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参数资料
型号： SC515847MPV
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： 微控制器/微处理器
英文描述： 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
封装： LQFP-112
文件页数： 41/142页
文件大小： 6464K
代理商： SC515847MPV
Device User Guide — 9S12DT128DGV2/D V02.15
135
Freescale Semiconductor
Table A-20 Expanded Bus Timing Characteristics
Conditions are shown in (Table A-4) unless otherwise noted, CLOAD = 50pF
Num C
Rating
Symbol
Min
Typ
Max
Unit
1
P Frequency of operation (E-clock)
fo
0
25.0
MHz
2
P Cycle time
tcyc
40
ns
3
D Pulse width, E low
PWEL
19
ns
4
D Pulse width, E high1
PWEH
19
ns
5
D Address delay time
tAD
8
ns
6
D Address valid time to E rise (PWEL–tAD)
tAV
11
ns
7
D Muxed address hold time
tMAH
2
ns
8
D Address hold to data valid
tAHDS
7
ns
9
D Data hold to address
tDHA
2
ns
10
D Read data setup time
tDSR
13
ns
11
D Read data hold time
tDHR
0
ns
12
D Write data delay time
tDDW
7
ns
13
D Write data hold time
tDHW
2
ns
14
D Write data setup time(1) (PWEH–tDDW)
tDSW
12
ns
15
D Address access time(1) (tcyc–tAD–tDSR)
tACCA
19
ns
16
D E high access time(1) (PWEH–tDSR)
tACCE
6
ns
17
D Non-multiplexed address delay time
tNAD
6
ns
18
D Non-muxed address valid to E rise (PWEL–tNAD)
tNAV
15
ns
19
D Non-multiplexed address hold time
tNAH
2
ns
20
D Chip select delay time
tCSD
16
ns
21
D Chip select access time(1) (tcyc–tCSD–tDSR)
tACCS
11
ns
22
D Chip select hold time
tCSH
2
ns
23
D Chip select negated time
tCSN
8
ns
24
D Read/write delay time
tRWD
7
ns
25
D Read/write valid time to E rise (PWEL–tRWD)
tRWV
14
ns
26
D Read/write hold time
tRWH
2
ns
27
D Low strobe delay time
tLSD
7
ns
28
D Low strobe valid time to E rise (PWEL–tLSD)
tLSV
14
ns
29
D Low strobe hold time
tLSH
2
ns
30
D NOACC strobe delay time
tNOD
7
ns
31
D NOACC valid time to E rise (PWEL–tNOD)
tNOV
14
ns
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