C501 Datasheet, PDF (41/48 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

C501
ALE
PSEN
WR
Port 0
Port 2
t _WHLH
t _LLWL
t _WLWH
t _AVLL
t _LLAX2
A0 - A7 from
Ri or DPL
t _AVWL
t_QVWX
t_QVWH
Data OUT
P2.0 - P2.7 or A8 - A15 from DPH
t_WHQX
A0 - A7
from PCL
Instr.IN
A8 - A15 from PCH
MCT00098
Figure 15
Data Memory Write Cycle
V_CC- 0.5V
0.45V
0.7 V_CC
0.2 V_CC- 0.1
t _CLCL
t _CHCL
t _CLCX
t _CLCH
t _CHCX
Figure 16
External Clock Drive at XTAL2
Semiconductor Group
41
MCT00033
1997-04-01