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OM5232

CMOS single-chip 8-bit microcontroller

Philips Electronics 

Philips Semiconductors

CMOS single-chip 8-bit microcontroller

Product specification

OM5232

VDD–0.5

0.2VDD+0.9

0.45V

0.2VDD–0.1

NOTE:

AC INPUTS DURING TESTING ARE DRIVEN AT VDD–0.5 FOR A LOGIC ’1’ AND

0.45V FOR A LOGIC ’0’. TIMING MEASUREMENTS ARE MADE AT VIH MIN FOR A

LOGIC ’1’ AND VIL MAX FOR A LOGIC ’0’.

Figure 7. AC Testing Input/Output

VDD

RST

(NC)

CLOCK SIGNAL

XTAL2

XTAL1

VSS

VDD

IDD

VDD

VDD

P0

EA

P1.6

*

P1.7

*

VLOAD

VLOAD+0.1V

VLOAD–0.1V

TIMING

REFERENCE

POINTS

VOH–0.1V

VOL+0.1V

NOTE:

FOR TIMING PURPOSES, A PORT IS NO LONGER FLOATING WHEN A 100MV

CHANGE FROM LOAD VOLTAGE OCCURS, AND BEGINS TO FLOAT WHEN A

100mV CHANGE FROM THE LOADED VOH/VOL LEVEL OCCURS. IOH/IOL > +

20mA.

Figure 8. Float Waveform

(NC)

CLOCK SIGNAL

RST

EA

XTAL2

XTAL1

VSS

VDD

IDD

VDD

VDD

P0

P1.6

*

P1.7

*

Figure 9. IDD Test Condition, Active Mode

All other pins are disconnected

(NC)

RST

EA

XTAL2

XTAL1

VSS

Figure 10. IDD Test Condition, Idle Mode

All other pins are disconnected

VDD

VDD

IDD

VDD

P0

P1.6

*

P1.7

*

Figure 11. IDD Test Condition, Power Down Mode

All other pins are disconnected. VDD = 2V to 5.5V

NOTE:

* Ports 1.6 and 1.7 should be connected to VCC through resistors of sufficiently high value such that the sink current into these pins does not

exceed the IOL1 specification.

December 1994

11

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