---
title: "WIZ750SR-TTL vs WIZ107SR-TTL"
url: "https://maker.wiznet.io/forum/12896"
markdown_url: "https://maker.wiznet.io/forum/12896/md"
type: "Forum topic"
category: "Serial-to-Ethernet & ConfigTool"
author: "kslam1980"
created: "2018-05-15T13:54:37+09:00"
last_activity: "2018-05-17T04:36:37+09:00"
language: "en"
views: 951
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# WIZ750SR-TTL vs WIZ107SR-TTL

## Question

Asked by kslam1980 on 2018-05-15 in Serial-to-Ethernet & ConfigTool.

Hi,

What is the difference between the WIZ750SR-TTL as compared to WIZ107SR-TTL?
Currently, I’m using the WIZ107SR-TTL, i wonder can i directly switch to use the WIZ750SR-TTL? Is this modules compatible with each other?

Thanks & Regards,
KS Lam

## Replies

### Reply 1 by rena, 2018-05-17

Hi, [@kslam1980](https://maker.wiznet.io/u/kslam1980).

**WIZ750SR is a replacement for WIZ107SR and is compatible.**

Some of the differences are:

- MCU spec
  WIZ750SR is based on Cortex-M0 and WIZ107SR is based on 8051 MCU.

- Some Pinout function

[![WIZ107-750SR](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/8/803d43437d4a7af909ae90ae547b3c0820633378.jpg) WIZ107-750SR1116×834 505 KB](https://maker.wiznet.io/forum_uploads/wiznet/original/2X/8/803d43437d4a7af909ae90ae547b3c0820633378.jpg)

- Operation Temperature (℃)
  WIZ750SR: Commercial (0~70)
  WIZ107SR: Industrial (-40~85) for **H/W revision v1.3 or later.**

- WIZ750SR has expansion GPIO

For more details, please refer to the WIZWiki and WIZnet official website.

- [WIZ107SR product page](http://www.wiznet.io/product-item/wiz107sr/)

- [WIZ750SR Wiki page](http://wizwiki.net/wiki/doku.php?id=products:wiz750sr:datasheet:start)

---

Source: https://maker.wiznet.io/forum/12896