89C52 datasheet(32/39 Pages) PHILIPS

tên linh kiện	89C52

Giải thích chi tiết về linh kiện	80C51 8-bit microcontroller family 4K/8K/16K/32K Flash

PDF	39 Pages

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nhà sản xuất	PHILIPS [NXP Semiconductors]

Trang chủ	http://www.nxp.com

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Philips Semiconductors

Product data

89C51/89C52/89C54/89C58

80C51 8-bit microcontroller family

4K/8K/16K/32K Flash

2002 Jan 15

VCC–0.5

0.45V

0.2VCC+0.9

0.2VCC–0.1

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’.

SU00717

Figure 23. 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 24. Float Waveform

Frequency at XTAL1 (MHz)

ICC (mA)

SU01495

Icc IDLE MODE (TYP.)

Icc MAX ACTIVE MODE (TYP.)

Icc MAX. ACTIVE MODE

Icc MAX. IDLE MODE

Figure 25. ICC vs. FREQ

Valid only within frequency specifications of the device under test

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