SAB80515 Datasheet, PDF (253/270 Pages) Siemens Semiconductor Group – 8-Bit Single-Chip Microcontroller Family

Device Specifications
AC Characteristics
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 80C515/80C535
T_A = – 40 to 85 °C for SAB 80C515/80C535-T40/85
Parameter
Symbol
Limit values
Unit
12 MHz clock
min. max.
Variable clock
1/t_CLCL = 3.5 MHz to 12 MHz
min.
max.
Program Memory Characteristics
ALE pulse width
Address setup to ALE
Address hold after ALE
ALE to valid instruction
in
t _LHLL
t _AVLL
t _LLAX
t _LLIV
127 –
2 t_{C LCL} – 40 –
ns
53
–
t_{C LCL} – 30
–
ns
48
–
t_{C LCL} – 35
–
ns
–
233 –
4 t_{C LCL} – 100 ns
ALE to PSEN
t _LLPL
PSEN pulse width
t _PLPH
PSEN to valid instruction t_PLIV
in
58
–
t_{C LCL} – 25
–
ns
215
3 t_{C LCL} – 35
ns
–
150 –
3 t_{C LCL} – 100 ns
Input instruction hold
t _PXIX
0
–
0
–
ns
after PSEN
Input instruction float
after PSEN
t _PXIZ ¹⁾
–
63
–
t_{C LCL} – 20
ns
Address valid after
t _PXAV 1⁾ 75
t_{C LCL} – 8
ns
PSEN
Address to valid instruc- t_{A VIV}
–
tion in
302 –
5 t_{C LCL} – 115 ns
Address float to PSEN t_{A ZPL}
0
–
0
–
ns
1) _{Interfacing the SAB 80C515 to devices with float times up to 75 ns is permissible.}
This limited bus contention will not cause any damage to port 0 drivers.
Semiconductor Group
253