80C154/83C154

Rev.F (14 Jan. 97)

18

MATRA MHS

Note 1 : ICC is measured with all output pins

disconnected ;

XTAL1

driven

with

TCLCH,

TCHCL = 5 ns, VIL = VSS + .5 V, VIH = VCC –.5 V ;

XTAL2 N.C. ; EA = RST = Port 0 = VCC. ICC would be

slighty higher if a crystal oscillator used.

Idle ICC is measured with all otput pins disconnected ;

XTAL1 driven with TCLCH, TCHCL = 5 ns, VIL =

VSS + 5 V, VIH = VCC -.5 V ; XTAL2 N.C ; Port

0 = VCC ; EA = RST = VSS.

Power Down ICC is measured with all output pins

disconnected ; EA = PORT 0 = VCC ; XTAL2 N.C. ;

RST = VSS.

Note 2 : Capacitance loading on Ports 0 and 2 may cause

spurious noise pulses to be superimposed on the VOLS of

ALE and Ports 1 and 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

operations. In the worst cases (capacitive loading 100

pF), the noise pulse on the ALE line may exceed 0.45 V

may exceed 0,45 V with maxi VOL peak 0.6 V A Schmitt

Trigger use is not necessary.

Figure 15. ICC Test Condition, Idle Mode.

All other pins are disconnected.

Figure 16. ICC Test Condition, Active Mode.

All other pins are disconnected.

Figure 17. ICC Test Condition, Power Down Mode.

All other pins are disconnected.

Figure 18. Clock Signal Waveform for ICC Tests in Active and Idle Modes. TCLCH = TCHCL = 5 ns.