---
title: "W5500 crystal specification"
url: "https://maker.wiznet.io/forum/11817"
markdown_url: "https://maker.wiznet.io/forum/11817/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "Tobias89"
created: "2016-04-26T08:03:40+09:00"
last_activity: "2017-05-04T08:38:43+09:00"
language: "en"
views: 1368
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# W5500 crystal specification

## Question

Asked by Tobias89 on 2016-04-26 in Ethernet Chips.

Hello,

I am integrating W5500 on one of our modules and I have a question about crystal specification in datasheet. The drive level is specified in uW/MHz, instead of uW.

[![](https://maker.wiznet.io/forum_uploads/wiznet/original/1X/6f67d8e39d08d64968e058fbd4bc43940fcb7699.png) 1920×1040 97.7 KB](https://maker.wiznet.io/forum_uploads/wiznet/original/1X/6f67d8e39d08d64968e058fbd4bc43940fcb7699.png)

Is that a mistake, or is drive level really 59.12 x 25 MHz? Or is it something else?

I appreciate any help!

## Replies

### Reply 1 by Edward, 2016-04-27

Hi.

It is just power consumption.

driving 25Mhz, and max power consumption is 59.12uW.

This power consumption should not exceed 59.12uW

refer to below 2 datasheet.

1. [murata.com/products/timingde … drivelevel](http://www.murata.com/products/timingdevice/crystalu/basic/drivelevel)

2. file:///C:/Users/Administrator/Downloads/IDT_AN830_APN_20140505%20(1).pdf

Thank you

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Source: https://maker.wiznet.io/forum/11817