# 8W25000027

**TXC Corp** · Oscillators · SMD2520-4P

8W25000027 from TXC Corp, 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 | input | Enable/disable pad: high (or open) gives normal oscillator output, low puts output at high impedance and stops oscillation; VIH min 70%Vdd, VIL max 30%Vdd. |
| 2 | GND | power_in | Ground connection. |
| 3 | OUT | output | CMOS clock output driving up to 15 pF load, high impedance when OE is low. |
| 4 | VDD | power_in | Supply voltage of 1.8, 2.5 or 3.3 V (±10%). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TXC Corp |
| Package | SMD2520-4P |
| Category | Crystal Oscillator/Oscillator/Resonator |
| 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 |
|---|---|---|---|---|---|---|---|
| Frequency Tolerance | FT | -25 |  | 25 | ppm | @ -40~85℃, Note 1 | 1 |
| Frequency Tolerance | FT | -50 |  | 50 | ppm | @ -40~105℃, Note 1 | 1 |
| Supply Voltage tolerance | Vdd | -10 |  | 10 | % | Vdd 1.8, 2.5, 3.3 V | 1 |
| Operating Temperature | Topr | -40 | 25 | 105 | ℃ |  | 1 |
| Current Consumption | Icc |  |  | 25 | mA |  | 1 |
| Standby Current | Icc(ST) |  |  | 10 | uA | OE = Low | 1 |
| Output Voltage High | VoH | 90 |  |  | %Vdd | Vdd @ 2.5 or 3.3 V | 1 |
| Output Voltage Low | VoL |  |  | 10 | %Vdd | Vdd @ 2.5 or 3.3 V | 1 |
| Output Voltage Low | VoL |  |  | 0.4 | V | Vdd @ 1.8 V | 1 |
| Rise Time | Tr |  |  | 5 | ns | 10% → 90% Vdd Level | 1 |
| Rise Time | Tr |  |  | 4 | ns | 20% → 80% Vdd Level | 1 |
| Fall Time | Tf |  |  | 5 | ns | 90% → 10% Vdd Level | 1 |
| Fall Time | Tf |  |  | 4 | ns | 80% → 20% Vdd Level | 1 |
| Symmetry (Duty ratio) | TH/T | 45 |  | 55 | % |  | 1 |
| Start-up Time | Tosc |  |  | 10 | ms | To 90% of Final Amplitude | 2 |
| Output Disable Delay Time | T off |  |  | 250 | us |  | 2 |
| Output Enable Delay Time | T on |  |  | 300 | us |  | 2 |
| Enable Voltage High | VIH | 70 |  |  | %Vdd |  | 2 |
| Disable Voltage Low | VIL |  |  | 30 | %Vdd |  | 2 |
| Aging |  | -3 |  | 3 | ppm/yr. | 1st. Year at 25℃ | 2 |
| RMS Phase Jitter | PJ |  |  | 1 | ps | Fout range 10MHz~40MHz, integrated 12KHz~5MHz | 2 |
| Nominal Frequency | F | 1 |  | 156.25 | MHz | @ 2.5 V, 3.3 V | 1 |
| Nominal Frequency | F | 1 |  | 125 | MHz | @ 1.8 V | 1 |
| Output Load | CL |  | 15 |  | pF | CMOS | 1 |

## CAD (KiCad official)

- Symbol: `8W25000027`
- Footprint: `Crystal:Crystal_SMD_2520-4Pin_2.5x2.0mm`
- 3D model: SMD2520-4P (KiCad packages3D, STEP)
- 3D model files: `8w25000027-etched.step` / `8w25000027-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `8w25000027.step` / `8w25000027.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [TXC Corp datasheet](docs/8w25000027-datasheet.pdf) (3 pp, sha256 `62f43610d83225d5`, 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](docs/8w25000027-datasheet.pdf)