GN1640

@@ -0,0 +1,69 @@+# GN1640++**GN Semic** · LED Display Drivers · SOP-28-300mil++GN1640 from GN Semic, in a SOP-28-300mil. 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 | GRID12 | output | Digit (grid) output 12. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. Connects to the common cathode of digit 12 in a multiplexed LED matrix. |+| 2 | GRID13 | output | Digit (grid) output 13. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 3 | GRID14 | output | Digit (grid) output 14. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 4 | GRID15 | output | Digit (grid) output 15. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 5 | GRID16 | output | Digit (grid) output 16. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 6 | GND | power_in | Ground reference (0 V) for logic and driver outputs. |+| 7 | DATA | input | Serial data input for the 2-wire (CLK/DATA) interface. Data is sampled on CLK; setup/hold ≥ 100 ns. VIH ≥ 0.7·VDD, VIL ≤ 0.2·VDD. |+| 8 | CLK | input | Serial clock input for the 2-wire (CLK/DATA) interface. Max 1 MHz (50% duty); pulse width ≥ 400 ns. |+| 9 | SEG1 | output | Segment output 1. P-channel open-drain, sources up to 50-60 mA (typ) at VOH=VDD-2 V. |+| 10 | SEG2 | output | Segment output 2. P-channel open-drain, sources up to 50-60 mA (typ) at VOH=VDD-2 V. |+| 11 | SEG3 | output | Segment output 3. P-channel open-drain, sources up to 50-60 mA (typ) at VOH=VDD-2 V. |+| 12 | SEG4 | output | Segment output 4. P-channel open-drain, sources up to 50-60 mA (typ) at VOH=VDD-2 V. |+| 13 | SEG5 | output | Segment output 5. P-channel open-drain, sources up to 50-60 mA (typ) at VOH=VDD-2 V. |+| 14 | SEG6 | output | Segment output 6. P-channel open-drain, sources up to 50-60 mA (typ) at VOH=VDD-2 V. |+| 15 | SEG7 | output | Segment output 7. P-channel open-drain, sources up to 50-60 mA (typ) at VOH=VDD-2 V. |+| 16 | SEG8 | output | Segment output 8. P-channel open-drain, sources up to 50-60 mA (typ) at VOH=VDD-2 V. |+| 17 | VDD | power_in | Positive supply. Operating range 3.0-5.5 V (typ 5.0 V). Absolute max +7 V. Quiescent IDD ≈ 130 µA (typ). |+| 18 | GRID1 | output | Digit (grid) output 1. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 19 | GRID2 | output | Digit (grid) output 2. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 20 | GRID3 | output | Digit (grid) output 3. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 21 | GRID4 | output | Digit (grid) output 4. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 22 | GRID5 | output | Digit (grid) output 5. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 23 | GRID6 | output | Digit (grid) output 6. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 24 | GRID7 | output | Digit (grid) output 7. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 25 | GRID8 | output | Digit (grid) output 8. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 26 | GRID9 | output | Digit (grid) output 9. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 27 | GRID10 | output | Digit (grid) output 10. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |+| 28 | GRID11 | output | Digit (grid) output 11. N-channel open-drain, sinks up to 120 mA (typ) at VOL=0.3 V. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | GN Semic |+| Package | SOP-28-300mil |+| Category | LED-drv |+| Pins | 28 |++## Ordering variants++- `GN1640`+- `GN1640T`++## CAD (KiCad official)++- Symbol: `GN1640`+- Footprint: `Package_SO:SOP-28_8.4x18.16mm_P1.27mm`+- 3D model: SOP-28-300mil (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [GN Semic datasheet](docs/gn1640-datasheet.pdf) (13 pp, sha256 `786deb214b31278e`, 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/gn1640-datasheet.pdf)

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