P83C524 datasheet(72/76 Pages) PHILIPS

72 / 76 page

1997 Dec 15

Philips Semiconductors

Product speciﬁcation

8-bit microcontrollers

P83C524; P80C528; P83C528

27.3.2.3

Method (PLCC and QFP)

During placement and before soldering, the package must

be fixed with a droplet of adhesive. The adhesive can be

applied by screen printing, pin transfer or syringe

dispensing. The package can be soldered after the

adhesive is cured.

Maximum permissible solder temperature is 260

°C, and

maximum duration of package immersion in solder is

10 seconds, if cooled to less than 150

°C within

6 seconds. Typical dwell time is 4 seconds at 250

°C.

A mildly-activated flux will eliminate the need for removal

of corrosive residues in most applications.

27.3.3

REPAIRING SOLDERED JOINTS

Fix the component by first soldering two diagonally-

opposite end leads. Use only a low voltage soldering iron

(less than 24 V) applied to the flat part of the lead. Contact

time must be limited to 10 seconds at up to 300

°C. When

using a dedicated tool, all other leads can be soldered in

one operation within 2 to 5 seconds between

270 and 320

°C.

28 DEFINITIONS

29 LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these

products can reasonably be expected to result in personal injury. Philips customers using or selling these products for

use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such

improper use or sale.

30 PURCHASE OF PHILIPS I2C COMPONENTS

Data sheet status

Objective speciﬁcation

This data sheet contains target or goal speciﬁcations for product development.

Preliminary speciﬁcation

This data sheet contains preliminary data; supplementary data may be published later.

Product speciﬁcation

This data sheet contains ﬁnal product speciﬁcations.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or

more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation

of the device at these or at any other conditions above those given in the Characteristics sections of this speciﬁcation

is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the speciﬁcation.

Purchase of Philips I2C components conveys a license under the Philips’ I2C patent to use the

components in the I2C system provided the system conforms to the I2C specification defined by

Philips. This specification can be ordered using the code 9398 393 40011.

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