C504 SIEMENS [Siemens Semiconductor Group], C504 Datasheet - Page 36

• Manufacturer Part Number: C504
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

Parameter
1) Capacitive loading on ports 0 and 2 may cause spurious noise pulses to be superimposed on the
2) Capacitive loading on ports 0 and 2 may cause the
3)
4)
5)
6)
7) Overload conditions occur if the standard operating conditions are exceeded, i.e. the voltage on any pin
8) Not 100 % tested, guaranteed by design characterization.
9) The typical
Semiconductor Group
Power supply current:
and port 3. The noise is due to external bus capacitance discharging into the port 0 and port 2 pins when these
pins make 1-to-0 transitions during bus operation. In the worst case (capacitive loading > 100 pF), the noise
pulse on ALE line may exceed 0.8 V. In such cases it may be desirable to qualify ALE with a schmitt-trigger,
or use an address latch with a schmitt-trigger strobe input.
0.9
I
EA = Port0 =
I
XTAL1 driven with
EA = Port0 = Port1 = RESET =
oscillator is used (appr. 1 mA).
I
XTAL1 driven with
RESET = EA =
I
active mode:
idle mode:
where
exceeds the specified range (i.e.
must remain within the specified limits. The absolute sum of input currents on all port pins may not exceed 50
mA.
PD
CC
CC
CC max
(power-down mode) is measured under following conditions:
(active mode) is measured with:
(idle mode) is measured with all output pins disconnected and with all peripherals disabled;
V
Active mode, 12 MHz
Idle mode, 12 MHz
Active mode, 24 MHz
Idle mode, 24 MHz
Active mode, 40 MHz
Idle mode, 40 MHz
Power-down mode
CC
f
at other frequencies is given by:
osc
specification when the address lines are stabilizing.
is the oscillator frequency in MHz.
I
CC
V
CC
values are periodically measured at
V
TBD
TBD
SS
; RESET =
t
t
CLCH
CLCH
; Port0 =
,
,
t
t
CHCL
CHCL
5)
5)
5)
V
V
4)
4)
4)
SS
CC
= 5 ns ,
= 5 ns,
V
; XTAL2 = N.C.; XTAL1 =
CC
; all other pins are disconnected.
V
OV
; all other pins are disconnected.
Symbol
I
I
I
I
I
I
I
CC
CC
CC
CC
CC
CC
PD
>
V
V
IL
V
IL
CC
=
=
V
V
+ 0.5 V or
SS
I
SS
CC
typ.
16
8
25
13
38
17
1
+ 0.5 V,
+ 0.5 V,
values are given in mA and measured at
36
T
Limit Values
9)
A
V
= +25 ˚C but not 100% tested.
OH
V
V
OV
V
IH
on ALE and PSEN to momentarily fall below the
V
IH
<
SS
=
max.
TBD
TBD
TBD
TBD
TBD
TBD
50
=
V
V
;
V
SS
CC
V
CC
AGND
–
– 0.5 V; XTAL2 = N.C.;
– 0.5 V; XTAL2 = N.C.;
0.5 V). The supply voltage
I
=
CC
V
would be slightly higher if a crystal
SS
Unit Test Condition
mA
mA
mA
mA
mA
mA
; all other pins are disconnected.
A
V
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
CC
= 5 V,
= 5 V,
= 5 V,
= 5 V,
= 5 V,
= 5 V,
= 2 5.5 V
V
CC
4)
5)
4)
5)
4)
5)
V
= 5 V.
CC
V
OL
3)
and
C504
of ALE
V
SS