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Dot/Bar Display Driver
1855
ic
The LM3914 is a dot/bar display driver IC used for cascading multiple displays in dot mode. It features pins for power supply, ground, LED outputs, and control signals.
In stock
Specifications
2- Operating Voltage
- VCC/VDD/VIN/supply range: 2.5 to 36 VDC (recommended 4.75 to 18 VDC)
- Package
- PLCC, PDIP
Pinout
19| Pin | Name | Functions | Notes |
|---|---|---|---|
| — | V+ | POWER | Positive power supply |
| — | V- | POWER | Negative power supply |
| 1 | LED1 | PWM | First LED output |
| 2 | LED2 | PWM | Second LED output |
| 3 | LED3 | PWM | Third LED output |
| 4 | LED4 | PWM | Fourth LED output |
| 5 | LED5 | PWM | Fifth LED output |
| 6 | LED6 | PWM | Sixth LED output |
| 7 | LED7 | PWM | Seventh LED output |
| 8 | LED8 | PWM | Eighth LED output |
| 9 | LED9 | PWM | Ninth LED output |
| 10 | LED10 | PWM | Tenth LED output |
| 11 | LED11 | PWM | Eleventh LED output |
| 12 | REF ADJ | GPIO | Reference adjustment pin |
| 13 | MODE SELECT | GPIO | Mode selection pin |
| 14 | DIVIDER (LOW END) | GPIO | Divider low end pin |
| 15 | DIVIDER (HIGH END) | GPIO | Divider high end pin |
| 16 | SIGNAL INPUT | ADC | Signal input pin |
| 17 | REFERENCE OUTPUT | ADC | Reference output pin |
Interactive pinout
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