HD6433045 HITACHI [Hitachi Semiconductor], HD6433045 Datasheet - Page 675

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HD6433045

Manufacturer Part Number
HD6433045
Description
Hitachi Single-Chip Microcomputer
Manufacturer
HITACHI [Hitachi Semiconductor]
Datasheet

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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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