r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 1300
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r4f2456
Manufacturer Part Number
r4f2456
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R4F2456.pdf
(1376 pages)
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Section 27 Electrical Characteristics
Note:
(4)
Table 27.23 DMAC Timing
Conditions: V
Rev. 1.00 Sep. 19, 2008 Page 1270 of 1342
REJ09B0467-0100
Item
OE delay time 1*
OE delay time 2*
Precharge time 1
Precharge time 2
Self-refresh precharge time 1
Self-refresh precharge time 2
WAIT setup time
WAIT hold time
BREQ setup time
BACK delay time
Bus floating time
BREQO delay time
Item
DREQ setup time
DREQ hold time
TEND delay time
DACK delay time 1
DACK delay time 2
DMAC Timing
*
t
OED1
0 V, φ = 8 MHz to 33 MHz, T
T
and t
a
CC
= −40°C to +85°C (wide-range specifications)
= 3.0 V to 3.6 V, AV
OED2
.correspond to OE-A, and
Symbol
t
t
t
t
t
DRQS
DRQH
TED
DACD1
DACD2
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
OED1
OED1B
OED2
OED2B
PCH1
PCH2
RPS1
RPS2
WTS
WTH
BREQS
BACD
BZD
BRQOD
CC
= 3.0 V to 3.6 V, V
Min.
25
10
a
= −20°C to +75°C (regular specifications),
Min.
1.0 × t
1.5 × t
2.5 × t
3.0 × t
25
1
30
t
OED1B
cyc
cyc
cyc
cyc
−20
−20
−20
−20
and t
Max.
18
18
18
OED2B
Max.
15
19
15
19
15
40
25
.correspond to OE-B.
ref
= 3.0 V to AV
Unit
ns
Test Conditions
Figure 27.32
Figure 27.31
Figures 27.29 and 27.30
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
CC
, V
SS
Test Conditions
Figures 27.8 to
27.23, Figures
27.34 and 27.35
Figures 27.22
and 27.23
Figures 27.10,
27.16, and 27.35
Figure 27.24
Figure 27.25
= AV
SS
=
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