Datasheet

Appendix A Electrical Characteristics
MC9S12XE-Family Reference Manual Rev. 1.25
1250 Freescale Semiconductor
Figure A-14. Example 1b: Normal Expanded Mode — Stretched Write Access
Table A-31. Example 1b: Normal Expanded Mode Timing at 50MHz bus (EWAIT enabled)
No. Characteristic Symbol
V
DD5
= 5.0V V
DD5
= 3.3V
Unit
C
2 stretch
cycles
3 stretch
cycles
C
2 stretch
cycles
3 stretch
cycles
Min Max Min Max Min Max Min Max
- Frequency of internal bus f
i
- D.C. 50.0 D.C. 50.0 - D.C. 25.0 D.C. 25.0 MHz
- Internal cycle time t
cyc
-20 ∞ 20 ∞ -20 ∞ 20 ∞ ns
- Frequency of external bus f
o
- D.C. 16.7 D.C. 12.5 - D.C. 8.33 D.C. 6.25 MHz
CSx
ADDRx
RE
DATAx (Write) DATA1
WE
EWAIT
UDS, LDS
5
1
9
10
11
4
ADDR1 ADDR2
12
13