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CXD1185CQ

Features: • Satisfies all SCSI bus features, including arbitration, selection, parity generation/check and synchronous data transfer.• Maximum synchronous data transfer rate of 4.0 MB/s and maximum asynchronous data transfer rate of 2.5 MB/s.• Provides two separate ports for th...

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SeekIC No. : 004318433 Detail

CXD1185CQ: Features: • Satisfies all SCSI bus features, including arbitration, selection, parity generation/check and synchronous data transfer.• Maximum synchronous data transfer rate of 4.0 MB/s...

CXD1185CQ Data Sheet

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Part Number:
CXD1185CQ
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Satisfies all SCSI bus features, including arbitration, selection,
   parity generation/check and synchronous data transfer.
• Maximum synchronous data transfer rate of 4.0 MB/s
   and maximum asynchronous data transfer rate of 2.5 MB/s.
• Provides two separate ports for the data bus andthe CPU bus.
• Built-in user-programmable timer for selection/reselection time-out operation.
• Supports 8-bit microcomputer bus.
• Support programmed I/O and DMA transfer.
• Built-in 48 mA (sinking) SCSI port. The SCSI port can
   be used as either single-ended port or differential port.
• Built-in 24-bit data transfer counter.
• Built-in 16-byte FIFO.
• Supports SCSI phase commands.
• All SCSI control signal are software controllable.
• All interrupt conditions are software maskable.
• Built-in 4-bit general-use I/O port.
• Programmable SCSI RST drive time.
• Programmable interrupt pin (IRQ) active logic level.
• Single initiator mode detection logic.
• Selection phase SCSI parity check/ignore switch.
• Pin compatible with CXD1185AQ. (CXD1185CQ only)
• Comes in 64-pin QFP or 64-pin LQFP


Application

SCSI controller


Pinout

Connection Diagram


Specifications

Supply voltage VDD VSS0.5 to +7.0 V
Input voltage VI VSS 0.5 to VDD + 0.5 V
Output voltage VO VSS 0.5 to VDD + 0.5 V
Operating temperature Topr 20 to +75 °C
Storage temperature Tstg 55 to +150 °C



Description

The CXD1185CQ is a high performance CMOS SCSI controller LSI that conforms to ANSIX3. 131- 1986 standards. The CXD1185CQ is capable of operating in both initiator and target modes. It satisfies all standard SCSI bus features, such as arbitration, selection and parity generation/check functions. A 24-bit data transfer byte counter and 16-byte FIFO are built into the hardware. Two separate buses for data and processor makes high speed data transfer possible. 48 mA (sinking) port is built-in to achieve reduction in the number of external components.

The chip CXD1185CQ offers a set of high level commands at SCSI phase level. It is also possible to read/write all individual SCSI signals. The combination of the above two makes programs simpler and at the same time improves programmability.




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