MC9S12XEP100 Datasheet, PDF (960/1036 Pages) Freescale Semiconductor, Inc – Microcontrollers

Appendix A Electrical Characteristics
Table A-29. Example 1a: Normal Expanded Mode Timing 50 MHz bus (EWAIT disabled)
No.
Characteristic
Symbol
- Frequency of internal bus
- Internal cycle time
- Frequency of external bus
1 External cycle time (selected by EXSTR)
2 Address ¹ valid to RE fall
3 Pulse width, RE
4 Address valid to WE fall
5 Pulse width, WE
6 Read data setup time (if ITHRS = 0)
Read data setup time (if ITHRS = 1)
7 Read data hold time
8 Read enable access time
9 Write data valid to WE fall
10 Write data setup time
11 Write data hold time
f_i
t_cyc
f_o
t_cyce
t_ADRE
PW_RE
t_ADWE
PW_WE
t_DSR
t_DSR
t_DHR
t_ACCR
t_WDWE
t_DSW
t_DHW
1 ^{Includes the following signals: ADDRx, UDS, LDS, and CSx.}
V_DD5=5.0V
C Min Max
- D.C. 50.0
- 20 ∞
- D.C. 25.0
- 40 ∞
D4
-
D 28
-
D4
-
D 18
-
D 19
-
D 23
-
D0
-
D4
-
D5
-
D 23
-
D6
-
V_DD5=3.3V
C Min Max
- D.C. 50.0
- 20 ∞
- D.C. 25.0
- 40 ∞
C tbd
-
C tbd
-
C tbd
-
C tbd
-
C tbd
-
C
N/A
C tbd
-
C tbd
-
C tbd
-
C tbd
-
C tbd
-
Unit
MHz
ns
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MC9S12XE-Family Reference Manual , Rev. 1.07
960
Freescale Semiconductor