© 2005 Microchip Technology Inc.

DS21946A-page 11

TC4421A/TC4422A

5.0

PACKAGING INFORMATION

5.1

Package Marking Information

XXXXXXXX

XXXXXNNN

YYWW

8-Lead PDIP (300 mil)

Example:

TC4421A

PA ^ 256

0514

5-Lead TO-220

XXXXXXXXX

XXXXXXXXX

YYWWNNN

Example:

TC4421A

XXXXXXXXX

0514256

VAT^^

Legend: XX...X

Customer-specific information

Y

Year code (last digit of calendar year)

YY

Year code (last 2 digits of calendar year)

WW

Week code (week of January 1 is week ‘01’)

NNN

Alphanumeric traceability code

Pb-free JEDEC designator for Matte Tin (Sn)

*

This package is Pb-free. The Pb-free JEDEC designator (

)

can be found on the outer packaging for this package.

Note:

In the event the full Microchip part number cannot be marked on one line, it will

be carried over to the next line, thus limiting the number of available

characters for customer-specific information.

3

e

3

e

8-Lead DFN

Example

:

TC4421A

VMF^

0514

256

8-Lead SOIC (150 mil)

Example

:

XXXXXXXX

XXXXYYWW

NNN

TC4421A

SN

0514

256

3

e

3

e

3

e

3

e

XXXXXXX

XXXXXXX

XXYYWW

NNN