Renesas ZTAT H8S/2357F, Hardware Manual

Page: 774 / 1047

Rev.6.00 Oct.28.2004 page 746 of 1016
REJ09B0138-0600H
ø
BREQO
t
BRQOD
t
BRQOD
Figure 22-81 External Bus Request Output Timing
(4) DMAC Timing
Table 22-29 lists the DMAC timing.
Table 22-29 DMAC Timing
Condition A: V
CC
= 2.7 V to 5.5 V, AV
CC
= 2.7 V to 5.5 V, V
ref
= 2.7 V to AV
CC
,
V
SS
= AV
SS
= 0V, ø = 2 to 10 MHz, T
a
= –20 to +75
°
C (regular specifications),
T
a
= –40 to +85
°
C (wide-range specifications)
Condition B: V
CC
= 5.0 V
±
10%, AV
CC
= 5.0 V
±
10%, V
ref
= 4.5 V to AV
CC
,
V
SS
= AV
SS
= 0 V, ø = 2 to 20 MHz, T
a
= –20 to +75
°
C (regular specifications),
T
a
= –40 to +85
°
C (wide-range specifications)
Condition C: V
CC
= 3.0 to 5.5 V, AV
CC
= 3.0 to 5.5 V, V
ref
= 3.0 V to AV
CC
,
V
SS
= AV
SS
= 0 V, ø = 2 to 13 MHz, T
a
= –20 to +75
°
C (regular specifications),
T
a
= –40 to +85
°
C (wide-range specifications)
Condition A Condition B Condition C
Test
Item Symbol Min Max Min Max Min Max Unit Conditions
DREQ
setup time t
DRQS
40 — 30 — 40 — ns Figure 22-85
DREQ
hold time t
DRQH
10 — 10 — 10 —
TEND
delay time t
TED
— 40 — 20 — 40 Figure 22-84
DACK
delay time 1 t
DACD1
— 40 — 20 — 40 ns Figure 22-82,
DACK
delay time 2 t
DACD2
— 40 — 20 — 40
Figure 22-83