GN1651

@@ -0,0 +1,52 @@+# GN1651++**GN Semic** · LED Display Drivers · SOP-16++GN1651 from GN Semic, in a SOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | GND | power_in | Logic ground. Connect to system ground (0 V reference). |+| 2 | SG1/KS1 | output | Segment output 1 / key-scan line 1. N-channel open-drain output; drives an LED segment and is also used as a key-scan drive line. Typical low-level output current -25 mA at Vo=2 V. |+| 3 | SG2/KS2 | output | Segment output 2 / key-scan line 2. N-channel open-drain output. |+| 4 | SG3/KS3 | output | Segment output 3 / key-scan line 3. N-channel open-drain output. |+| 5 | SG4/KS4 | output | Segment output 4 / key-scan line 4. N-channel open-drain output. |+| 6 | SG5/KS5 | output | Segment output 5 / key-scan line 5. N-channel open-drain output. |+| 7 | SG6/KS6 | output | Segment output 6 / key-scan line 6. N-channel open-drain output. |+| 8 | SG7/KS7 | output | Segment output 7 / key-scan line 7. N-channel open-drain output. |+| 9 | DIG4 | output | Digit (grid) output 4. P-channel open-drain output; drives the common-anode of digit 4 of the LED display. Typical high-level output current 140 mA at Vo=VDD-0.3 V. |+| 10 | DIG3 | output | Digit (grid) output 3. P-channel open-drain output driving common-anode of digit 3. |+| 11 | DIG2 | output | Digit (grid) output 2. P-channel open-drain output driving common-anode of digit 2. |+| 12 | DIG1 | output | Digit (grid) output 1. P-channel open-drain output driving common-anode of digit 1. |+| 13 | VDD | power_in | Logic supply voltage. 5 V +/- 10% typical; recommended operating range 3.0 - 5.5 V (typical 5 V). Absolute max -0.5 to +7.0 V. |+| 14 | DIO | bidirectional | Serial data input/output. Input data changes while CLK is low and is transferred while CLK is high; the chip generates an ACK on the 9th clock of every byte by pulling DIO low. Output stage is N-channel open-drain with an internal 10 k pull-up. |+| 15 | CLK | input | Serial clock input. Data is sampled/shifted on the rising edge. VIH >= 0.7*VDD, VIL <= 0.3*VDD; max clock frequency 1 MHz at 50% duty cycle. |+| 16 | K1 | input | Key-scan data input. The value on this pin is latched at the end of each display period; used together with the SG1..SG7 key-scan drives to read a 1x7 key matrix. Has an internal 10 k pull-up. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | GN Semic |+| Package | SOP-16 |+| Category | LED-drv |+| Pins | 16 |++## CAD (KiCad official)++- Symbol: `GN1651`+- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`+- 3D model: SOP-16 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [GN Semic datasheet](docs/gn1651-datasheet.pdf) (10 pp, sha256 `e16a08f768bb8b9c`, retrieved 2026-08-17, tier: lcsc)+- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/gn1651-datasheet.pdf)

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