Data Sheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsIntegrated Circuits (ICs)SOIC 8 256 kBit 32 K x 8

24AA256/24LC256/24FC256

DS20001203X-page 16 1998-2021 Microchip Technology Inc.

Package Marking Information (Continued)

8-Lead TSSOP

Example

XXXX

XYWW

NNN

4LD

I133

13F

8-Lead TDFN

Example

XXX

YWW

EF4

133

Part

No.

Line Marking Codes

DFN MSOP PDIP SOIC SOIJ

TDFN

TSSOP CSP

I-Temp. E-Temp.

24AA256 24AA256 4A256T

(1)

24AA256 24AA256T

(1)

24AA256 EF6 EF5 4AD 249

24LC256 24LC256 4L256T

(1)

24LC256 24LC256T

(1)

24LC256 EF4 EF3 4LD 

24FC256 24FC256 4F256T

(1)

24FC256 24FC256T

(1)

24FC256 EF8  4FD 

Note 1: T = Temperature grade (I, E)

Legend: XX...X Part number or part number code

T Temperature (I, E)

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 (2 characters for small packages)

JEDEC

designator for Matte Tin (Sn)

Note: Standard OTP marking consists of Microchip part number, year code, week

code and traceability code.

Note: For very small packages with no room for the JEDEC

designator

, the marking will only appear on the outer carton or reel label.

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.

8-Lead SOIJ (5.28 mm)

Example

24LC256

213313F

I/SM

XXXXXXXX

YYWWNNN

XXXXXXXX