9.
Part Markings
AT25128B and AT25256B: Package Marking Information
8-lead TSSOP
8-lead SOIC
ATHYWW
AAAAAAA
ATMLHYWW
###%
AAAAAAAA
###% @
@
8-pad UDFN
8-ball VFBGA
2.0 x 3.0 mm Body
2.35 x 3.73 mm Body
###
###U
@YMXX
H%@
YXX
Note 1:
designates pin 1
Note 2: Package drawings are not to scale
Catalog Number Truncation
AT25128B
AT25256B
Truncation Code ###: 5DB
Truncation Code ###: 5EB
Date Codes
Voltages
Y = Year
4: 2014
5: 2015
6: 2016
7: 2017
M = Month
WW = Work Week of Assembly
% = Minimum Voltage
L: 1.8V min
8: 2018
9: 2019
0: 2020
1: 2021
A: January
B: February
...
02: Week 2
04: Week 4
...
L: December
52: Week 52
Country of Assembly
Lot Number
AAA...A = Atmel Wafer Lot Number
Grade/Lead Finish Material
@ = Country of Assembly
U: Industrial/Matte Tin/SnAgCu
H: Industrial/NiPdAu
Trace Code
Atmel Truncation
XX = Trace Code (Atmel Lot Numbers Correspond to Code)
Example: AA, AB.... YZ, ZZ
AT: Atmel
ATM: Atmel
ATML: Atmel
3/11/14
TITLE
DRAWING NO.
REV.
25128-256BSM, AT25128B and AT25256B Package Marking
Information
Package Mark Contact:
DL-CSO-Assy_eng@atmel.com
25128-256BSM
A
AT25128B/256B [DATASHEET]
Atmel-8698E-SEEPROM-AT25128B-256B-Datasheet_012015
15
MICROCHIP [ MICROCHIP ]
