component
GN1303
Public Made by Adomby adom
GN Semic Real Time Clocks, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownGN1303
GN Semic · Real Time Clocks · SOP-8
GN1303 from GN Semic, in a SOP-8. 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 | Vcc2 | power_in | Primary power supply pin in dual-supply configuration; operates on the higher of VCC1 and VCC2, receiving power when 0.2V higher than VCC1, maintaining time and date data during main power loss. |
| 2 | X1 | input | Crystal oscillator input, designed for 32.768kHz quartz crystal with specified 6pF load capacitance. |
| 3 | X2 | output | Crystal oscillator output; floats when using external 32.768kHz oscillator as alternative configuration. |
| 4 | GND | power_in | Power ground reference. |
| 5 | CE | input | Chip enable input, must remain high during read/write operations; 40kΩ typical pull-down resistor to ground. |
| 6 | I/O | bidirectional | Bidirectional data input/output on three-wire serial interface; 40kΩ typical pull-down resistor to ground. |
| 7 | SCLK | input | Serial clock input for synchronizing data actions on three-wire serial interface; 40kΩ typical pull-down resistor to ground. |
| 8 | Vcc1 | power_in | Low-power primary or backup power supply pin; connects to rechargeable energy source in trickle-charge systems, with UL certification for lithium battery reverse-charge protection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | GN Semic |
| Package | SOP-8 |
| Category | Clock/Timing |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
GN1303 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
gn1303-etched.step/gn1303-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);gn1303.step/gn1303.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: GN Semic datasheet (14 pp, sha256
50bcdf2949e09f5b, retrieved 2026-09-18, 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: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-4-6(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).