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DP8473N

The DP8473N from Texas Instruments is a full-featured floppy disk controller compatible with mPD765A. It integrates logic for PCXT, PCAT, and PS/2 systems.

✓ Total Stock: 8 pcs

$ Price Range: $0.30

DP8473N Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Partservice ✓ Non-Authorised Inventory information	8 pcs On Request	8 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

DP8473N Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Texas Instruments
Data Rate	250 kb/s
Mounting Type	Surface Mount

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DP8473N Description

Short technical summary and product information.

The DP8473N by Texas Instruments is a comprehensive floppy disk controller designed for compatibility with mPD765A and IBM PC systems, including PCXT, PCAT, and PS/2. It offers enhanced hardware and software features over standard controllers.

Key electrical specifications include support for data rates of 250 kb/s, 300 kb/s, 500 kb/s, and up to 1 Mb/s (MFM). The controller incorporates a precision analog data separator with a self-trimming delay line and VCO, ensuring optimal performance across different data rates. Write precompensation circuitry is also included, providing a fixed 125 ns early-late precompensation for specific data rates or a scalable value.

This device integrates essential logic for PCXT, PCAT, and PS/2 designs, along with an on-chip 24 MHz crystal oscillator, DMA enable logic, and IBM-compatible address decode. It features 1.2m AmP bus interface buffers and 48 mA floppy drive interface buffers. The controller is built using low-power CMOS technology and includes a power-down mode.

The DP8473N is available in a 48-VFQFN Exposed Pad package and supports surface mount. Its design facilitates integration into various floppy disk drive systems requiring high performance and compatibility.

DP8473N Quick Information

Product Type: Floppy Disk Controller

Canonical Name: DP8473N Floppy Disk Controller

Subcategory: Voltage Regulators - Linear Regulator Controllers

DP8473N Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

DP8473N Estimated Pricing

Qty	Low	High
1+	$0.30	$0.30

Estimated market price range - modelled values for guidance only, not live distributor offers.

DP8473N Features

Fully mPD765A and IBM-BIOS compatible.
Integrates PCXT, PCAT, and PS/2 logic.
Supports data rates up to 1 Mb/s.
Precision analog data separator included.
Low power CMOS with power down mode.

DP8473N Applications

Designed for IBM PCXT, PCAT, and PS/2 systems.
Suitable for floppy disk drive controllers.
Enables high-performance data separation.
Supports multiple data rates for flexibility.

DP8473N FAQs

7 frequently asked questions generated from this part’s specifications.

What data rates does the DP8473N floppy disk controller support?

The DP8473N supports data rates of 250 kb/s, 300 kb/s, 500 kb/s, and 1 Mb/s (MFM).

What is the write precompensation value for the DP8473N?

The DP8473N provides a fixed 125 ns early-late precompensation for tracks at 500k/300k/250 kb/s, or a value that scales with data rate for 1 MB/s.

What is the crystal oscillator frequency on the DP8473N?

The DP8473N features an on-chip 24 MHz crystal oscillator.

What is the floppy drive interface current for the DP8473N?

The DP8473N provides 48 mA floppy drive interface buffers.

What is the implied seek capability of the DP8473N?

The DP8473N supports implied seek up to 4000 tracks.

What package is the DP8473N available in?

The DP8473N is available in a 48-VFQFN Exposed Pad package.

What is the RoHS status of the DP8473N?

The RoHS status is RoHS3 Compliant.

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