P80C550 查看數據表（PDF） - Philips Electronics

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P80C550

80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer

Philips Electronics 

Philips Semiconductors

80C51 8-bit microcontroller family

4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer

Product specification

80C550/83C550/87C550

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’.

Figure 10. AC Testing Input/Output

SU00717

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.

SU00011

Figure 11. Float Waveform

30

25

ICC mA 20

MAX ACTIVE MODE

15

TYP ACTIVE MODE

10

5

MAX IDLE MODE

TYP IDLE MODE

4MHz 8MHz 12MHz 16MHz

FREQ at XTAL1

SU00201

Figure 12. ICC vs. FREQ (Commercial Temp. Range)

Valid only within frequency specifications of the device under test

1998 May 01

20

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