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Absolute Maximum Ratings

(1)

PCA8550

NONVOLATILE 5-BIT REGISTER

SCPS050C – MARCH 1999 – REVISED MAY 2005

the serial data (SDA) input/output while the serial clock (SCL) input is high. After the start condition, the device

address byte is sent, MSB first, including the data-direction bit (R/W). This device does not respond to the

general call address. After receiving the valid address byte, this device responds with an acknowledge, a low on

the SDA input/output during the high of the acknowledge-related clock pulse.

The data byte follows the address acknowledge. If the R/W bit is high, the data from this device are the values

read from the nonvolatile register. If the R/W bit is low, the data are from the master, to be written into the

register. A valid data byte is one in which the three high-order bits are low. The first valid data byte that is

received is written into the register, following the stop condition. If an invalid data byte is received, it is

acknowledged, but is not written into the register. The data byte is followed by an acknowledge sent from this

device. If other data bytes are sent from the master, following the acknowledge, they are ignored by this device.

A stop condition, a low-to-high transition on the SDA input/output while the SCL input is high, is sent by the

master. If the WP input is low during the falling edge of the first valid data byte acknowledge on the SCL input

nonvolatile register. Data are written only if complete bytes are received and acknowledged. Writing to the

BIT

BYTE

7 (MSB)

6

5

4

3

2

1

0 (LSB)

Address

H

L

L

H

H

H

L

R/W

NON-

Data

L

L

L

MUX OUT D

MUX OUT C

MUX OUT B

MUX OUT A

MUXED OUT

over operating free-air temperature range (unless otherwise noted)

MIN

MAX

UNIT

Supply voltage range

–0.5

6.5

V

–0.5

6.5

V

–0.5

6.5

Output voltage range

–0.5

2.9

V

–0.5

Input clamp current

–50

mA

Output clamp current

–50, +10

mA

Input/output clamp current

–50

mA

Continuous output current

±15

mA

±30

mA

D package

113

θ

JA

DB package

131

°C/W

PW package

149

Storage temperature range

–65

85

°C

(1)

Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating

conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

(2)

The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.

(3)

(4)

The package thermal impedance is calculated in accordance with JESD 51.

3