Move the cursor over the box to highlight particular section
SST
XX
Family Signature
89 = C51 Core
X
Voltage Range
C = 2.7V to 5.5V
XX
Feature Set and Flash Memory Size
54 = C52 feature set + 16(20)kx858 = C52 feature set + 32(36)kx859 = C52 feature set + 60(64)kx8
XX
Operating Frequency
33 = 0 - 33 MHz
X
Release ID
Blank = Initial ReleaseA = First Enhancement
X
Operation Temperature
C = CommercialI = Industrial
X
Package Type
P = Plastic DIPN = PLCCTQ = TQFP
X
Package Modifier
I = 40 pinsJ = 44 pins
XXXXXA
C-Spec identification Code
Note: Part number description table describes usual part-numbering system for more chips, therefore this table can contain information, that might not be valid for the actually selected chip. The information here are provided on the best-effort basis and might be either inaccurate or incoplete. Therefore always check the latest datasheet of the chip for part number description detail. If you find some inaccuracy, let us please know.