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X1B000242000100

Public Made by Adom

by adom

Seiko Epson Real Time Clocks, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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X1B000242000100

Seiko Epson · Real Time Clocks · SOP-8

X1B000242000100 from Seiko Epson, in a SOP-8. 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 Not connected; the datasheet gives no function for this pin.
2 N.C. unconnected Not connected; the datasheet gives no function for this pin.
3 /IRQ2 output Outputs interrupt signals ('L' level) for timer and FOUT as a C-MOS output.
4 GND power_in Ground connection for the device.
5 SDA bidirectional Data input/output pin for serial data transfer on the I2C-Bus (400 kHz).
6 SCL input Shift clock input pin for serial data transmission.
7 /IRQ1 output Outputs interrupt signals ('L' level) for alarm, timer, time update and 32.768kHz; N-channel open-drain output.
8 VDD power_in Power-supply pin; the recommended operating power voltage is 1.6 V to 5.5 V (typ. 3.0 V).

Key specifications

Parameter Value
Manufacturer Seiko Epson
Package SOP-8
Category Clock/Timing
Pins 8

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Current consumption (input pins L, fCLK = 0 Hz, /IRQ1,2 OFF, TSEL2="1") at VDD = 5 V IBK 350 nA Ta = -40 °C to +85 °C; input pins "L"; fCLK = 0 Hz; /IRQ1,2 = OFF; TSEL2="1"; VDD = 5 V 1
Current consumption (input pins L, fCLK = 0 Hz, /IRQ1,2 OFF, TSEL2="1") at VDD = 3 V IBK 160 320 nA Ta = -40 °C to +85 °C; input pins "L"; fCLK = 0 Hz; /IRQ1,2 = OFF; TSEL2="1"; VDD = 3 V 1
Current consumption (fCLK = 0 Hz, /IRQ1: 32.768 kHz ON, /IRQ2 OFF) at VDD = 5 V I32k 0.6 1.1 µA Ta = -40 °C to +85 °C; fCLK = 0 Hz; /IRQ1: 32.768 kHz ON; /IRQ2: OFF; VDD = 5 V 1
Current consumption (fCLK = 0 Hz, /IRQ1: 32.768 kHz ON, /IRQ2 OFF) at VDD = 3 V I32k 0.52 0.9 µA Ta = -40 °C to +85 °C; fCLK = 0 Hz; /IRQ1: 32.768 kHz ON; /IRQ2: OFF; VDD = 3 V 1
Frequency tolerance (grade B) Δf/f -23 23 × 10−6 Ta = +25 °C; VDD = 3.0 V 1
Oscillation start-up time tSTA 1 s Ta = +25 °C; VDD = 1.6 V to 5.5 V 1
Oscillation start-up time tSTA 3 s Ta = -40 °C to +85 °C; VDD = 1.6 V to 5.5 V 1
Power voltage (operating voltage range) VDD 1.6 3 5.5 V 1
Clock voltage (time-keeping voltage range) VCLK 1.1 3 5.5 V 1
Operating temperature TOPR -40 25 85 °C 1

CAD (KiCad official)

  • Symbol: X1B000242000100
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOP-8 (KiCad packages3D, STEP)
  • 3D model files: x1b000242000100-etched.step / x1b000242000100-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); x1b000242000100.step / x1b000242000100.glb are the bare package body.

Provenance

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

  • Datasheet: Seiko Epson datasheet (2 pp, sha256 3d24b8863b99071e, retrieved 2026-10-19, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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