Numero di parte	Produttore / Marca	Breve descrizione
LM239P	STMicroelectronics	LOWPOWER QUAD VOLTAGE COMPARATORS IC
LM239PN	STMicroelectronics	LM239PN STM IC DIP
LM239PT	STMicroelectronics	IC COMPARTR QUAD BIPOLAR 14TSSOP
LM239QT	STMicroelectronics	IC COMPARATOR DIFF QUAD QFN16
LM239T	STMicroelectronics	LM239T STM IC TSSOP