MC9S12E128CFUE Datasheet, PDF (597/606 Pages) Freescale Semiconductor, Inc – MC9S12E128 Data Sheet

Appendix A Electrical Characteristics
Table A-26. Expanded Bus Timing Characteristics (5V Range)
Conditions are 4.75V < VDDX < 5.25V, Junction Temperature -40˚C to +140˚C, C_LOAD = 50pF
Num C
Rating
Symbol
Min
Typ
1
P Frequency of operation (E-clock)
f_o
0
—
2
P Cycle time
t_cyc
40
—
3
D Pulse width, E low
4
D Pulse width, E high¹
PW_EL
19
—
PW_EH
19
—
5
D Address delay time
t_AD
—
—
6
D Address valid time to E rise (PW_EL–t_AD)
7
D Muxed address hold time
t_AV
11
—
t_MAH
2
—
8
D Address hold to data valid
9
D Data hold to address
10
D Read data setup time
t_AHDS
7
—
t_DHA
2
—
t_DSR
13
—
11
D Read data hold time
12
D Write data delay time
13
D Write data hold time
14
D Write data setup time¹ (PW_EH–t_DDW)
15
D Address access time¹ (t_cyc–t_AD–t_DSR)
16
D E high access time¹ (PW_EH–t_DSR)
t_DHR
0
—
t_DDW
—
—
t_DHW
2
—
t_DSW
12
—
t_ACCA
19
—
t_ACCE
6
—
17
D Non-multiplexed address delay time
t_NAD
—
—
18
D Non-muxed address valid to E rise (PW_EL–t_NAD)
t_NAV
14
—
19
D Non-multiplexed address hold time
20
D Chip select delay time
21
D Chip select access time¹ (t_cyc–t_CSD–t_DSR)
t_NAH
2
—
t_CSD
—
—
t_ACCS
11
—
22
D Chip select hold time
23
D Chip select negated time
24
D Read/write delay time
t_CSH
2
—
t_CSN
8
—
t_RWD
—
—
25
D Read/write valid time to E rise (PW_EL–t_RWD)
26
D Read/write hold time
t_RWV
14
—
t_RWH
2
—
27
D Low strobe delay time
t_LSD
—
—
28
D Low strobe valid time to E rise (PW_EL–t_LSD)
29
D Low strobe hold time
t_LSV
14
—
t_LSH
2
—
30
D NOACC strobe delay time
t_NOD
—
—
31
D NOACC valid time to E rise (PW_EL–t_NOD)
32
D NOACC hold time
t_NOV
14
—
t_NOH
2
—
33
D IPIPO[1:0] delay time
t_P0D
2
—
34
D IPIPO[1:0] valid time to E rise (PW_EL–t_P0D)
35
D IPIPO[1:0] delay time¹ (PW_EH-t_P1V)
t_P0V
11
—
t_P1D
2
—
36
D IPIPO[1:0] valid time to E fall
t_P1V
11
—
1 _{Affected by clock stretch: add N x tcyc where N=0,1,2 or 3, depending on the number of clock stretches.}
Max
25.0
—
—
—
8
—
—
—
—
—
—
7
—
—
—
—
6
—
—
16
—
—
—
7
—
—
7
—
—
7
—
—
7
—
25
—
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
ns
ns
ns
ns
ns
MC9S12E128 Data Sheet, Rev. 1.07
Freescale Semiconductor
597