P87C552 datasheet(42/74 Pages) PHILIPS

Part #	P87C552

Description	80C51 8-bit microcontroller 8K/256 OTP, 8 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O, low voltage 2.7V.5.5V, low power

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Manufacturer	PHILIPS [NXP Semiconductors]

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Philips Semiconductors

Preliminary specification

P87C552

80C51 8-bit microcontroller

8K/256 OTP, 8 channel 10 bit A/D, I2C, PWM,

capture/compare, high I/O, low voltage (2.7V–5.5V), low power

1999 Mar 30

42

S

SLA

RA

DATA

P or S

B0H

A8H

B8H

RECEPTION OF THE

OWN SLAVE ADDRESS

AND TRANSMISSION

OF ONE OR MORE

DATA BYTES

A

DATA

A

C0H

n

ANY NUMBER OF DATA BYTES AND THEIR ASSOCIATED ACKNOWLEDGE BITS

THIS NUMBER (CONTAINED IN S1STA) CORRESPONDS TO A DEFINED STATE OF THE I2C BUS. SEE TABLE 9.

DATA

A

All “1”s

A

FROM MASTER TO SLAVE

FROM SLAVE TO MASTER

C8H

P or S

LAST DATA BYTE TRANSMITTED.

SWITCHED TO NOT ADDRESSED

SLAVE (AA BIT IN S1CON = “0”

ARBITRATION LOAST AS MST

AND ADDRESSED AS SLAVE

SU00974

Figure 42. Format and States of the Slave Transmitter Mode

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