NXP 8051 Cross Reference
The TK80C51FA contains a superset of previous 8051 architectures. As a result, it may be used to replace many earlier devices. The following table provides a cross reference to NXP 8051s.
80C31 Family
| Device | Temp | Speed | Package | Tekmos Replacement | Note |
| P80C31SBAA | C | 16 | PLCC | TK80C51FA-AC | 1 |
| P80C31SBBB | C | 16 | LQFP | TK80C51FA-BC | |
| P80C31SBPN | C | 16 | PDIP | TK80C51FA-PC | |
| P80C31SFAA | I | 16 | PLCC | TK80C51FA-AI | |
| P80C31SFBB | I | 16 | LQFP | TK80C51FA-BI | 1, 2 |
| P80C31SFPN | I | 16 | PDIP | TK80C51FA-PI | 1 |
| P80C31UBAA | C | 33 | PLCC | TK80C51FA-AC | 1 |
| P80C31UBBB | C | 33 | LQFP | TK80C51FA-BC | |
| P80C31UBPN | C | 33 | PDIP | TK80C51FA-PC | |
| P80C31UFAA | I | 33 | PLCC | TK80C51FA-AI | |
| P80C31UFBB | I | 33 | LQFP | TK80C51FA-BI | |
| P80C31UFPN | I | 33 | PDIP | TK80C51FA-PI |
80C32 Family
| Device | Temp | Speed | Package | Tekmos Replacement | Note |
| P80C32EBPN | PLCC | TK80C51FA-PC | 1 | ||
| P80C32IBAA | C | 33 | PLCC | TK80C51FA-AC | |
| P80C32IBBB | C | 33 | LQFP | TK80C51FA-BC | |
| P80C32IBPN | C | 33 | PDIP | TK80C51FA-PC | |
| P80C32NBPN | PDIP | TK80C51FA-PC | 1 | ||
| P80C32SBAA | C | 16 | PLCC | TK80C51FA-AC | |
| P80C32SBBB | C | 16 | LQFP | TK80C51FA-BC | |
| P80C32SBPN | C | 16 | PDIP | TK80C51FA-PC | |
| P80C32SFAA | I | 16 | PLCC | TK80C51FA-AI | |
| P80C32SFBB | I | 16 | LQFP | TK80C51FA-BI | |
| P80C32SFPN | I | 16 | PDIP | TK80C51FA-PI | |
| P80C32UBAA | C | 33 | PLCC | TK80C51FA-AC | |
| P80C32UBBB | C | 33 | LQFP | TK80C51FA-BC | |
| P80C32UBPN | C | 33 | PDIP | TK80C51FA-PC | |
| P80C32UFAA | I | 33 | PLCC | TK80C51FA-AI | |
| P80C32UFBB | I | 33 | LQFP | TK80C51FA-BI | |
| P80C32UFPN | I | 33 | PDIP | TK80C51FA-PI |
80C32X2 Family
| Device | Temp | Speed | Package | Tekmos Replacement | Note |
| P80C31X2BA | C | 30/33 | PLCC | TK80C51FA-AC | 2 |
| P80C31X2BN | C | 30/33 | PDIP | TK80C51FA-PC | 2 |
| P80C32X2BA | C | 30/33 | PLCC | TK80C51FA-AC | 2 |
| P80C32X2BN | C | 30/33 | PDIP | TK80C51FA-PC | 2 |
| P80C32X2BBD | C | 30/33 | LQFP | TK80C51FA-BC | 2 |
| P80C32X2FA | I | 30/33 | PLCC | TK80C51FA-AI | 2 |
| P80C32X2FN | I | 30/33 | PDIP | TK80C51FA-PI | 2 |
| P80C32X2FBD | I | 30/33 | LQFP | TK80C51FA-BI | 2 |
80C51FA Family
| Device | Temp | Speed | Package | Tekmos Replacement | Note |
| P80C51FA-4N | C | 16 | PDIP | TK80C51FA-PC | |
| P80C51FA-4A | C | 16 | PLCC | TK80C51FA-AC | |
| P80C51FA-4B | C | 16 | PQFP | TK80C51FA-BC | |
| P80C51FA-5N | I | 16 | PDIP | TK80C51FA-PI | |
| P80C51FA-5A | I | 16 | PLCC | TK80C51FA-AI | |
| P80C51FA-5B | I | 16 | PQFP | TK80C51FA-BI | |
| P80C51FA-IN | C | 33 | PDIP | TK80C51FA-PC | |
| P80C51FA-IA | C | 33 | PLCC | TK80C51FA-AC | |
| P80C51FA-IB | C | 33 | PQFP | TK80C51FA-BC | |
| P80C51FA-JN | I | 33 | PDIP | TK80C51FA-PI | |
| P80C51FA-JA | I | 33 | PLCC | TK80C51FA-AI | |
| P80C51FA-JB | I | 33 | PQFP | TK80C51FA-BI |
Notes:
- Contact Factory for specification matching.
- Tekmos parts have a maximum speed of 20 MHz with 6X clock.
| Device | Temperature Specification | Package |
| TK80C51FA-PC | 0 C – 70 C | PDIP 40 |
| TK80C51FA-PI | -40 C – 85 C | PDIP 40 |
| TK80C51FA-AC | 0 C – 70 C | PLCC 44 |
| TK80C51FA-AI | -40 C – 85 C | PLCC 44 |
| TK80C51FA-BC | 0 C – 70 C | LQFP 44 |
| TK80C51FA-BI | -40 C – 85 C | LQFP 44 |
| TK80C51FA-CC | 0 C – 70 C | TQFP 44 |
| TK80C51FA-CI | -40 C – 85 C | TQFP 44 |
| TK80C51FA-DI | -40 C – 85 C | Die in Wafer Form |
Microprocessors
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Main Office
Tekmos, Inc.
14121 Highway 290 West
Building #15
Austin, TX 78737
Phone: (512) 342-9871
