MC9S12KG128 Datasheet, PDF (592/600 Pages) Freescale Semiconductor, Inc – Microcontrollers

Appendix A Electrical Characteristics
Table A-24. Expanded Bus Timing Characteristics
Conditions are shown in Table A-4 unless otherwise noted, 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
17
—
PW_EH
17
—
5 D Address delay time
t_AD
—
—
6 D Address valid time to E rise (PW_EL–t_AD)
t_AV
11
—
7 D Muxed address hold time
t_MAH
2
—
8 D Address hold to data valid
t_AHDS
7
—
9 D Data hold to address
t_DHA
2
—
10 D Read data setup time
t_DSR
13
—
11 D Read data hold time
t_DHR
0
—
12 D Write data delay time
t_DDW
—
—
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_DHW
2
—
t_DSW
10
—
t_ACCA
19
—
t_ACCE
4
—
17 D Non-multiplexed address delay time
t_NAD
—
—
18 D Non-muxed address valid to E rise (PW_EL–t_NAD)
t_NAV
10
—
19 D Non-multiplexed address hold time
t_NAH
2
—
20 D Chip select delay time
21 D Chip select access time¹ (t_cyc–t_CSD–t_DSR)
t_CSD
—
—
t_ACCS
11
—
22 D Chip select hold time
t_CSH
2
—
23 D Chip select negated time
t_CSN
8
—
24 D Read/write delay time
t_RWD
—
—
25 D Read/write valid time to E rise (PW_EL–t_RWD)
t_RWV
10
—
26 D Read/write hold time
t_RWH
2
—
27 D Low strobe delay time
t_LSD
—
—
28 D Low strobe valid time to E rise (PW_EL–t_LSD)
t_LSV
10
—
29 D Low strobe hold time
t_LSH
2
—
30 D NOACC strobe delay time
t_NOD
—
—
31 D NOACC valid time to E rise (PW_EL–t_LSD)
t_NOV
10
—
32 D NOACC hold time
t_NOH
2
—
33 D PIPO0 delay time
t_P0D
2
—
34 D PIPO0 valid time to E rise (PW_EL–t_P0D)
35 D PIPO1 delay time¹ (PW_EH-t_P1V)
t_P0V
10
—
t_P1D
2
—
36 D PIPO1 valid time to E fall
t_P1V
10
—
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
—
—
—
—
7
—
—
16
—
—
—
7
—
—
7
—
—
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
ns
ns
ns
ns
ns
MC9S12KG128 Data Sheet, Rev. 1.15
592
Freescale Semiconductor