80C51 8-bit microcontroller family 8K64K/2561K OTP/ROM/ROMless, low voltage (2.7V5.5V), low power, high speed (33 MHz)
NXP Semiconductors N.V.
NXP Semiconductors N.V. - P80C54SBAA
NXP Semiconductors N.V. - P80C54SBBB
NXP Semiconductors N.V. - P80C54SFPN
NXP Semiconductors N.V. - P80C54UBPN
NXP Semiconductors N.V. - P80C54UBBB
NXP Semiconductors N.V. - P80C54UFA A