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Contents

README

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SCEYR12X0000018VRM

SST · Crystal Oscillators · SMD2520-4P

SCEYR12X0000018VRM from SST, in a SMD2520-4P. 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 INHB input Output state control (tri-state enable): 'H' or open selects normal oscillator output, while 'L' puts QOUT in tri-state (high impedance); this pin must not be grounded, otherwise the oscillator is high impedance.
2 VSS power_in Ground (地) reference pin for the oscillator supply.
3 QOUT output Oscillator output at 12.000 MHz, 15 pF HCMOS/TTL compatible load, with rise/fall time of 8 ns max. and duty cycle of 40%-60%; high impedance when INHB is low.
4 VDD power_in Supply voltage pin, rated 3.3 V ±10% or 1.8 V ±10% per the operating voltage specification.

Key specifications

Parameter Value
Manufacturer SST
Package SMD2520-4P
Category Crystals, Oscillators, Resonators
Pins 4

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
频率稳定度 (frequency stability) -20 20 ppm 2
年老化 (annual aging) -5 5 ppm 2
室温频差最大允许变化 (max allowed room-temp frequency change) -10 10 ×10^-6 after vibration, climatic sequence, damp heat, aging and drop tests 5
占空比 (duty cycle) 40 60 % 2
输入电流 (input current) 10 mA 2
上升/下降沿时间 (rise/fall time) 8 ns 2
起振时间 (startup time) 5 ns 2
输出低电平 (output low level) 0.4 V TTL 2
输出低电平 (output low level) 10 %VDD HCMOS 2
输出高电平 (output high level) 2.4 V TTL 2
输出高电平 (output high level) 90 %VDD HCMOS 2
工作电压 3.3V 选项 (operating voltage, 3.3V option) tolerance VDD -10 10 % 3.3V ±10% option 2
工作电压 1.8V 选项 (operating voltage, 1.8V option) tolerance VDD -10 10 % 1.8V ±10% option 2
工作温度 (operating temperature) -40 85 ℃ 2
贮藏温度 (storage temperature) -40 85 ℃ 2
标称频率 (nominal frequency) 12 MHz 2
工作电压 3.3V 选项 (operating voltage, 3.3V option) VDD 3.3 V 3.3V ±10% option 2
工作电压 1.8V 选项 (operating voltage, 1.8V option) VDD 1.8 V 1.8V ±10% option 2
输出负载 (output load) CL 15 pF HCMOS/TTL compatible load 2

CAD (KiCad official)

  • Symbol: SCEYR12X0000018VRM
  • Footprint: Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm
  • 3D model: SMD2520-4P (KiCad packages3D, STEP)
  • 3D model files: sceyr12x0000018vrm-etched.step / sceyr12x0000018vrm-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sceyr12x0000018vrm.step / sceyr12x0000018vrm.glb are the bare package body.

Provenance

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

  • Datasheet: SST datasheet (5 pp, sha256 424ee9b442001365, retrieved 2026-10-16, 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 0.3, 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