TY - GEN TI - Telecommunications DataBook U1 - 621.3822,TEL PB - National Semiconductor Corporation KW - Telecommunication engineering N1 - Digital Switching Components (Page-1), Telephone Set Components (Page-2), Modems (Page-3), Linear Building Blocks (Page-4), Fiber Optic Devices (Page-5), Microcontrollers and Peripherals (Page-6), Microprocessors and Peripherals (Page-7), Interface (Page,8), Physical Dimensions (Page-9) ER -