SAB80515 Datasheet, PDF (257/270 Pages) Siemens Semiconductor Group – 8-Bit Single-Chip Microcontroller Family

Device Specifications
AC Characteristics for SAB 80C515-16/80C535-16
V_CC = 5 V ± 10 %; V_SS = 0 V (C_L for Port 0, ALE and PSEN outputs = 100 pF;
C_Lfor all outputs = 80 pF) T_A = 0 to 70 °C for SAB 80C515-16/80C535-16
T_A = – 40 to 85 °C for SAB 80C515-16/80C535-16-T40/85
Parameter
Symbol
Limit values
Unit
16 MHz clock
min. max.
Variable clock
1/t_CLCL = 3.5 MHz to 16 MHz
min.
max.
Program Memory Characteristics
ALE pulse width
t _LHLL
85
Address setup to ALE t _AVLL
33
Address hold after ALE t _LLAX
28
ALE to valid instruction t _LLIV
–
in
–
2 t_{C LC L} – 40 ^–
ns
–
t_CLCL – 30
–
ns
–
t_CLCL – 35
–
ns
150 ^–
4 t_CLCL – 100 ns
ALE to PSEN
t _LLPL
38
–
PSEN pulse width
t _PLPH
153
PSEN to valid instruction t _PLIV
–
88
in
t_CLCL – 25
3 t_CLCL – 35
–
–
ns
ns
3 t_CLCL – 100 ns
Input instruction hold
t _PXIX
0
–
0
–
ns
after
PSEN
Input instruction float
after
PSEN
t _PXIZ 1) ^–
43
–
t_CLCL – 20
ns
Address valid after
t _PXAV1⁾ 55
t_CLCL – 8
ns
PSEN
Address to valid
instruction in
t _AVIV
–
198 ^–
5 t_CLCL – 115 ns
Address float to PSEN t _AZPL 0
–
0
–
ns
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
257