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C515C Datasheet, PDF (60/69 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller
C515C
AC Characteristics
VCC = 5 V + 10%, – 15%; VSS = 0 V
TA = 0 to 70 °C
TA = – 40 to 85 °C
TA = – 40 to 110 °C
for the SAB-C515C-8R
for the SAF-C515C-8R
for the SAH-C515C-8R
(CL for port 0, ALE and PSEN outputs = 100 pF; CL for all other outputs = 80 pF)
Program Memory Characteristics
Parameter
ALE pulse width
Address setup to ALE
Address hold after ALE
ALE to valid instruction in
ALE to PSEN
PSEN pulse width
PSEN to valid instruction in
Input instruction hold after PSEN
Input instruction float after PSEN
Address valid after PSEN
Address to valid instruction in
Address float to PSEN
Symbol
Limit Values
Unit
10-MHz clock
Duty Cycle
0.4 to 0.6
Variable Clock
1/CLP = 2 MHz to
10 MHz
min. max. min.
max.
tLHLL
60
–
CLP - 40 –
ns
tAVLL
15
–
TCLHmin -25 –
ns
tLLAX
15
–
TCLHmin -25 –
ns
tLLIV
–
113 –
2 CLP - 87 ns
tLLPL
20
–
TCLLmin -20 –
ns
tPLPH
115 –
CLP+
–
ns
TCLHmin -30
tPLIV
–
75 –
CLP+
ns
TCLHmin- 65
tPXIX
0
–
0
–
ns
t *)
PXIZ
–
30 –
TCLLmin -10 ns
t *)
PXAV
35
–
TCLLmin - 5 –
ns
tAVIV
–
180 –
2 CLP + ns
TCLHmin -60
tAZPL
0
0
–
ns
*) Interfacing the C515C to devices with float times up to 35 ns is permissible. This limited bus contention will not
cause any damage to port 0 drivers.
Semiconductor Group
60
1997-07-01