P87CL52X2 datasheet(39/47 Pages) PHILIPS

39 / 47 page

Philips Semiconductors

Product data

P87CL52X2/54X2

80C51 8-bit microcontroller family

8K/16K OTP 256 bytes RAM ROMless low voltage

(1.8 V to 3.3 V), low power, high speed (33 MHz)

2003 May 14

TBD

NOTE:

AC inputs during testing are driven at VCC –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’.

SU01726

Figure 25. AC Testing Input/Output

VLOAD

VLOAD+0.1V

VLOAD–0.1V

VOH–0.1V

VOL+0.1V

NOTE:

TIMING

REFERENCE

POINTS

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.

SU00718

Figure 26. Float Waveform

SU01757

FREQ AT XTAL1 (MHz)

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

02468

MAX ACTIVE MODE

TYP ACTIVE MODE

TYP IDLE MODE

MAX IDLE MODE

Figure 27. ICC vs. FREQ (1.8 V)

Valid only within frequency specifications of the device under test

SU01758

FREQ AT XTAL1 (MHz)

MAX ACTIVE MODE

TYP ACTIVE MODE

TYP IDLE MODE

MAX IDLE MODE

Figure 28. ICC vs. FREQ (3.3 V)

Valid only within frequency specifications of the device under test

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