C505-2RM SIEMENS [Siemens Semiconductor Group], C505-2RM Datasheet - Page 68

• Manufacturer Part Number: C505-2RM
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

AC Characteristics (12 MHz, 0.5 Duty Cycle)
V
(
Program Memory Characteristics
Parameter
ALE pulse width
Address setup to ALE
Address hold after ALE
ALE to valid instruction in
ALE to PSEN
PSEN pulse width
PSEN to valid instruction in
Input instruction hold after PSEN
Input instruction float after PSEN
Address valid after PSEN
Address to valid instruction in
Address float to PSEN
*)
Semiconductor Group
C
CC
L
Interfacing the C505 to devices with float times up to 37 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%, – 15%;
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
T
T
A
A
A
A
min.
43
17
17
–
22
95
–
0
–
37
–
0
= 0 to 70 C for the SAB- versions
= – 40 to 85 C for the SAF- versions
= – 40 to 110 C for the SAH- versions
= – 40 to 125 C for the SAK- versions
0.5 Duty Cycle
12 MHz clock
68
C
L
for all other outputs = 80 pF)
max.
–
–
–
80
–
–
60
–
32
–
148
–
Limit Values
1/CLP = 2 MHz to 12 MHz
min.
CLP - 40
CLP/2 - 25
CLP/2 - 25
–
CLP/2 - 20
3/2 CLP
- 30
–
0
–
CLP/2 - 5
–
0
Variable Clock
C505A / C505CA
max.
–
–
–
2 CLP - 87
–
–
3/2 CLP
- 65
–
CLP/2 - 10
–
5/2 CLP
- 60
–
C505 / C505C
1997-12-01
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns