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Contents

README

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Q418025510002

Seiko Epson · Real-time Clocks (RTC) · SOP-14-208mil

Q418025510002 from Seiko Epson, in a SOP-14-208mil. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 N.C. unconnected No connection.
2 SCL input Serial clock input pin for the I2C-Bus interface (up to 400 kHz).
3 FOUT output 32.768 kHz C-MOS clock output with output control by the FOE pin and /CLEN1, /CLEN2 bits; output is OFF (LOW) when FOE is low.
4 N.C. unconnected No connection.
5 TEST unconnected Used by the manufacturer for testing; do not connect externally.
6 VDD power_in Connected to the positive power supply; operating range 1.7 V to 5.5 V (3.0 V typ.).
7 FOE input FOUT output enable input that, together with the /CLEN1 and /CLEN2 bits, controls the 32.768 kHz output on FOUT.
8 N.C. unconnected No connection.
9 N.C. unconnected No connection.
10 /INTA output Interrupt output A pin (N-ch open drain).
11 GND power_in Connected to ground.
12 /INTB output Interrupt output B pin (N-ch open drain).
13 SDA bidirectional Bi-directional data input and output pin for the I2C-Bus interface.
14 N.C. unconnected No connection.

Key specifications

Parameter Value
Manufacturer Seiko Epson
Package SOP-14-208mil
Category Clock and Timing
Pins 14

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Frequency tolerance (AC) ∆f/f -5 0 5 ×10^-6 Ta = +25 °C, VDD = 3.0 V 1
Frequency voltage characteristics f/V -1 1 ×10^-6 Ta = +25 °C, VDD = 2.0 V to 5.5 V 1
Oscillation start-up time tSTA 1 s Ta = +25 °C, VDD = 2.0 V 1
Current consumption (backup), VDD = 5 V IBK 0.6 1.8 µA fSCL = 0Hz, FOE = GND, FOUT output OFF(LOW), VDD = 5 V, Ta = -40 °C to +85 °C 1
Current consumption (backup), VDD = 3 V IBK 0.48 1.2 µA fSCL = 0Hz, FOE = GND, FOUT output OFF(LOW), VDD = 3 V, Ta = -40 °C to +85 °C 1
Current consumption (FOUT on) I32k 3 6.5 µA fSCL = 0Hz, VDD, FOE = 5.5 V, FOUT output ON (Output=OPEN; CL = 0 pF), Ta = -40 °C to +85 °C 1
Power supply detection voltage, high-voltage mode VDETH 1.9 2.1 2.3 V VDD pin, Ta = -30 °C to +70 °C 1
Power supply detection voltage, low-voltage mode VDETL 1.15 1.3 1.45 V VDD pin, Ta = -30 °C to +70 °C 1
Power voltage VDD 1.7 3 5.5 V 1
Clock voltage VCLK 1.15 3 5.5 V 1
Operating temperature TOPR -40 25 85 °C 1

CAD (KiCad official)

  • Symbol: Q418025510002
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOP-14-208mil (KiCad packages3D, STEP)
  • 3D model files: q418025510002-etched.step / q418025510002-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); q418025510002.step / q418025510002.glb are the bare package body.

Provenance

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

  • Datasheet: Seiko Epson datasheet (2 pp, sha256 3f3cb80851bc1df4, retrieved 2026-10-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (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