# ASEM1-25.000MHZ-LC-T

**Abracon LLC** · Oscillators · SMD3225-4P

ASEM1-25.000MHZ-LC-T from Abracon LLC, 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 | Standby | input | Tri-state control: logic 1 (VIH ≥ 0.75*Vdd) or open gives oscillation, logic 0 (VIL < 0.25*Vdd) gives Hi-Z output with stand-by current max 15 uA. |
| 2 | GND | power_in | Ground; a bypass capacitor of approximately 0.01uF is recommended between pin 2 and pin 4. |
| 3 | Output | output | Clock output, VOH min 0.8*Vdd and VOL max 0.2*Vdd with 15pF load, high impedance when standby is low. |
| 4 | VDD | power_in | Supply voltage pin, 3.3V ±0.3V for the -1 option (absolute maximum -0.3 to +4.0 V), with approximately 0.01uF bypass capacitor to pin 2. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Abracon LLC |
| Package | SMD3225-4P |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply Voltage tolerance (ordering code 1) | Vdd | -0.3 | 3.3 | 0.3 | V | Option 1: 3.3 ± 0.3V; nominal 3.3V | 2 |
| Operating Temperature |  | -40 |  | 85 | °C | Option L / LC: -40°C to +85°C | 2 |
| Overall Frequency Stability |  | -50 |  | 50 | ppm | Option LC: ±50 ppm over -40°C to +85°C | 2 |
| Frequency Range |  | 1 |  | 150 | MHz |  | 1 |
| Supply Current (no load) |  |  | 7 | 15 | mA | no load; 1.0 to 39.9999MHz | 1 |
| Output Load resistance |  | 10 |  |  | kΩ | See options | 1 |
| Output Load capacitance |  |  |  | 15 | pF | See options | 1 |
| Rise Time | Tr |  | 1.3 | 3 | ns | 15pF; T=25°C | 1 |
| Fall Time | Tf |  | 1.3 | 3 | ns | 20%/80%*VDD | 1 |
| Disable Time |  |  | 20 | 100 | ns |  | 1 |
| Disable Stand-by Current |  |  |  | 15 | uA |  | 1 |
| Aging (first year) |  | -0.5 |  | 0.5 | ppm | First year | 1 |
| Storage Temperature |  | -55 |  | 150 | °C |  | 1 |
| Supply Voltage |  | -0.3 |  | 4 | V |  | 1 |
| Input Voltage |  | -0.3 |  |  | V |  | 1 |
| Junction Temperature |  |  |  | 150 | °C |  | 1 |
| Soldering Temperature |  |  |  | 260 | °C | 40 sec max | 1 |
| ESD HBM | HBM |  |  | 2000 | V |  | 1 |
| ESD MM | MM |  |  | 200 | V |  | 1 |
| ESD CDM | CDM |  |  | 500 | V |  | 1 |
| Cycle to Cycle Jitter |  |  | 60 |  | ps | F=100MHz | 1 |

## CAD (KiCad official)

- Symbol: `ASEM1-25.000MHZ-LC-T`
- Footprint: `Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm`
- 3D model: SMD3225-4P (KiCad packages3D, STEP)
- 3D model files: `asem1-25-000mhz-lc-t-etched.step` / `asem1-25-000mhz-lc-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `asem1-25-000mhz-lc-t.step` / `asem1-25-000mhz-lc-t.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Abracon LLC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589794172946583552) (3 pp, sha256 `b3aa052242ca964e`, retrieved 2026-10-21, tier: lcsc)
- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/asem1-25-000mhz-lc-t-datasheet.pdf)