MC9S12A256 Motorola, MC9S12A256 Datasheet - Page 125

• Manufacturer Part Number: MC9S12A256
• Description: MC9S12DT256 Device User Guide V03.03
• Manufacturer: Motorola

Conditions are shown in Table A-4 unless otherwise noted, C
Num C
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
1
2
3
4
5
6
7
8
9
D Pulse width, E low
D Pulse width, E high
D Address delay time
D Address valid time to E rise (PW
D Muxed address hold time
D Address hold to data valid
D Data hold to address
D Read data setup time
D Read data hold time
D Write data delay time
D Write data hold time
D Write data setup time
D Address access time
D E high access time
D Non-multiplexed address delay time
D Non-muxed address valid to E rise (PW
D Non-multiplexed address hold time
D Chip select delay time
D Chip select access time
D Chip select hold time
D Chip select negated time
D Read/write delay time
D Read/write valid time to E rise (PW
D Read/write hold time
D Low strobe delay time
D Low strobe valid time to E rise (PW
D Low strobe hold time
D NOACC strobe delay time
D NOACC valid time to E rise (PW
P Frequency of operation (E-clock)
P Cycle time
Table A-21 Expanded Bus Timing Characteristics
1
1
(PW
1
1
(t
Rating
(PW
cyc
1
EH
(t
–t
cyc
EH
–t
AD
DSR
–t
–t
–t
CSD
DDW
EL
EL
DSR
)
–t
–t
EL
EL
–t
)
NOD
AD
)
DSR
–t
–t
)
RWD
LSD
EL
)
)
–t
)
)
NAD
)
LOAD
Symbol
= 50pF
PW
PW
t
t
t
t
t
t
t
t
t
t
t
t
t
AHDS
t
t
ACCA
ACCE
t
t
t
ACCS
t
t
t
t
t
t
t
DHW
MAH
DDW
DSW
RWD
RWV
RWH
NOD
t
t
DHA
DSR
DHR
NAD
NAH
CSD
CSH
CSN
NOV
t
NAV
LSD
LSH
LSV
cyc
AD
AV
f
o
EH
EL
MC9S12DT256 Device User Guide — V03.03
Min
40
19
19
11
13
12
19
15
11
14
14
14
0
2
7
2
0
2
6
2
2
8
2
2
Typ
Max
25.0
16
8
7
6
7
7
7
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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