| 1 | P87C54UBAA | 80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz | 346K |   |   | 
	
	 
		| 2 | P87C54UBAA | 80C51 8-bit microcontroller family 8K.64K/256.1K OTP/ROM/ROMless, low voltage 2.7V.5.5V, low power, high speed 33 MHz | 368K |   |   | 
	
	 
		| 3 | P87C54UBAA | 80C51 8-bit microcontroller family 8K-4K/256-1K OTP/ROM/ROMless, low voltage (2.7V-5.5V), low power, high speed (33 MHz) | 361K |   |   | 
	
	 
		| 4 | P87C54UBAA | 8-bit CMOS (low voltage, low power and high speed) microcontroller families | 348K |   |   | 
	
	 
		| 5 | P87C54UBAA | 8-bit CMOS (low voltage, low power and high speed) microcontroller families | 348K |   |   | 
	
	 
		| 6 | P87C54UBAA | 80C51 8-bit microcontroller family 8K-4K/256-1K OTP/ROM/ROMless, low voltage (2.7V-5.5V), low power, high speed (33 MHz) | 361K |   |   | 
	
	 
		| 7 | P87C54UBAA-T | 8-Bit Microcontroller | 3447K |   |   |