C504 Datasheet, PDF (36/49 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

C504
Parameter
Power supply current:
Active mode, 12 MHz ⁴⁾
Idle mode, 12 MHz ⁵⁾
Active mode, 24 MHz ⁴⁾
Idle mode, 24 MHz ⁵⁾
Active mode, 40 MHz ⁴⁾
Idle mode, 40 MHz ⁵⁾
Power-down mode
Symbol
Limit Values
typ. ⁹⁾
max.
I_CC
16
I_CC
8
I_CC
25
I_CC
13
I_CC
38
I_CC
17
I_PD
1
TBD
TBD
TBD
TBD
TBD
TBD
50
Unit Test Condition
mA V_CC = 5 V, ⁴⁾
mA V_CC = 5 V, ⁵⁾
mA V_CC = 5 V, ⁴⁾
mA V_CC = 5 V, ⁵⁾
mA V_CC = 5 V, ⁴⁾
mA V_CC = 5 V, ⁵⁾
µA V_CC = 2…5.5 V ³⁾
1) Capacitive loading on ports 0 and 2 may cause spurious noise pulses to be superimposed on the V_OL of ALE
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.
2) Capacitive loading on ports 0 and 2 may cause the V_OH on ALE and PSEN to momentarily fall below the
0.9 V_CC specification when the address lines are stabilizing.
3) I_PD (power-down mode) is measured under following conditions:
EA = Port0 = V_CC ; RESET = V_SS ; XTAL2 = N.C.; XTAL1 = V_SS ; V_AGND = V_SS ; all other pins are disconnected.
4) I_CC (active mode) is measured with:
XTAL1 driven with t_CLCH , t_CHCL = 5 ns , V_IL = V_SS + 0.5 V, V_IH = V_CC – 0.5 V; XTAL2 = N.C.;
EA = Port0 = Port1 = RESET = V_CC ; all other pins are disconnected. I_CC would be slightly higher if a crystal
oscillator is used (appr. 1 mA).
5) I_CC (idle mode) is measured with all output pins disconnected and with all peripherals disabled;
XTAL1 driven with t_CLCH , t_CHCL = 5 ns, V_IL = V_SS + 0.5 V, V_IH = V_CC – 0.5 V; XTAL2 = N.C.;
RESET = EA = V_SS ; Port0 = V_CC ; all other pins are disconnected.
6) I_{CC max} at other frequencies is given by:
active mode: TBD
idle mode:
TBD
where f_osc is the oscillator frequency in MHz. I_CC values are given in mA and measured at V_CC = 5 V.
7) Overload conditions occur if the standard operating conditions are exceeded, i.e. the voltage on any pin
exceeds the specified range (i.e. V_OV > V_CC + 0.5 V or V_OV < V_SS – 0.5 V). The supply voltage V_CC and V_SS
must remain within the specified limits. The absolute sum of input currents on all port pins may not exceed 50
mA.
8) Not 100 % tested, guaranteed by design characterization.
9) The typical I_CC values are periodically measured at T_A = +25 ˚C but not 100% tested.
Semiconductor Group
36