SAB80C515A-5 Datasheet, PDF (99/108 Pages) Siemens Semiconductor Group – 8-Bit CMOS Single-Chip Microcontroller Family

SAB 80C515A/83C515A-5
AC Characteristics
V _CC = 5 V + 10 %, – 15 %; V _SS = 0 V
T _A = 0 to 70 ˚C for the SAB 80C515A/83C515A-5
T _A = – 40 to 85 ˚C for the SAB 80C515A-T3/83C515A-5-T3
(C _L for port 0, ALE and PSEN outputs = 100 pF; C_L for all other outputs = 80 pF)
Parameter
Symbol
Limit values
Unit
18 MHz clock
min. max.
Variable clock
1/t_CLCL = 3.5 MHz to 18 MHz
min.
max.
Program Memory Characteristics
ALE pulse width
t _LHLL
71
–
2 t_{C LCL} – 40 –
ns
Address setup to ALE t_AVLL
26
–
t_{C LCL} – 30
–
ns
Address hold after ALE t_LLAX
26
–
t_{C LCL} – 30
–
ns
ALE to valid
instruction in
t _LLIV
–
122 –
4 t_{C LCL} – 100 ns
ALE to PSEN
PSEN pulse width
PSEN to valid
instruction in
t _LLPL
t _PLPH
t _PLIV
31
–
132 ^–
–
92
t_{C LCL} – 25
–
ns
3 t_{C LCL} – 35 ^–
ns
–
3 t_{C LCL} – 75 ns
Input instruction hold
t _PXIX
0
–
0
–
ns
after PSEN
Input instruction float
after PSEN
t _PXIZ ^*)
–
46
–
t_{C LCL} – 10
ns
Address valid after
t _PXAV ^*) 48
–
t_{C LCL} – 8
–
ns
PSEN
Address to valid
instruction in
t _AVIV
–
218 ^–
5 t_{C LCL} – 60 ns
Address float to PSEN t_{A ZPL}
0
–
0
–
ns
*) _{Interfacing the SAB 80C515A 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
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