Interface is ISDN - Interface - Telecom Distributor - SI3232-G-FQ SI3232-KQ TP3404V

Part Number	Manufacturer / Brand	Brife Description	Part Status	Function	Interface	Number of Circuits	Voltage - Supply	Current - Supply	Power (Watts)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
SI3232-G-FQ	Silicon Labs	IC SLIC PROG DUAL-CH 64TQFP	Obsolete	Subscriber Line Interface Concept (SLIC), CODEC	ISDN	2	3.13 V ~ 3.47 V	28mA	280mW	0°C ~ 70°C	Surface Mount	64-TQFP	64-TQFP (10x10)
SI3232-KQ	Silicon Labs	IC SLIC PROG DUAL-CH 64TQFP	Obsolete	Subscriber Line Interface Concept (SLIC)	ISDN	2	3.13 V ~ 3.47 V	28mA	280mW	0°C ~ 70°C	Surface Mount	64-TQFP	64-TQFP (10x10)
TP3404V	Texas Instruments	IC ADAPTER DIG QDASL QUAD 28PLCC	Obsolete	Quad Digital Adapter for Subscriber Loops (QDASL)	ISDN	4	4.75 V ~ 5.25 V	75mA	-	0°C ~ 70°C	Surface Mount	28-LCC (J-Lead)	28-PLCC (11.51x11.51)
TP3420AN308	Texas Instruments	IC INTERFACE ISDB DEVICE 20DIP	Obsolete	-	ISDN	-	4.75 V ~ 5.25 V	-	-	-	Through Hole	20-DIP (0.300", 7.62mm)	20-DIP
TP3420AV308	Texas Instruments	IC TXRX INTERFACE DEVICE 20-PLCC	Obsolete	-	ISDN	-	4.75 V ~ 5.25 V	-	-	-	Surface Mount	20-LCC (J-Lead)	20-PLCC (9x9)
TP3420AV309	Texas Instruments	IC INTERFACE ISDN DEVICE 20-PLCC	Obsolete	Transceiver	ISDN	1	4.75 ~ 5.25 V	-	-	-	Surface Mount	20-LCC (J-Lead)	20-PLCC (9x9)