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VRC4372O

Features: · Compatible with NEC VR43xx CPUs and VRC4373 and VRC4375 system controllers· PCI Bus Interface Controller • Compliant with the 3.3-volt PCI interface specification (version 2.1) • 5-volt PCI signaling in a controlled environment (with voltage spikes less than 7.6 volts and D...

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SeekIC No. : 004542959 Detail

VRC4372O: Features: · Compatible with NEC VR43xx CPUs and VRC4373 and VRC4375 system controllers· PCI Bus Interface Controller • Compliant with the 3.3-volt PCI interface specification (version 2.1) ...

VRC4372O Data Sheet

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Part Number:
VRC4372O
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:

· Compatible with NEC VR43xx CPUs and VRC4373 and VRC4375 system controllers
· PCI Bus Interface Controller
    • Compliant with the 3.3-volt PCI interface specification (version 2.1)
    • 5-volt PCI signaling in a controlled environment (with voltage spikes less than 7.6 volts and DC levels less than 6.6 volts)
    • PCI bus arbitration for one internal and six external PCI masters
· I/O Controller
    • ISA-like, 16-bit I/O bus and four independent direct memory access (DMA) channels
    • Ten chip selects and control signals for interfacing to external peripheral chips
    • N-to-3 interrupt controller to regulate interrupts from 14 input pins, two internal timers, the keyboard, the mouse, and four DMA channels can be encoded onto one of three outgoing interrupt lines
· Four programmable DMA channels
    • Unique TC, EOP, DREQ, and DACK signals on each channel
    • Block or single transfers
    • Read or write requests
    • I/O device-demanded service requests via DREQx
    • Software-initiated requests
    • Channel suspend via the MASK register bit
    • I/O device transfer termination via EOP
    • Channel reload notification and termination notification via an interrupt
    • Efficient PCI bus data packing mode
    • Byte/short scattering/gathering capabilities (one per PCI word)
· Miscellaneous I/O
    • Timer and a beeper source
    • General-purpose control/status I/O pins
· Test Port
    • TESTOE signal that can be used to tristate all outputs
    • SCAN pin to place the chip in scan mode
· Data buffers for direct memory access channels and the I/O bus
· 33-MHz bus frequency


Pinout

Connection Diagram


Specifications

Storage temperature                              55°C to 125°C
Operating ambient temperature                     0°C to 70°C
DC supply voltage (Note)                            0.5 V to 4.6 V
DC voltage on input pins (Note)                   0.5 V to 5.5 V
Voltage discharged between any two pins                 2000 V
through 1 K at 100 pF
Maximum power dissipation                                           1 W
Note: DC voltage is measured with respect to ground.




Description

The VRC4372O is a PCI-based I/O controller for high-performance, low-cost system implementation. Connected to the PCI bus, it is designed to support NEC's VRC4372O CPU, interfacing between the VRC4372O system controller and peripherals for tethered applications such as set-top boxes, printers, network computers and consumer electronics.




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