New „hardwired“ TCP/IP chip from company Wiznet resists attacks, it´s fast and consumes only a minimum energy and host MCU resources.
This is an archive article published 10/29/2014. Some information may no longer be up to date and in line with the current state. Please contact us in case of interest.
TCP/IP solutions from company Wiznet are known by its resistance resulting already from their principle . all the solution is hardware-based, thus it´s not possible to change a basic functionality of a device (flooding, spoofing, ...). W5500 outstands by its “modesty” - it only requires a few GPIO pins of a host MCU – thanks to a high speed SPI interface (up to 80 MHz) and it also has a very low power consumption. A result of a small consumption is, that the chip heats up to approx. 40´C at a common operation, in contrast to other similar chips, which usually have 60-70´C at operation. This naturally means a higher reliability, possibility of a more dense placing of components and elimination of problems with overheating of a device built-in into a small enclosure.
Energy saving is also enhanced by Power Down and Wake-on-LAN (over UDP) modes. Single 3,3V are enough for power supply, while inputs are 5V tolerant. Status is indicated on LED outputs (full/half duplex, link speed, active) and the chip contains a built-in OS Linux (kernel 2.4.xx, 2.6.xx, 3.1,xx) & RTOS driver.
High Speed Serial Peripheral Interface(SPI MODE 0, 3)
internal memory 32Kb for TX/RX buffer
10BaseT/100BaseTX Ethernet PHY embedded
3.3V pwr supply, I/O signals pins 5V tolerant
LED outputs (Full/Half duplex, Link, Speed, Active)
48 Pin LQFP (7x7mm, 0.5mm pitch)
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Win the WIZ550S2E module for free!
Competition with the following question has been published here:
What´s the typical supply current of the W5500 chip at ordinary operation?
The correct answer was: 132 mA
We have drawn the following winners:
Kamil Jirka [CZ]
Miroslav Čakan [SK]
Attila Németh [HU]
Congratulations to winners. We´ll inform them by e-mail.
Date of publishing 10/29/2014. When you issue article on your website, please give its source: https://www.soselectronic.com/articles/wiznet/wiznet-w5500-will-resist-hackers-attack-and-save-energy-1617
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