RENESAS R8A20410BG

20Mbit QUAD-Search Content Addressable Memory
Features & Benefits
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20Mbit density
Supports large routing tables and enables low-cost,
low-power, more reliable system designs
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360 Million Searches per Second
(MSPS) per table
Delivers the industry’s highest packet look-up
performance for 40G applications and beyond
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40-, 80-, 160-, 320-, 480-, or 640-bit
search key-width support
Provides flexible search conditions that support
multiple search-key configurations
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Multi-device cascading
Allows the TCAM array capacity to effectively be
doubled to 40Mb by connecting two identical
QUAD-Search TCAMs together using the cascade
interface signals
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Sub-core pre-charge technology
Uses patented design techniques to greatly reduce
power consumption, even during high-speed operation
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Compact package
576 FC-BGA (27mm x 27mm, flip-chip type)
Applications
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Enterprise Switches and Routers
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Metro Switches and Routers
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Core Switches and Routers
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Edge Switches and Routers
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3G/4G Mobile Access Platforms
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IPv4 / IPv6 Packet Forwarding
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Layer-4 to Layer-7
Deep Packet Inspection
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Internet Protocol Security (IPsec)
360-MSPS TCAM maximizes multi-layer
packet processing in routers and switches
Switches and routers must deliver bandwidth-hungry services such as voice over
IP (VoIP), IPTV, video on demand (VOD), and wireless 3G/4G with the appropriate Quality of Service (QoS) levels. To create the platforms necessary to
optimally manage large amounts of network traffic quickly and effectively,
system designers are increasingly relying on advanced Ternary Content Addressable Memory (TCAM) devices for performing ultra-fast data packet searches.
The new Renesas R8A20410BG QUAD-Search TCAM has been developed to
address the stringent requirements of high data throughput combined with Deep
Packet Inspection (DPI) for multi-service routers and switches. This 20Mbit
device can make deterministic packet searches at speeds up to 360 Mega Searches
Per Second (MSPS)/table — the industry’s highest packet look-up performance.
Allows 40G+ rates
Operating at 360MHz, the QUAD-Search TCAM chip enables data transfer
rates of 40Gbps and higher. Search bit lengths can be set to 40, 80, 160, 320,
480, or 640 bits. The device also has a multi-bank architecture with four parallel, independently operating search engines which significantly boosts look-up
performance, while supporting a wide range of network applications.
To accommodate very large routing tables, the R8A20410BG allows expansions
up to 40-Mbit density through cascade connections. Incorporating a full-custom
configurable CAM array with an easy-to-use interface, the QUAD-Search TCAM
redefines the state of the art in network search technology. The chip is
planned to be interoperable with Cavium Networks’ OCTEON™ 58xx multi-core
processors, as well as Xelerated’s HX family of network processors.
20Mbit QUAD-Search Content Addressable Memory
Typical application
The 20Mbit, 360MHz device can make deterministic packet searches at 360 MSPS/Table rates, for data transfer rates of 40Gbps and higher.
Renesas also provides a full portfolio of high-performance QDRII+ and DDRII+ SRAMs.
Packet Buffer Memory
Design Factors:
1) Speed of ASIC/NPU
2) Line rates
• For speed & depth: QDR SRAM
• If density>>speed: DRAM
PHY/Framer
Line Speed
Network Port
Data Plane
Forwarding Table
Prefixes stored & searched
Policing Table
QUAD-Search
TCAM
System Memory
NPU/
ASIC/FPGA
Context Memory
• Boot ROM
• Boot RAM
LINE CARD
Queue Management,
Traffic Shaping
Speed>Density
Read/Write ratio = 1
QDR SRAM
Statistics Buffer,
Billing History
Speed>Density
Low latency, short burst
DDR SRAM
Dynamic Memory
Allocation
Speed>Density
Read>>Write
DDR SRAM
Backplane
Specifications
Why Renesas?
Item
R8A20410BG
Memory capacity
20Mbit
Max. clock operating
frequency
360MHz
Search speed
360 MSPS/table max. at 80/160/320 bits
Search key
40L/H, 80, 160, 320, 480, or 640 bits
General-purpose
NPU connectivity
Planned connectivity includes links to Cavium
Networks OCTEON multi-core processors
and Xelerated HX network processors
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Demonstrated success in TCAM development
and large-volume production
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Advanced design techniques, plus state-of-the-art
process technology
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First-in-class TCAM quality, worldwide
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High reliability
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Electrical characteristics with generous design margins
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In-house manufacturing technology
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Patented sub-core technology for “Green technology” designs
Contact your local sales rep for more
information and device samples, or visit:
Package
576-pin FCBGA
(27mm × 27mm, 1.0mm ball pitch)
am.renesas.com
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Renesas Electronics America Inc.
450 Holger Way, San Jose, CA 95134
Tel:408-382-7500 Fax:408-382-7501
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