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AC Characteristics for SAB 80C515-20 / 80C535-20
±
= 5 V
10 %; V
V
CC
SS
(C
for port 0, ALE and PSEN outputs = 100 pF; C
L
Parameter
Program Memory Characteristics
ALE pulse width
Address setup to ALE
Address hold after ALE
ALE low to valid instr in
ALE to PSEN
PSEN pulse width
PSEN to valid instr in
Input instruction hold
after PSEN
Input instruction float
after PSEN
Address valid after PSEN
Address to valid instr in
Address float to PSEN
)
*
Interfacing the SAB 80C515 / 80C535 microcontrollers to devices with float times up to 45 ns is permissible.
This limited bus contention will not cause any damage to port 0 drivers.
Semiconductor Group
= 0 V T
= 0 °C to + 70 °C
A
Symbol
20 MHz
clock
min.
t
60
LHLL
t
20
AVLL
t
20
LLAX
t
–
LLIV
t
25
LLPL
t
115
PLPH
t
–
PLIV
t
0
PXIX
)
*
–
t
PXIZ
)
*
47
t
PXAV
–
t
AVIV
0
t
AZPL
for all other outputs = 80 pF)
L
Limit values
Variable clock
1/t
= 3.5 MHz to 20 MHz
CLCL
max.
min.
–
2 t
– 40
CLCL
–
t
– 30
CLCL
–
t
– 30
CLCL
100
–
–
t
– 25
CLCL
*
–
3 t
– 35
CLCL
75
–
–
0
40
–
–
– 3
t
CLCL
190
–
–
0
261
Device Specifications
max.
–
–
–
4 t
– 100
CLCL
–
–
3 t
– 75
CLCL
–
– 10
t
CLCL
–
5 t
– 60
CLCL
–
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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