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PM3351

Features: · Single-chip, 1-port, full duplex or half duplex, 10/100BaseT switching device for low-cost unmanaged and managed networks.· On-chip 50 MHz RISC CPU processor core, multi-channel DMA controller, MAC-layer interface logic, FIFOs, PCI-based expansion port and a flexible memory controller....

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SeekIC No. : 004463598 Detail

PM3351: Features: · Single-chip, 1-port, full duplex or half duplex, 10/100BaseT switching device for low-cost unmanaged and managed networks.· On-chip 50 MHz RISC CPU processor core, multi-channel DMA cont...

PM3351 Data Sheet

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Part Number:
PM3351
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:

· Single-chip, 1-port, full duplex or half duplex, 10/100BaseT switching device for low-cost unmanaged and managed networks.
· On-chip 50 MHz RISC CPU processor core, multi-channel DMA controller, MAC-layer interface logic, FIFOs, PCI-based expansion port and a flexible memory controller.
· CPU supports background applications running on local OS (e.g., SNMP or RMON), and real-time data oriented applications (e.g., frame forwarding and filtering decisions).
· Performs frame switching at a rate of 200 Mbit/s (full duplex), 100 Mbit/s (half duplex).
· Fully compatible with the PM3350, 8-port 10 Mbit/s switch device; may be used to create a compact and inexpensive mixed 10/100 Mbit/s switching hub.
· Store-and-forward operation with full error checking and filtering.
· Filtering and switching at wire rates (up to 148,800 packets per second), supporting a mix of Ethernet and IEEE 802.3 protocols.
· Expansion port supports a peak system bandwidth of 1 Gbit/s, and is compatible with industry-standard PCI bus (version 2.1).
· Performs all address learning, address table management and aging functions for up to 32,768 MAC addresses (limited by external memory). Address learning rate of up to 100,000 addresses per second.
· Maximum broadcast/multicast at wire rates with configurable broadcast storm rate limiting.
· Low-latency operation in both unicast and broadcast modes.
· Implements the Link Partition function to isolate malfunctioning segments or hosts.
· IEEE 802.1d compliant spanning-tree transparent bridging supported on-chip, with configurable aging time and frame lifetime control.
· Flow control supported for both full duplex and half duplex operation: supports IEEE 802.3x PAUSE frame flow control in full-duplex mode, and supports userenabled backpressure flow control in half-duplex mode with configurable buffer thresholds and limits.
· Configuration, management, MIB statistics and diagnostics available in-band or out-of-band.
· Maintains and collects per-port and per-host statistics at wire rates, allowing a network switch comprised of PM3351 and PM3350 chips to implement RMON statistics (EtherStats and HostStats) using supplied on-chip firmware.
· Interfaces directly to industry-standard 100 Mbit/s transceivers with no glue logic via the built-in Medium Independent Interface (MII) port with full support for the autonegotiation function implemented by the PHY devices.
· Fully static CMOS operation at 50 MHz clock rates.
· 3.3 Volt core, 5 Volt compatible I/O
· 208 pin PQFP package.


Pinout

Connection Diagram


Specifications

Parameter Symbol Value Units
Supply Voltage Vdd -0.3 to +7.0 Vdc
BIAS5V pin voltage
with respect to Vss		 Vbias5V Minimum: VDD 0.3V
Maximum: 5.5V		 Vdc
Input Voltage Vin Vbias5v +0.3 Vdc
Input Current Iin +/-10 mAdc
Static Discharge
Voltage		   ±1000 V
Latch-Up Current   ±80 mA
Lead Temperature   +220 °C
Storage Temperature Tst -45 to +125 °C
Junction Temperature Tj +125 °C



Description

The PM3351 is a low-cost, highly integrated stand-alone single-chip switching device for 10/100 Mbit/s Ethernet (IEEE 802.3u, IEEE 802.12) switching and bridging applications. The device supports all processing required for switching Ethernet packets between the on-chip Medium Independent Interface (MII) port and the built-in 1 Gbit/s expansion port, to which other PM3351 (ELAN 1x100) or PM3350 (ELAN 8x10) devices may be attached.

The PM3351 is directly compatible with the PM3350, 8-port 10Mbit/s Ethernet switch chip. The PM3351 can be used with the PM3350 to create non-blocking switches of the configurations shown in the table below, with each 100 Mbit/s port configured for fullduplex and each 10 Mbit/s port configured for half-duplex




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