Features: • 4096 Entries• 160 ns Match Time• Mask Register to Don't Care Selected Bits• Depth Expansion by Cascading Multiple Devices• 50 MHz Maximum Clock Rate• Programmable Match and Output Field Widths• Concurrent Matching of Virtual Path Circuits and...
MCM69C232: Features: • 4096 Entries• 160 ns Match Time• Mask Register to Don't Care Selected Bits• Depth Expansion by Cascading Multiple Devices• 50 MHz Maximum Clock Rate•...
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Rating | Symbol | Value | Unit |
Supply Voltage (see Note 2) | VDD | 4.6 | V |
Voltage Relative to VSS (see Note 2) | Vin | 0.5 to VDD + 0.5 V | V |
Output Current per Pin | Iout | ± 20 | mA |
Package Power Dissipation (see Note 3) | PD | - | W |
Temperature Under Bias (see Note 3) | Tbias | 10 to 85 | |
Operating Temperature (see Note 4) | TA | 0 to 70 | |
Storage Temperature | Tstg | 55 to 125 |
The MCM69C232 is a flexible contentaddressable memory (CAM) that can contain 4096 entries of 64 bits each. The widths of the match field and the output field are programmable, and the match time is designed to be 160 ns. As a result, the MCM69C232 is well suited for datacom applications such as Virtual Path Identifier/Virtual Circuit Identifier (VPI/VCI) translation in ATM switches up to OC12 (622 Mbps) data rates and Media Access Control (MAC) address lookup in Ethernet/Fast Ethernet bridges. The match duty cycle of the MCM69C232 is user defined, with a tradeoff between the time between matches and the number of new entries added to the CAM per second.