Products > Integrated Circuits (ICs) > Communication & Networking ICs > HC55185ECMZ

Images are for reference only.


Telecom Line Management ICs 75V RINGING SLIC W/PROG OUTPUT CUR

Manufacturer : Intersil Corporation (Renesas Electronics)
Package/Case : PLCC-28
Product Categories : Telecom Line Management ICs
Datasheet: HC55185ECMZ Datasheet (PDF)
RoHs Status: Rohs
In-stock: 232


Request for Quotation

Warm Tips: Please fill out the below form and we will contact you as soon as possible.

HC55185ECMZ Product Details

The RSLIC-VoIP family of ringing subscriber line interface circuits (RSLIC) supports analog Plain Old Telephone Service (POTS) in
short and medium loop length, wireless and wireline applications. Ideally suited for remote subscriber units, this family of products offers flexibility to designers with high ringing voltage and low power consumption system requirements.
The RSLIC-VoIP family operates to 100V which translates directly to the amount of ringing voltage supplied to the en subscriber. With the high operating voltage, subscriber loop lengths can be extended to 500Ω (i.e., 5,000 feet) and beyond.
Other key features across the product family include: low power consumption, ringing using sinusoidal or trapezoidal waveforms, robust auto-detection mechanisms for when subscribers go on or off hook, and minimal external discrete application components. Integrated test access features are also offered on selected products to support loopback testing as well as line measurement tests.
There are five product offerings of the HC55185 with each version providing voltage grades of high battery voltage and longitudinal balance. The voltage feed amplifier design uses low fixed loop gains to achieve high analog performance with low susceptibility to system induced noise.
• Onboard Ringing Generation
• Compatible with Existing HC5518x Devices
• Low Standby Power Consumption (75V, 65mW)
• Reduced Idle Channel Noise
• Programmable Transient Current Limit
• Improved Off Hook Software Interface
• Integrated MTU DC Characteristics
• Low External Component Count
• Silent Polarity Reversal
• Pulse Metering and On Hook Transmission
• Tip Open Ground Start Operation
• Balanced and Unbalanced Ringing
• Thermal Shutdown with Alarm Indicator
• 28 Lead Surface Mount Packaging
• Reduced Footprint Micro Leadframe Packaging
• Dielectric Isolated (DI) High Voltage Design
• QFN Package Option
- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Product Outline
- Near Chip Scale Package Footprint; Improves PCB efficiency and has a thinner profile
• Pb-free plus anneal available (RoHS compliant)
• Voice Over Internet Protocol (VoIP)
• Cable Modems
• Voice Over DSL (VoDSL)
• Short Loop Access Platforms
• Remote Subscriber Units
• Terminal Adapters


HC55185ECMZ Pinout
(Picture: Pinout)

HC55185ECMZ Block Diagram
(Picture: Diagram)

Technical Parameters

  • Supply Voltage Max
  • 5.25 V
  • Supply Voltage Min
  • 4.75 V, - 16 V
  • Supply Current
  • 10.3 mA
  • Maximum Operating Temperature
  • + 85 C
  • Minimum Operating Temperature
  • 0 C
  • Mounting Style
  • Package / Case
  • PLCC-28
  • Packaging
  • Tube
  • Number of Channels
  • 1

HC55185ECMZ Related Products

Ratings and Reviews

  • 0 / 5
  • 5 Stars 0%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • Ratings
  • Please rate the product!
Shipping More
Estimated Delivery Time: Jun 25 - Jun 30 days (choose Expedited at checkout).

Shipping & Payment


  • Shipping Type
  • Ship Fee
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 5-14 days
  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Terms of payment
  • Hand Fee
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that HC55185ECMZ is the original manufacturer or agent of INTERSIL?
We have a professional business development department to strictly test and verify the qualifications of INTERSIL original manufacturers and agents. All INTERSIL suppliers must pass the qualification review before they can publish their HC55185ECMZ devices; we pay more attention to the channels and quality of HC55185ECMZ products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of HC55185ECMZ chips? Including INTERSIL original factory information, Telecom Line Management ICs application, HC55185ECMZ pictures?
You can use Jotrin's intelligent search engine, or filter by Telecom Line Management ICs category, or find it through Intersil Corporation (Renesas Electronics) Information page.
Q: Are the INTERSIL's HC55185ECMZ price and stock displayed on the platform accurate?
The INTERSIL's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for HC55185ECMZ, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of HC55185ECMZ?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the HC55185ECMZ we delivered, we will accept the replacement or return of the HC55185ECMZ only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of HC55185ECMZ.
(3)The HC55185ECMZ is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as HC55185ECMZ datasheet pdf, HC55185ECMZ pin diagram?
Need any After-Sales service, please feel free contact us:

Intersil Corporation (Renesas Electronics)

Intersil Corporation is a leader in the design and manufacture of high performance analog semiconductors. The company's products are targeted at some of the fastest growing segments of the industry: flat panel displays, mobile phones, other handheld systems and notebook computers. Intersil's product...
  • HC55185AIM96
    HC55185AIM96 VoIP Ringing SLIC; Temperature Range: -40°C to 85°C; Package: 28-PLCC ...
  • HC55185AIMZ
  • HC55185CIMZ
  • HC5503TCBZ
    HC5503TCBZ Telecom Line Management ICs LW COST BALANCED SLIC FORX/KSY 24S0
  • HC55184ECM96R4749
    HC55184ECM96R4749 Circuit Breaker Thermal 1Pole 12A 250VAC/50VDC 2Pin
  • HC55185AIM
    HC55185AIM VoIP Ringing SLIC Family

Certificates & Honor

Certificates & Honor