7. Ordering Code Detail
Atmel Designator
Product Family
93C = Microwire-compatible
3-Wire Serial EEPROM
Device Density
56 = 2k
66 = 4k
Device Revision
AT 9 3 C 5 6 B - S S H M - B
Shipping Carrier Option
B or Blank = Bulk (Tubes)
T = Tape and Reel, Standard Quantity Option
E = Tape and Reel, Expanded Quantity Option
Operating Voltage
M = 1.7V to 5.5V
Package Device Grade or
Wafer/Die Thickness
H = Green, NiPdAu Lead Finish
Industrial Temperature Range
(-40°C to +85°C)
U = Green, Matte Sn Lead Finish
Industrial Temperature Range
(-40°C to +85°C)
11 = 11mil Wafer Thickness
Package Option
SS = JEDEC SOIC
X = TSSOP
MA = UDFN
ME = XDFN
C = VFBGA
WWU= Wafer Unsawn
AT93C56B/66B [DATASHEET] 11
Atmel-8735C-SEEPROM-AT93C56B-66B-Datasheet_012015