C505-2RM SIEMENS [Siemens Semiconductor Group], C505-2RM Datasheet - Page 70

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

AC Characteristics (16 MHz, 0.4 to 0.6 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 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%, – 15%;
V
SS
= 0 V
t
t
t
t
t
t
t
t
t
t
t
t
Symbol
LHLL
AVLL
LLAX
LLIV
LLPL
PLPH
PLIV
PXIX
PXIZ
PXAV
AVIV
AZPL
*)
*)
T
T
A
A
= 0 to 70 C for the SAB- versions
= 40 to 85 C for the SAF- versions
70
min.
48
10
10
–
10
73
–
0
–
20
–
-5
16-MHz clock
C
Duty Cycle
L
0.4 to 0.6
for all other outputs = 80 pF)
max.
–
–
–
75
–
–
38
–
15
–
95
–
Limit Values
min.
CLP - 15
TCL
TCL
–
TCL
CLP+
TCL
–
0
–
TCL
–
-5
1/CLP= 2 MHz to 16 MHz
Hmin
Hmin
Lmin
Hmin
Lmin
Variable Clock
-15
- 5
-15 –
-15
-15 –
C505A / C505CA
–
2 CLP - 50
–
–
CLP+
TCL
–
TCL
–
2 CLP +
TCL
–
max.
C505 / C505C
Hmin
Lmin
Hmin
1997-12-01
- 50
-10
-55
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns