ISDN S/T HDLC 4-Line 192Kbps 3.3V 44-Pin LCC
44-Pin LCC Surface Mount Specialized UART IC
ISDN CTLR HDLC 4000Kbps 5V 44-Pin LCC
44-Pin LCC Surface Mount Controller IC, 4.75-5.25V, 0-70°C
IC TELECOM INTERFACE 44-PLCC
