SAB 80C515/80C535
AC Characteristics for SAB 80C515-16/80C535-16
= 5 V ± 10 %; V = 0 V (CL for Port 0, ALE and PSEN outputs = 100 pF;
V
CC
SS
CLfor all outputs = 80 pF)
T = 0 to 70 ˚C for SAB 80C515-16/80C535-16
A
T = – 40 to 85 ˚C for SAB 80C515-16/80C535-16-T40/85
A
Parameter
Symbol
Limit values
Unit
16 MHz clock
Variable clock
= 3.5 MHz to 16 MHz
1/t
CLCL
min.
max.
min.
max.
Program Memory Characteristics
–
–
ALE pulse width
t
t
t
t
85
2 t
– 40
C LC L
ns
ns
ns
LHLL
AVLL
LLAX
LLIV
–
–
Address setup to ALE
Address hold after ALE
33
28
–
t
t
– 30
CLCL
CLCL
–
–
– 35
–
ALE to valid instruction
in
150
4 t
– 100 ns
CLCL
CLCL
–
–
ALE to PSEN
t
t
38
153
–
t
– 25
ns
ns
LLPL
PLPH
PLIV
CLCL
PSEN pulse width
3 t
– 35
CLCL
–
PSEN to valid instruction t
88
3 t
– 100 ns
in
–
–
Input instruction hold
after
PSEN
t
t
0
0
ns
PXIX
–
–
Input instruction float
1)
43
t
– 20
CLCL
ns
PXIZ
after
PSEN
)
1
Address valid after
PSEN
t
t
t
55
t
– 8
ns
– 115 ns
ns
PXAV
AVIV
AZPL
CLCL
–
–
Address to valid
instruction in
198
5 t
CLCL
–
–
Address float to PSEN
0
0
1)
Interfacing the SAB 80C515-16 to devices with float times up to 55 ns is permissible.
This limited bus contention will not cause any damage to port 0 drivers.
Semiconductor Group
44
INFINEON [ Infineon ]
