C515A Datasheet, PDF (54/58 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

C515A
t _WHLH
ALE
PSEN
WR
Port 0
Port 2
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
Figure 22
Data Memory Write Cycle
t_WHQX
A0 - A7
from PCL
Instr.IN
A8 - A15 from PCH
MCT00098
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 23
External Clock Drive on XTAL2
MCT00033
Semiconductor Group
54
1997-10-01