Ordering Information
Speed
(MHz)
12
Power
Supply
5V ± 20%
16
5V ± 20%
20
5V ± 20%
24
5V ± 20%
Ordering Code
AT89C51-12AC
AT89C51-12JC
AT89C51-12PC
AT89C51-12QC
AT89C51-12AI
AT89C51-12JI
AT89C51-12PI
AT89C51-12QI
AT89C51-16AC
AT89C51-16JC
AT89C51-16PC
AT89C51-16QC
AT89C51-16AI
AT89C51-16JI
AT89C51-16PI
AT89C51-16QI
AT89C51-20AC
AT89C51-20JC
AT89C51-20PC
AT89C51-20QC
AT89C51-20AI
AT89C51-20JI
AT89C51-20PI
AT89C51-20QI
AT89C51-24AC
AT89C51-24JC
AT89C51-24PC
AT89C51-24QC
AT89C51-24AI
AT89C51-24JI
AT89C51-24PI
AT89C51-24QI
Package
44A
44J
40P6
44Q
44A
44J
40P6
44Q
44A
44J
40P6
44Q
44A
44J
40P6
44Q
44A
44J
40P6
44Q
44A
44J
40P6
44Q
44A
44J
40P6
44Q
44A
44J
40P6
44Q
44A
44J
40P6
44Q
Package Type
44-lead, Thin Plastic Gull Wing Quad Flatpack (TQFP)
44-lead, Plastic J-leaded Chip Carrier (PLCC)
40-lead, 0.600” Wide, Plastic Dual Inline Package (PDIP)
44-lead, Plastic Gull Wing Quad Flatpack (PQFP)
AT89C51
Operation Range
Commercial
(0° C to 70° C)
Industrial
(-40° C to 85° C)
Commercial
(0° C to 70° C)
Industrial
(-40° C to 85° C)
Commercial
(0° C to 70° C)
Industrial
(-40° C to 85° C)
Commercial
(0° C to 70° C)
Industrial
(-40° C to 85° C)
15