| 1 | ME63ZBX | 14 pin DIP, 5.0 Volt, ECL, PECL, Clock Oscillator | 194K |   |   | 
	
	 
		| 2 | ME63ZBX | 14 pin DIP, 5.0 Volt, ECL, PECL, Clock Oscillator | 262K |   |   | 
	
	 
		| 3 | ME63ZBX-R | 14 pin DIP, 5.0 Volt, ECL, PECL, Clock Oscillator | 194K |   |   | 
	
	 
		| 4 | ME63ZBX-R | 14 pin DIP, 5.0 Volt, ECL, PECL, Clock Oscillator | 262K |   |   |