GN1640T

@@ -0,0 +1,69 @@+# GN1640T++**GN Semic** · LED Display Drivers · SSOP-28-150mil++GN1640T from GN Semic, in a SSOP-28-150mil. 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 | Grid (digit) output 12. N-channel open-drain output that sinks common-cathode LED digit current. Max sink current 200 mA (IO2 abs max); typical IOL1 = 120 mA at VOL = 0.3 V. |+| 2 | GRID13 | output | Grid (digit) output 13. N-channel open-drain digit driver for common-cathode LED matrix. |+| 3 | GRID14 | output | Grid (digit) output 14. N-channel open-drain digit driver. |+| 4 | GRID15 | output | Grid (digit) output 15. N-channel open-drain digit driver. |+| 5 | GRID16 | output | Grid (digit) output 16. N-channel open-drain digit driver. |+| 6 | GND | power_in | Ground reference (0 V). |+| 7 | DATA | input | Serial data input for the 2-wire (CLK/DATA) interface. VIH >= 0.7*VDD, VIL <= 0.2*VDD. Data changes only while CLK is low; a high-to-low DATA transition while CLK is high signals START, a low-to-high transition while CLK is high signals STOP. |+| 8 | CLK | input | Serial clock input for the 2-wire interface. Max clock frequency Fmax = 1 MHz at 50% duty cycle; clock pulse width PWCLK = 400 ns typical; tSETUP = tHOLD = 100 ns. |+| 9 | SEG1 | output | Segment output 1. P-channel open-drain source driver for LED segments. IOH1 = 50 mA typ at VOH = VDD-2 V; abs max IO1 = 50 mA. |+| 10 | SEG2 | output | Segment output 2. P-channel open-drain segment driver. |+| 11 | SEG3 | output | Segment output 3. P-channel open-drain segment driver. |+| 12 | SEG4 | output | Segment output 4. P-channel open-drain segment driver. |+| 13 | SEG5 | output | Segment output 5. P-channel open-drain segment driver. |+| 14 | SEG6 | output | Segment output 6. P-channel open-drain segment driver. |+| 15 | SEG7 | output | Segment output 7. P-channel open-drain segment driver. |+| 16 | SEG8 | output | Segment output 8. P-channel open-drain segment driver. |+| 17 | VDD | power_in | Supply voltage. Operating range 3.0 V - 5.5 V, typical 5.0 V. Abs max +7.0 V. Typical quiescent current IDD = 130 uA (no load, VIN = VDD). |+| 18 | GRID1 | output | Grid (digit) output 1. N-channel open-drain digit driver. |+| 19 | GRID2 | output | Grid (digit) output 2. N-channel open-drain digit driver. |+| 20 | GRID3 | output | Grid (digit) output 3. N-channel open-drain digit driver. |+| 21 | GRID4 | output | Grid (digit) output 4. N-channel open-drain digit driver. |+| 22 | GRID5 | output | Grid (digit) output 5. N-channel open-drain digit driver. |+| 23 | GRID6 | output | Grid (digit) output 6. N-channel open-drain digit driver. |+| 24 | GRID7 | output | Grid (digit) output 7. N-channel open-drain digit driver. |+| 25 | GRID8 | output | Grid (digit) output 8. N-channel open-drain digit driver. |+| 26 | GRID9 | output | Grid (digit) output 9. N-channel open-drain digit driver. |+| 27 | GRID10 | output | Grid (digit) output 10. N-channel open-drain digit driver. |+| 28 | GRID11 | output | Grid (digit) output 11. N-channel open-drain digit driver. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | GN Semic |+| Package | SSOP-28-150mil |+| Category | LED-drv |+| Pins | 28 |++## Ordering variants++- `GN1640TT`+- `GN1640T`++## CAD (KiCad official)++- Symbol: `GN1640T`+- Footprint: `Package_SO:SSOP-28_5.3x10.2mm_P0.65mm`+- 3D model: SSOP-28-150mil (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [GN Semic datasheet](docs/gn1640t-datasheet.pdf) (13 pp, sha256 `ef899cd4b78754dd`, 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/gn1640t-datasheet.pdf)

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