component
HG1302MM
Public Made by Adomby adom
HGSEMI Real Time Clocks, MSOP-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
markdownHG1302MM
HGSEMI · Real Time Clocks · MSOP-8
HG1302MM from HGSEMI, in a MSOP-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 | Main power supply for clock operation and data processing, operates from 2.0V to 5.5V. |
| 2 | X1 | passive | 32.768kHz crystal oscillator input terminal with recommended load capacitance of 6pF. |
| 3 | X2 | passive | 32.768kHz crystal oscillator input terminal with recommended load capacitance of 6pF. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | RST | input | Reset input, active high; initializes data transfer and must be held low at power-up until VCC ≥ 2.5V; SCLK must be low when driving RST high. |
| 6 | I/O | bidirectional | Serial data input/output for reading and writing clock and RAM data; enters high-impedance state when RST is low or on each SCLK rising edge during output. |
| 7 | SCLK | input | Serial clock input for synchronizing data transfer; data is latched on rising edge and output on falling edge; must be low when RST transitions to high. |
| 8 | VCC1 | power_in | Backup power supply for low-power operation and time retention; supplies device when main power is absent or lower than VCC2. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | MSOP-8 |
| Category | Clock/Timing |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
HG1302MM - Footprint:
Package_SO:MSOP-8_3x3mm_P0.65mm - 3D model: MSOP-8 (KiCad packages3D, STEP)
- 3D model files:
hg1302mm-etched.step/hg1302mm-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);hg1302mm.step/hg1302mm.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (14 pp, sha256
313dc8a655711ee6, retrieved 2026-09-21, 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).