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Dual precision timer
| Part number | LM556 Dual Timer |
|---|---|
| Category | Integrated Circuits › Timers & Oscillators |
| Package | DIP-14 |
| Pins | 14 |
LM556 Dual Timer pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | DISCH1 | oc | Timer 1 discharge |
| 2 | THRES1 | input | Timer 1 threshold |
| 3 | CTRL1 | analog | Timer 1 control voltage |
| 4 | RESET1 | input | Timer 1 reset |
| 5 | OUT1 | output | Timer 1 output |
| 6 | TRIG1 | input | Timer 1 trigger |
| 7 | GND | ground | Ground |
| 8 | TRIG2 | input | Timer 2 trigger |
| 9 | OUT2 | output | Timer 2 output |
| 10 | RESET2 | input | Timer 2 reset |
| 11 | CTRL2 | analog | Timer 2 control voltage |
| 12 | THRES2 | input | Timer 2 threshold |
| 13 | DISCH2 | oc | Timer 2 discharge |
| 14 | VCC | power | Supply |
Schematic symbol and footprint
Schematic symbol
Footprint: DIP-14 — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.