎯ 18
EDREQ setup time t
EDRQS
25 ⎯ ns Figure 26.34
EDREQ hold time t
EDRQH
10 ⎯
ETEND delay time t
ETED
⎯ 18 ns Figure 26.33
EDACK delay time 1 t
EDACD1
⎯ 18 ns Figures 26.31 and 26.32
EDACK delay time 2 t
EDACD2
⎯ 18
EDRAK delay time t
EDRKD
⎯ 18 ns Figure 26.35