# X1G0056010017

**Seiko Epson** · Programmable Oscillators · SMD2520-4P

X1G0056010017 from Seiko Epson, 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 | OE / ST | input | Output enable (OE): high gives the specified frequency output at OUT, low forces OUT low with a weak pull-down and disables only the output driver; in the standby (ST) ordering variant, low puts the device in standby with OUT low (weak pull-down) and supply current reduced to I_std, and high gives the specified output. |
| 2 | GND | power_in | Power ground; the 0.1 µF VCC-to-GND decoupling capacitor should be placed as close to the device as possible for optimum jitter. |
| 3 | OUT | output | CMOS clock output with a maximum load of 15 pF (L_CMOS) and a frequency range of 0.67 MHz to 170 MHz. |
| 4 | VCC | power_in | Power supply input; the rated supply range is 1.62 V to 3.63 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Seiko Epson |
| 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 |
|---|---|---|---|---|---|---|---|
| Output frequency range | fO | 0.67 |  | 170 | MHz |  | 1 |
| Frequency tolerance (J) | f_tol | -50 |  | 50 | × 10-6 | T_use = -40 ºC ~ +105 ºC | 1 |
| Storage temperature | T_stg | -40 |  | 125 | ºC | Storage as single product. | 1 |
| Operating temperature | T_use | -40 |  | 105 | ºC |  | 1 |
| Supply voltage (family range) | VCC | 1.62 |  | 3.63 | V |  | 1 |
| Symmetry | SYM | 45 |  | 55 | % | 50 % VCC Level | 1 |
| Output voltage high (DC characteristics) | VOH | 90 |  |  | % VCC | IOH/IOL Conditions [mA] | 1 |
| Output voltage low (DC characteristics) | VOL |  |  | 10 | % VCC |  | 1 |
| Output load condition | L_CMOS |  |  | 15 | pF |  | 1 |
| Input voltage high (OE or ST) | VIH | 70 |  |  | % VCC | OE or ST | 1 |
| Input voltage low (OE or ST) | VIL |  |  | 30 | % VCC | OE or ST | 1 |
| Disable time | t_stp |  |  | 1 | μs | Measured from the time OE or ST pin crosses 30 % VCC | 1 |
| Enable time | t_sta |  |  | 1 | μs | Measured from the time OE pin crosses 70 % VCC | 1 |
| Resume time | t_res |  |  | 3 | ms | Measured from the time ST pin crosses 70 % VCC | 1 |
| Start-up time | t_str |  |  | 3 | ms | Measured from the time VCC reaches its rated minimum value, 1.62 V | 1 |
| ESD breakdown voltage (HBM) |  |  |  | 2000 | V | Human Body Model (HBM) | 6 |
| ESD breakdown voltage (MM) |  |  |  | 250 | V | Machine Model (MM) | 6 |
| ESD breakdown voltage (CDM) |  |  |  | 750 | V | Charged Device Model (CDM) | 6 |

## CAD (KiCad official)

- Symbol: `X1G0056010017`
- Footprint: `Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm`
- 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files: `x1g0056010017-etched.step` / `x1g0056010017-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `x1g0056010017.step` / `x1g0056010017.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Seiko Epson datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588933967533232128) (8 pp, sha256 `7b1c7f86535276fb`, retrieved 2026-10-15, 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](docs/x1g0056010017-datasheet.pdf)