C509-L_97 Datasheet, PDF (277/290 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

Device Specifications
C509-L
11.4 AC Characteristics
V_CC = 5 V + 10%, – 5%; V_SS = 0 V
T_A = 0 to 70 °C for the SAB-C509
T_A = – 40 to 85 °C for the SAF-C509
(C_L for port 0, ALE and PSEN outputs = 100 pF; C_L for all other outputs = 80 pF)
Program Memory Characteristics
Parameter
ALE pulse width
Address setup to ALE
Address hold after ALE
Address to valid instruction in
ALE to PSEN/RDF
PSEN/RDF pulse width
PSEN/RDF to valid instruction in
Input instruction hold after PSEN/
RDF
Input instruction float after PSEN/
RDF
Address valid after PSEN/RDF
Address to valid instruction in
Address float to PSEN/RDF
Symbol
Limit Values
Unit
16-MHz clock
Duty Cycle
0.45 to 0.55
Variable Clock
1/CLP = 3.5 MHz to
16 MHz
min. max. min.
max.
t_LHLL
48
–
CLP-15
–
ns
t_AVLL
10
–
TCL_Hmin-15 –
ns
t_LLAX
10
–
TCL_Hmin-15 –
ns
t_LLIV
–
75 –
2 CLP-50 ns
t_LLPL
10
–
TCL_Lmin-15 –
ns
t_PLPH
73
–
CLP+
–
ns
TCL_Hmin-15
t_PLIV
–
38 –
CLP+
ns
TCL_Hmin-50
t_PXIX
0
–
0
–
ns
t *)
PXIZ
–
15 –
TCL_Lmin-10 ns
t *)
PXAV
20
–
TCL_Lmin-5 –
ns
t_AVIV
–
95 –
2 CLP+
ns
TCL_Hmin-55
t_AZPL
-5
-5
–
ns
*) _{Interfacing the C509-L to devices with float times up to 20 ns is permissible. This limited bus contention will}
not cause any damage to port 0 drivers.
Semiconductor Group
11-7
1997-10-01