GN1650

@@ -0,0 +1,57 @@+# GN1650++**GN Semic** · LED Display Drivers · SOP-16++GN1650 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 | DIG1 | output | Digit/key-scan output 1. LED digit (common) drive output - active low for LED drive, active high when used as a keypad scan output. Sinks up to ~150 mA per digit line. |+| 2 | CLK | input | Serial clock input for the 2-wire (I2C-like) interface. Internal pull-up (typ. 200 uA). VIL max 0.8 V, VIH min 2.0 V. Data is latched on the rising edge; max ~4 Mbps. |+| 3 | DIO | bidirectional | Serial data input/output for the 2-wire interface. Open-drain with internal pull-up (typ. 300 uA). Carries commands and read-back key-scan data; changes only while CLK is low. |+| 4 | GND | power_in | Ground reference (0 V) for supply, logic, and drive currents. |+| 5 | DIG2 | output | Digit/key-scan output 2. LED digit (common) drive output - active low for LED drive, active high when used as a keypad scan output. |+| 6 | DIG3 | output | Digit/key-scan output 3. LED digit (common) drive output - active low for LED drive, active high when used as a keypad scan output. |+| 7 | DIG4 | output | Digit/key-scan output 4. LED digit (common) drive output - active low for LED drive, active high when used as a keypad scan output. |+| 8 | A/KI1 | bidirectional | LED segment A drive output (active high, up to ~25 mA) / keypad column input KI1 (active high, internal pull-down ~50 uA typ.). |+| 9 | B/KI2 | bidirectional | LED segment B drive output (active high) / keypad column input KI2 (active high, internal pull-down). |+| 10 | VDD | power_in | Supply voltage input, 3.0 V to 5.5 V (typ. 5 V). Datasheet recommends a 104 (100 nF) decoupling capacitor placed within 2 cm of the VDD pin; typical operating current 80 mA, max 230 mA. |+| 11 | C/KI3 | bidirectional | LED segment C drive output (active high) / keypad column input KI3 (active high, internal pull-down). |+| 12 | D/KI4 | bidirectional | LED segment D drive output (active high) / keypad column input KI4 (active high, internal pull-down). |+| 13 | E/KI5 | bidirectional | LED segment E drive output (active high) / keypad column input KI5 (active high, internal pull-down). |+| 14 | F/KI6 | bidirectional | LED segment F drive output (active high) / keypad column input KI6 (active high, internal pull-down). |+| 15 | G/KI7 | bidirectional | LED segment G drive output (active high) / keypad column input KI7 (active high, internal pull-down). |+| 16 | DP/KP | output | LED decimal-point segment output; also outputs a keypad flag/marker signal. Internal strong pull-up (IUP3 typ. 2 mA). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | GN Semic |+| Package | SOP-16 |+| Category | LED-drv |+| Pins | 16 |++## Ordering variants++- `GN1650`+- `GN1650D`++## CAD (KiCad official)++- Symbol: `GN1650`+- 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/gn1650-datasheet.pdf) (11 pp, sha256 `99e92c85db4cfe63`, 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/gn1650-datasheet.pdf)

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