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Contents

README

markdown

DS1307CDRG

HANSCHIP semiconductor · Real Time Clocks · SOP-8

DS1307CDRG from HANSCHIP semiconductor, 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 X1 passive 32.768 kHz crystal oscillator input pin with 12.5pF load capacitance, or external oscillator input.
2 X2 passive 32.768 kHz crystal oscillator output pin with 12.5pF load capacitance, or left floating for external oscillator.
3 VBAT power_in +3V battery input, 2.0V to 3.5V operating range, supports 48mAhr+ lithium battery for over ten years at 25°C without main power.
4 GND power_in Ground/common connection.
5 SDA bidirectional Serial data input/output for I2C interface, open-drain output requiring external pull-up resistor.
6 SCL input Serial clock input for I2C interface, open-drain output with pull-up resistor.
7 SQW/OUT output Square wave output driver at 1Hz, 4.096kHz, 8.192kHz or 32.768kHz, open-drain requiring external pull-up resistor.
8 VCC power_in +5V power supply input pin with 4.5V to 5.5V operating range.

Key specifications

Parameter Value
Manufacturer HANSCHIP semiconductor
Package SOP-8
Category Clock/Timing
Pins 8

CAD (KiCad official)

  • Symbol: DS1307CDRG
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: ds1307cdrg-etched.step / ds1307cdrg-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ds1307cdrg.step / ds1307cdrg.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HANSCHIP semiconductor datasheet (15 pp, sha256 db9c8e274d96c9a3, retrieved 2026-09-17, 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: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-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).

Datasheet PDF