HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 675
HD6433044
Manufacturer Part Number
HD6433044
Description
(HD64 Series) Hitachi Single-Chip Microcomputer
Manufacturer
Hitachi Semiconductor
Datasheet
1.HD6433044.pdf
(867 pages)
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Table 21-5 Refresh Controller Bus Timing
Condition A: V
Condition B: V
Condition C: V
Item
RAS delay time 1
RAS delay time 2
RAS delay time 3
Row address hold time* t
RAS precharge time*
CAS to RAS precharge t
time*
CAS pulse width
RAS access time*
Address access time
CAS access time*
Write data setup time 3 t
CAS setup time*
Read strobe delay time t
Note is on next page.
V
specifications), T
V
specifications), T
V
specifications), T
CC
SS
CC
SS
CC
SS
= AV
= AV
= AV
= 2.7 V to 5.5 V, AV
= 3.15 V to 5.5 V, AV
= 5.0 V ± 10%, AV
Symbol Min
t
t
t
t
t
t
t
t
t
RAD1
RAD2
RAD3
RAH
RP
CRP
CAS
RAC
AA
CAC
WDS3
CSR
RSD
SS
SS
SS
= 0 V, ø = 1 MHz to 8 MHz, T
= 0 V, ø = 1 MHz to 13 MHz, T
= 0 V, ø = 1 MHz to 18 MHz, T
—
—
—
25
85
85
100
—
—
—
50
20
—
Condition A Condition B
a
a
a
= –40°C to +85°C (wide-range specifications)
= –40°C to +85°C (wide-range specifications)
= –40°C to +85°C (wide-range specifications)
8 MHz
Max
60
60
60
—
—
—
—
160
105
50
—
—
60
CC
CC
CC
= 5.0 V ± 10%, V
Min
—
—
—
20
55
55
55
—
—
—
20
10
—
= 2.7 V to 5.5 V, V
= 3.15 V to 5.5 V, V
13 MHz
667
Max
50
50
50
—
—
—
—
80
45
30
—
—
50
Min
—
—
—
15
45
45
40
—
—
—
15
15
—
a
16 MHz
a
a
= –20°C to +75°C (regular
REF
= –20°C to +75°C (regular
= –20°C to +75°C (regular
Max
30
30
30
—
—
—
—
85
55
30
—
—
30
Condition C
REF
= 4.5 V to AV
REF
= 2.7 V to AV
Min
—
—
—
15
40
40
35
—
—
—
10
10
—
= 3.15 V to AV
18 MHz
Max
30
30
30
—
—
—
—
70
45
25
—
—
30
CC
Unit
ns
CC
,
,
CC
Test
Conditions
Figure 21-10
to
Figure 21-16
,
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