C515 Datasheet, PDF (42/55 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

C515
Power Supply Current
Parameter
Active mode
Idle mode
Active mode with
slow-down enabled
Power-down mode
16 MHz
24 MHz
16 MHz
24 MHz
16 MHz
24 MHz
Symbol
Limit Values
typ. ⁹⁾
max. ¹⁰⁾
I_CC
13.7
18.2
I_CC
19.6
25
I_CC
6.9
I_CC
9.1
9.6
12.8
I_CC
4.9
7.0
I_CC
6.5
8.8
I_PD
10
30
Unit Test Condition
mA ⁴⁾
mA
mA ⁵⁾
mA
mA ⁶⁾
mA
µA V_CC = 2…5.5 V³⁾
1) Capacitive loading on ports 0 and 2 may cause spurious noise pulses to be superimposed on the V_OL of ALE
and ports1, 3, 4, and 5. 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 = Port 0 = Port 6 = V_CC ; RESET = V_CC; XTAL1 = N.C.; PE = XTAL2 = V_SS ; V_AGND = V_SS ; V_AREF = V_CC ; all
other pins are disconnected. The typical I_PD current is measured at V_CC = 5 V.
4) I_CC (active mode) is measured with:
XTAL2 driven with t_CLCH , t_CHCL = 5 ns , V_IL = V_SS + 0.5 V, V_IH = V_CC – 0.5 V; XTAL1 = N.C.;
EA = Port 0 = Port 6 = V_CC ; RESET = V_SS ; all other pins are disconnected.
5) I_CC (idle mode) is measured with all output pins disconnected and with all peripherals disabled;
XTAL2 driven with t_CLCH , t_CHCL = 5 ns, V_IL = V_SS + 0.5 V, V_IH = V_CC – 0.5 V; XTAL1 = N.C.;
EA = Port 0 = Port 6 = V_CC ; RESET = V_CC ; all other pins are disconnected;
6) I_CC (active mode with slow-down mode) is measured : TBD
7) I_CC (active mode with slow-down mode) is measured : TBD
8) Overload conditions occur if the standard operating conditions are exceeded, ie. 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.
9) Not 100% tested, guaranteed by design characterization
10)The typical I_CC values are periodically measured at T_A = +25 °C but not 100% tested.
Semiconductor Group
42
1997-08-01