I2C to GPIO IO Expander Controller CH423S SOP28

SKU: D25-2
In Stock
EGP 60.000
In Stock

Brand:Chinese

Description

I2C to GPIO IO Expander Controller CH423S SOP28

Overview

The CH423 is a universal remote I/O expansion chip with a two-wire serial interface. CH423 provides 8 bidirectional input and output pins and 16 general-purpose output pins to support input level change interrupt. CH423 built-in current drive circuit can statically drive 24 LED tubes or dynamically drive 128 LEDs (equivalent to 16 digital) Tube); CH423 exchanges data with a single-chip microcomputer through a 2-wire serial interface.

Features

  • 8 general-purpose input and output pins GPIO and 16 general-purpose output pin GPOs are remotely extended through a two-wire serial interface.
  • Built-in current drive stage, continuous drive current is not less than 15mA, OC pin output 1/16 pulse sink current is not less than 120mA.
  • The static display drive mode supports 24 LEDs or 3 LEDs.
  • The time-sharing dynamic scanning display drive mode supports 128 LEDs or 16-bit common cathode digital tubes, and supports brightness control.
  • The bidirectional I/O pin has an interrupt function when the input level changes in the input mode, and the interrupt output is active low.
  • The 16 general-purpose output pins can be selected for push-pull output or open-drain output.
  • Supports 3V ~ 5V power supply voltage, supports low-power sleep, can be awakened by input level changes.
  • High-speed 2-wire serial interface with clock speeds from 0 to 1MHz, compatible with two-wire I2C bus, saving pins.
  • Available in DIP28S and SOP28 lead-free packages, compatible with RoHS.

Based on low cost chip CH423. You can replace with similar chips like PCF23017, PCF8574, etc

  • 8 Bidirectional IO  ports IO0-IO7
  • 16 Output-only IO ports: OC0 – OC15
  • 3-5V power supply, compatible I2C interface

More chip features please see the chip page here.

Additional information

Weight 0.0051 kg

Brand

Chinese

Chinese
Chinese

Reviews

There are no reviews yet.

Be the first to review “I2C to GPIO IO Expander Controller CH423S SOP28”

Refund Policy for UGE Electronics “Https://uge-one.com “

 

1. Returns and Refunds

Thank you for shopping at UGE Electronics “Https://uge-one.com “. If you are not entirely satisfied with your purchase, we’re here to help.

 

2. Eligibility for Refund

To be eligible for a refund, please make sure that:

– The item was purchased in the last 14 days.

– The item is in the original packaging.

– The item isn’t used or damaged.

 

3. How to Initiate a Refund

To initiate a refund, please contact our customer support at [[email protected]] or [01066552125]. Provide your order number and details about the product you would like to return.

 

4. Refund Processing Time

Once we receive your item, we will inspect it and notify you that we have received your returned item. We will immediately notify you on the status of your refund after inspecting the item.

If your return is approved, we will initiate a refund to your credit card (or original method of payment). You will receive the credit within a certain amount of days, depending on your card issuer’s policies.

 

5. Shipping Costs

Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.

 

6. Exchanges

If you wish to exchange an item, please contact our customer support. You will be responsible for the return shipping costs, and we will cover the shipping costs of the replacement item.

 

7. Damaged or Defective Items

If you received a damaged or defective product, please contact us immediately for assistance. We will work with you to resolve the issue promptly.

 

8. Contact Information

If you have any questions about our Refund Policy, please contact us at [[email protected]].

 

Important Note: This Return & Refund Policy is applied only for Orders invoiced VIA UGE Electronics, and regarding any Orders has been invoiced VIA any Other Vendor you can check the Return & Refund Policy of this Vendor VIA the Vendor Stroe Page, and it’s not our responsibility for any issue between you and the Vendor.

Product Enquiry

Please Login to make enquiry about this product