2021/11/23 14:12

3/6

WIZ850io

Pin No. Pin Type Pin Name Description

J2

1

P

GND

Ground

2

P

3.3V

Power : 3.3V power supply

3

P

3.3V

Power : 3.3V power supply

4

-

NC

Not Connect

5

I

RSTn

Reset : Low activity

Hold at least 500us after asserted to LOW and keep HIGH until next Reset

needed.

6

O

MISO

SPI Master In Slave Out

This pin is used for SPI MISO signal pin

User need to wait for 50ms after this pin is changed to HIGH to communicate with WIZ850io. (Refer to 5. Timing

Diagram)

Characteristic

DC Charcteristic

Symbol

Parameter

Pins Min Typ Max Unit

VDD

Supply voltage

3.3V 2.97 3.3 3.63 V

VIL

High level input voltage ALL 2.0

5.5

V

VIH

Low level input voltage ALL -0.3

0.8

V

VOL

Low level output voltage ALL

0.4

V

VOH High level output voltage ALL 2.4

V

LOL

Low level output Current ALL 8.6 13.9 18.9 mA

LOH High level output Current ALL 12.5 26.9 47.1 mA

IDD

Supply Current

(Normal operation mode)

3.3V

132

mA

LOH

Supply Current

(Power Down mode)

3.3V

13

mA

Power Dissipation

Condition

Min Typ Max Unit

100M Link

- 128

-

mA

10M Link

-

75

-

mA

Un-Link (Auto-negotiation mode) -

65

-

mA

100M Transmitting

- 132

-

mA

10M Transmitting

-

79

-

mA

Power Down mode

-

13

-

mA

SPI Operations

As WIZ850io consists of W5500 and others, SPI operation of WIZ850io follows one of W5500. For more

information about SPI operation of WIZ850io, please refer to W5500 Datasheet.