| Part Number | TP5089 |
| Manufacturer | National Semiconductor |
| Title | TP5089 DTMF (TOUCH-TONE) Generator |
| Description | The TP5089 is a low threshold voltage field-implanted metal gate CMOS integrated circuit It interfaces directly to a standard telephone keypad and... |
| Features |
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3 5V – 10V operation when generating tones 2V operation of keyscan and MUTE logic Static sensing of key closures or logic inputs On-chip 3 579545 MHz crystal-controlled oscillator Output amplitudes proportional to supply voltage Hi... |
| Datasheet |
 TP5089 Datasheet
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