C515 Datasheet, PDF (45/55 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

C515
AC Characteristics (16 MHz)
V_CC = 5 V + 10%, – 15%; V_SS = 0 V
T_A = 0 to 70 °C
T_A = – 40 to 85 °C
T_A = – 40 to 110 °C
for the SAB-C515-1RM
for the SAF-C515-1RM
for the SAH-C515-1RM
(C_L for port 0, ALE and PSEN outputs = 100 pF; C_L for all other outputs = 80 pF)
Program Memory Characteristics
Parameter
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
Symbol
Limit Values
16 MHz
Clock
min. max.
Variable Clock
1/t_CLCL = 1 MHz to 16 MHz
min.
max.
t_LHLL
t_AVLL
t_LLAX
t_LLIV
t_LLPL
t_PLPH
t_PLIV
t_PXIX
t ^*)
PXIZ
t *)
PXAV
t_AVIV
t_AZPL
85 –
2t_CLCL – 40
33 –
t_CLCL – 30
28 –
t_CLCL – 35
–
150 –
38 –
153 –
–
88
t_CLCL – 25
3t_CLCL – 35
–
0
–
0
–
43 –
55 –
t_CLCL – 8
–
198 –
0
–
0
–
–
–
4t_CLCL – 100
–
–
3t_CLCL – 100
–
t_CLCL – 20
–
5t_CLCL – 115
–
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
*) _{Interfacing the C515 to devices with float times up to 75 ns is permissible. This limited bus contention will not}
cause any damage to port 0 drivers.
CLKOUT Characteristics
Parameter
ALE to CLKOUT
CLKOUT high time
CLKOUT low time
CLKOUT low to ALE high
Symbol
Limit Values
16 MHz
Clock
min. max.
Variable Clock
1/t_CLCL = 1 MHz to 16 MHz
min.
max.
t_LLSH
t_SHSL
t_SLSH
t_SLLH
398 –
7 t_CLCL – 40 –
85 –
2 t_CLCL – 40 –
585 –
10 t_CLCL – 40 –
23
103 t_CLCL – 40
t_CLCL + 40
Unit
ns
ns
ns
ns
Semiconductor Group
45
1997-08-01