| Manufacturer | Part Number | Description |
|---|---|---|
NXP Semiconductors
| 83C51FB | 80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless/ low voltage 2.7V.5.5V/ low power/ high speed 33 MHz |
Intel Corporation
| 83C51FB | CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLERS |
