Products > Integrated Circuits (ICs) > FDC37C665GT

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High-Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controllers

  • Manufacturer :
  • Package/Case :
  • 100-BQFP
  • Product Categories :
  • I/O Controller
  • RoHs Status:
  • Lead free / RoHS Compliant
  • Marking Code:
  • FDC37C665GT
  • In-stock:
  • 54


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FDC37C665GT Product Details

The SMSC FDC37C665GT and FDC37C666GT Advanced High Performance Multi-Mode Parallel Port Super I/O Floppy Disk Controller ICs utilize SMSC's proven SuperCell technology for increased product reliability and functionality. The FDC37C665GT is optimized for motherboard applications while the FDC37C666GT is oriented towards controller card applications. Both devices support 1 Mb/s data rates for vertical recording operation. The FDC37C665GT is hardware compatible with the FDC37C651 and FDC37C661 in the Standard and Enhanced Parallel Port Modes.
The FDC37C665GT and FDC37C666GT incorporate SMSC's true CMOS 765B floppy disk controller, advanced digital data separator, 16 byte data FIFO, two 16C550 compatible UARTs, one Multi-Mode parallel port which includes ChiProtect circuitry plus EPP and ECP support, IDE interface, on-chip 24 mA AT bus drivers, game port chip select (FDC37C666GT only), general purpose address decoder and four floppy direct drive support. The true CMOS 765B core provides 100% compatibility with IBM
PC/XT and PC/AT architectures in addition to providing data overflow and underflow protection. 
The SMSC advanced digital data separator incorporates SMSC's patented data separator technology, allowing for ease of testing and use. Both on-chip UARTs are compatible with the NS16C550. The parallel port, the IDE interface and the game port select logic are compatible with IBM PC/XT and PC/AT architectures, as well as EPP and ECP. The FDC37C665GT and FDC37C666GT incorporate sophisticated power control circuitry (PCC). The PCC supports multiple low power down modes.
The FDC37C665GT Floppy Disk Controller incorporates Software Configurable Logic (SCL) for ease of use. Use of the SCL feature allows programmable system configuration of key functions such as the FDC, parallel port, and UARTs. The parallel port ChiProtect prevents damage caused by the printer being powered when the FDC37C665GT or FDC37C666GT is not powered. The parallel port backdrive current protection prevents the FDC37C665GT or FDC37C666GT from sinking current when the device is powered off and the printer is left powered on.
The FDC37C665GT and FDC37C666GT do not require any external filter components and are, therefore, easy to use and offer lower system cost and reduced board area. The FDC37C665GT and FDC37C666GT are software and register compatible to the
82077AA using SMSC's proprietary floppy disk controller core.
· 5 Volt Operation
· Floppy Disk Available on Parallel Port Pins
· 2.88MB Super I/O Floppy Disk Controller
- Licensed CMOS 765B Floppy Disk Controller
- Software and Register Compatible to the 82077AA Using SMSC's Proprietary Floppy Disk Controller Core
- Supports Vertical Recording Format
- 100% IBM® Compatibility
- Detects All Overrun and Underrun Conditions
- 48 mA Drivers and Schmitt Trigger Inputs
- DMA Enable Logic
- Data Rate and Drive Control Registers
- Swap Drives A and B
- Non-Burst Mode DMA Option
- FDC Primary/Secondary Address Selection
- 16 Byte Data FIFO
- Low Power CMOS 0.8m Design
· Enhanced Digital Data Separator
- Low Cost Implementation - 24 MHz Crystal
- No Filter Components Required
- Ease of Test and Use, Lower System Cost, and Reduced Board Area
- 1 Mb/s, 500 Kb/s, 300 Kb/s, 250 Kb/s Data Rates
- Supports Floppy Disk and Tape Drives
- Programmable Precompensation Modes
· Multi-Mode Parallel Port with ChiProtectÔ Circuitry
- Standard Mode
- IBM PC/XT®, PC/AT®, and PS/2Ô Compatible Bidirectional Parallel Port
- Enhanced Mode
- Enhanced Parallel Port (EPP) Compatible - EPP 1.7 and EPP 1.9 (IEEE 1284 Compliant)
- High Speed Mode
- Microsoft and Hewlett Packard Extended Capabilities Port (ECP) IEEE 1284 Compliant
- Incorporates ChiProtect Circuitry for Protection Against Damage Due to Printer Power-On
- Provides Backdrive Current Protection
- 24 mA Output Drivers
- Two Parallel Port Interrupt Pins
· Serial Ports
- Two High Speed NS16C550 Compatible UARTs with Send/Receive 16 Byte FIFOs
- MIDI Compatible
- Programmable Baud Rate Generator
- Modem Control Circuitry
· ISA Host Interface
· IDE Interface
- On-Chip Decode and Select Logic Compatible with IBM PC/XT and PC/AT Embedded Hard Disk Drives
- IDE Primary/Secondary Address Selection


FDC37C665GT Pinout
(Picture: Pinout)

FDC37C665GT Block Diagram
(Picture: Diagram)

Technical Parameters

  • Manufacturer
  • Packing
  • Tape & Reel (TR)/Cut Tape (CT)/Tray/Tube
  • RoHs Status
  • Lead free / RoHS Compliant
  • Package/Case
  • 100-BQFP

FDC37C665GT Related Products

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  • **enoy***

    Great to do business with. Thanks !!!!!

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Shipping More
Estimated Delivery Time: May 26 - May 31 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.We provide 90 days warranty.

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 FDC37C665GT is the original manufacturer or agent of STANDARD MICROSYSTEMS (SMSC)?
We have a professional business development department to strictly test and verify the qualifications of STANDARD MICROSYSTEMS (SMSC) original manufacturers and agents. All STANDARD MICROSYSTEMS (SMSC) suppliers must pass the qualification review before they can publish their FDC37C665GT devices; we pay more attention to the channels and quality of FDC37C665GT products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of FDC37C665GT chips? Including STANDARD MICROSYSTEMS (SMSC) original factory information, I/O Controller application, FDC37C665GT pictures?
You can use Jotrin's intelligent search engine, or filter by I/O Controller category, or find it through STANDARD MICROSYSTEMS (SMSC) brand manufacturer page.
Q: Are the STANDARD MICROSYSTEMS (SMSC)'s FDC37C665GT price and stock displayed on the platform accurate?
The STANDARD MICROSYSTEMS (SMSC)'s inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for FDC37C665GT, 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 FDC37C665GT?
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 FDC37C665GT we delivered, we will accept the replacement or return of the FDC37C665GT 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 FDC37C665GT.
(3)The FDC37C665GT 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 FDC37C665GT datasheet pdf, FDC37C665GT pin diagram?
Need any After-Sales service, please feel free contact us:

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