Numero di parte	Produttore / Marca	Breve descrizione
U4090B	ATMEL / MICROCHIP	Monolithic Integrated Feature Phone Circuit IC
U4090B-FN	ATMEL / MICROCHIP	Monolithic Integrated Feature Phone Circuit IC
U4090B-P	ATMEL / MICROCHIP	Monolithic Integrated Feature Phone Circuit EMI Improved IC
U4090B-PFNG3Y	Microchip Technology	IC MONO FEATURE PHONE EMI 44SSOP
U4090B-PFNY	Microchip Technology	IC MONO FEATURE PHONE EMI 44SSOP
U4091BM-MFN	ATMEL / MICROCHIP	U4091BM-MFN ATMEL SOP
U4091BM-N	ATMEL / MICROCHIP	PROGRAMMABLE TELEPHONE AUDIO PROCESSOR IC
U4091BM-NF-NG3	ATMEL / MICROCHIP	U4091BM-NF-NG3 ATMEL SMD44
U4091BM-NFN	ATMEL / MICROCHIP	PROGRAMMABLE TELEPHONE AUDIO PROCESSOR IC
U4091BM-NFNG3	ATMEL / MICROCHIP	PROGRAMMABLE TELEPHONE AUDIO PROCESSOR IC
U4091BM-NFNG3Y	ATMEL / MICROCHIP	U4091BM-NFNG3Y ATMEL SSOP
U4091BM-R	ATMEL / MICROCHIP	Programmable Telephone Audio Processor IC
U4091BM-RFNG3Y	ATMEL / MICROCHIP	Programmable Telephone Audio Processor IC
U4091BM-RFNG3Y 19	Microchip Technology	IC AUDIO PROCESSOR PROGR 44SOIC
U4091BM-RFNG3Y19	ATMEL / MICROCHIP	U4091BM-RFNG3Y19 ATMEL SSO44
U4091BM-RFNGY	ATMEL / MICROCHIP	Programmable Telephone Audio Processor IC
U4091BM-RFNY	ATMEL / MICROCHIP	U4091BM-RFNY ATMEL ORIGINAL
U4091BM-RFNY 19	Microchip Technology	IC AUDIO PROCESSOR PROGR 44SOIC
U4091BMMFN	ATMEL / MICROCHIP	U4091BMMFN ATMEL ORIGINAL
U4091BMNFNY	ATMEL / MICROCHIP	U4091BMNFNY ATMEL ORIGINAL
U4092B-MSD	ATMEL / MICROCHIP	U4092B-MSD ATMEL ORIGINAL
U4092BMSD83	ATMEL / MICROCHIP	U4092BMSD83 ATMEL ORIGINAL
U409A	STMicroelectronics	U409A STM IC HSSOP36