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Description
The uPD76F0054GJ is an LSI floppy disk controller (FDC) chip which simplifies the design of an external phase-locked loop and write precompensation circuitry. It handles most of the burdens associated with implementing a floppy disk interface and provides control signals for interfacing a processor to 4 floppy disk drives. It supports both IBM 3740 single density format (FM) and IBM System 34 double density format (MFM) including double-sided recording.
Specifications and features
- Address mark detection circuitry is internal to the FDC, simplifying the phase-locked loop and read electronics.
- User-programmable track stepping rate, head load time, and head unload time.
- Additional features include multi-track and multi-side read and write commands, and single and double density capabilities.
- Variable recording length: 128, 256, 8192 bytes/sector.
- Supports IBM-compatible format (single- and double-sided, single- and double-density).
- Multi-sector and multi-track transfer capability.
- Supports up to 4 floppy or micro floppy disk drives.
- Data scan capability allowing for byte-for-byte comparison of host memory and disk data for a single sector or an entire cylinder.
- Supports data transfers in DMA or non-DMA mode.
- Parallel seek operations on up to four drives.
- Compatible with uPD8080/85, uPD8086/88, V-series, and uPD780 microprocessors.
- Single-phase clock: 8 MHz maximum, 3 +5V only.
Application Scenarios
This electronic component is widely used in applications that require floppy disk interfaces. It is suitable for systems that need to read and write data from floppy or micro floppy disk drives, supporting various formats and transfer capabilities. It can be used with compatible microprocessors for efficient data handling.
Comparison
Advantages- Simplifies the implementation of floppy disk interfaces
- Supports both single and double density formats
- Programmable track stepping rate, head load time, and head unload time
- Supports multi-track and multi-side read and write commands
Disadvantages- Requires a single-phase clock with a maximum frequency of 8 MHz
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
- - DHL eCommerce: 12-22 business days
- - FedEx International Priority: 3-7 business days
- - EMS: 10-15 business days
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Shipping option:
DHL, FedEx, EMS, SF Express, and Registered Air MailShipping tracking:
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How to Buy:
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Popular parts of the same kind
- Datasheet: Download UPD76F0054GJ
- Chipdatas Part: CD94-UPD76F0054GJ
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/03 14:09 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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Western Union charge US$0.00 banking fee.
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