# ECS-3225MVLC-250-CN-TR

**ECS** · Crystal Oscillators · SMD3225-4P

ECS-3225MVLC-250-CN-TR from ECS, in a SMD3225-4P. 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 | Tri-state | input | Output enable/standby control: ≥0.7*Vdd or NC gives active output, ≤0.3*Vdd gives high impedance output; standby current 10 µA max, enable/disable time 150 µs max. |
| 2 | Gnd | power_in | Ground connection for the oscillator. |
| 3 | Output | output | CMOS clock output driving up to 15 pF load, with VOL 10% Vdd max and VOH 90% Vdd min, high impedance when pin 1 is low. |
| 4 | Vdd | power_in | Supply voltage pin, 1.6 V min to 3.6 V max (MultiVolt). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ECS |
| Package | SMD3225-4P |
| 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 |
|---|---|---|---|---|---|---|---|
| Frequency Stability (CN option) |  | -25 |  | 25 | ppm | -40 ~ +85°C (CN Opt); includes initial tolerance, temperature, supply voltage, load change and reflow | 1 |
| Supply Voltage | Vdd | 1.6 |  | 3.6 | V |  | 1 |
| Operating Temperature |  | -40 |  | 85 | °C |  | 1 |
| Storage Temperature |  | -55 |  | 125 | °C |  | 1 |
| Rise & Fall time |  |  |  | 7 | ns | 10% Vdd, 90% Vdd | 1 |
| Start Up Time |  |  |  | 5 | mS | @ 90% Vdd | 1 |
| Enable/Disable Time |  |  |  | 150 | µs |  | 1 |
| Phase Jitter |  |  |  | 150 | fS | 12 kHz to 20 MHz, F=50 MHz | 1 |
| Standby Current |  |  |  | 10 | µA |  | 1 |
| Frequency Aging |  | -3 |  | 3 | ppm | @ +25°C, 1st Year | 1 |
| Duty Cycle |  | 45 |  | 55 | % | @ ½ Vdd | 1 |
| Output Load |  |  |  | 15 | pF | CMOS | 1 |
| Output Frequency |  |  | 25 |  | MHz | 250 = 25.000 MHz per part numbering | 1 |
| Output Voltage Low | VOL |  |  | 10 | % Vdd | VOL: 10% Vdd max. | 1 |
| Output Voltage High | VOH | 90 |  |  | % Vdd | VOH: 90% Vdd min. | 1 |
| Frequency Range (series) |  | 1 |  | 75 | MHz |  | 1 |

## Materials and finish

As the datasheet states them (page.json `metadata.appearance`; the 3D model's colours follow it).

| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts |  | gold | MSL 1, Lead Finish Au Application / Temperature Time T1 / t1 T2 / t2 | 2 |

## CAD (KiCad official)

- Symbol: `ECS-3225MVLC-250-CN-TR`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `ecs-3225mvlc-250-cn-tr-etched.step` / `ecs-3225mvlc-250-cn-tr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ecs-3225mvlc-250-cn-tr.step` / `ecs-3225mvlc-250-cn-tr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ECS datasheet](docs/ecs-3225mvlc-250-cn-tr-datasheet.pdf) (4 pp, sha256 `aa69f36c1de4c570`, retrieved 2026-10-30, 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/ecs-3225mvlc-250-cn-tr-datasheet.pdf)