Product Details
Overview
The 450NX PCIset provides an integrated Host-to-PCI bridge and memory controller optimized for multiprocessor systems and standard high-volume (SHV) servers based on the Pentium® II Xeon™ processor variant of the P6 family. The Intel 450NX PCIset consists of four components: 82454NX PCI Expander Bridge (PXB), 82451NX Memory and I/O Bridge Controller (MIOC), 82452NX RAS/CAS Generator (RCG), and 82453NX Data Path Multiplexor (MUX). Figure 1-1 illustrates a typical SHV server system based on the Intel 450NX PCIset. The system bus interface supports up to 4 Pentium II Xeon processors at 100 MHz. An additional bus mastering agent such as a cluster bridge can be supported at reduced frequencies. Two dedicated PCI Expander Bridges (PXBs) can be connected via the Expander Bus. Each PXB provides two independent 32-bit, 33 MHz PCI buses, with an option to link the two buses into a single 64-bit, 33 MHz bus. The Intel 450NX PCIset memory subsystem supports one or two memory cards. Each card is comprised of an RCG, a DRAM array, and two MUXs. The MIOC issues requests to the RCG components on each card to generate RAS#, CAS#, and WE# outputs to the DRAMs. The MUX components provide the datapath for the DRAM arrays. Up to 8 GB of memory in various configurations are supported.
Other capabilities of the Intel 450NX PCIset include:
• Full Pentium® II Xeon™ processor bus interface (36-bit address, 64-bit data) at 100 MHz.
• Support for two dedicated PCI expander bridges (PXBs) attached behind the system bus so as not to add additional electrical load to the system bus.
• Support for both internal and external system bus and I/O bus arbitration.
Supporting Devices
The Intel 450NX PCIset is designed to support the PIIX4E south bridge. The PIIX4E is a highly integrated mulit-functional component that supports the following capabilities:
• PCI Rev 2.1-compliant PCI-to-ISA Bridge with support for 33-MHz PCI operations
• Enhanced DMA controller
• 8259 Compatible Programmable Interrupt Controller
• System Timer functions
• Integrated IDE controller with Ultra DMA/33 support
Product Description
|
ANSC PART# |
ANSC- 824500331 |
|
Part# |
824500331 |
|
Type： |
Electronic components |
|
Manufactor |
Original |
|
DC |
new |
|
Part Status |
Active |
Product Photos
| Product Attribute | Attribute Value |
|---|---|
| Manufacturer: | / |
| Product Category: | ESD Protection Diodes / TVS Diodes |
| Polarity: | Unidirectional |
| Number of Channels: | 1 Channel |
| Working Voltage: | 33 V |
| Termination Style: | SMD/SMT |
| Clamping Voltage: | 53.3 V |
| Breakdown Voltage: | 38.65 V |
| Package / Case: | DO-214AC-2 (SMA) |
| Ipp - Peak Pulse Current: | 40 A |
| Pppm - Peak Pulse Power Dissipation: | 400 W |
| Vesd - Voltage ESD Contact: | - |
| Vesd - Voltage ESD Air Gap: | - |
| Product Type: | TVS Diodes |
| Minimum Operating Temperature: | - 65 C |
| Maximum Operating Temperature: | + 150 C |
| Series: | WE-TVSP |
| Packaging: | Reel |
| Packaging: | Cut Tape |
| Packaging: | MouseReel |
| Factory Pack Quantity: | 1000 |
| Subcategory: | TVS Diodes / ESD Suppression Diodes |
| Part # Aliases: | SMAJ33A |
| Unit Weight: | 0.002497 oz |
Product datasheet
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