C509-L_97 SIEMENS [Siemens Semiconductor Group], C509-L_97 Datasheet - Page 277

• Manufacturer Part Number: C509-L_97
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

11.4 AC Characteristics
V
(
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
*)
Semiconductor Group
C
CC
L
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.
for port 0, ALE and PSEN outputs = 100 pF;
= 5 V + 10%, – 5%;
V
SS
= 0 V
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
LHLL
AVLL
LLAX
LLIV
LLPL
PLPH
PLIV
PXIX
PXIZ
PXAV
AVIV
AZPL
T
T
A
A
*)
*)
= 0 to 70 C
= – 40 to 85 C for the SAF-C509
11-7
C
min.
48
10
10
–
10
73
–
0
–
20
–
- 5
16-MHz clock
L
0.45 to 0.55
Duty Cycle
for all other outputs = 80 pF)
max.
–
–
–
75
–
–
38
–
15
–
95
for the SAB-C509
Limit Values
min.
CLP-15
TCL
TCL
–
TCL
CLP+
TCL
–
0
–
TCL
–
- 5
1/CLP = 3.5 MHz to
Device Specifications
Hmin
Hmin
Lmin
Hmin
Lmin
Variable Clock
-15
-5
-15 –
-15 –
-15
16 MHz
max.
–
2 CLP-50
–
–
CLP+
TCL
–
TCL
–
2 CLP+
TCL
–
Hmin
Lmin
Hmin
1997-10-01
-10
-50
-55
C509-L
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns