P1480

The P1480 LAN CAM is designed as a 1Kx64bit fixed-width CMOS content-addressable memory (CAM) aimed at address filtering applications in local-area network (LAN) bridges and rounters. The architecture of the LAN CAM allows a network station list of any length to be searched in a single memory transaction. This P1480 is also well-suited for other applications that require high-speed data searching such as optical and magnetic disk caches and data base accelerators.

P1480 has many features. (1)1Kx64-bit CMOS content-addressable memory (CAM). (2)64-bit internal data path multiplexed four ways over a 16-bit I/O interface. (3)Simple four-wire synchronous control directly usable in conventional memory subsystems. (4)Extensice instruction set adds control flexibility memory array width can be configured as a mixture of CAM and RAM on 16-bit boundaries. (5)Memory operations allow random access, associative access, and write-at-next-free-address cycles. (6)Vertical cascading and system flag generation require no external logic. (7)Two mask registers allow masking of individual bits for both writing and comparing. (8)Priority encoder returns highest-priority match address. (9)Device gives status information after each operation. And so on.

Some absolute maximum ratings of P1480 have been concluded into several points as follow. (1)Its voltage on all other pins would be from -0.5V to Vcc+0.5V. (2)Its supply voltage would be from -0.5V to 7.0V. (3)Its temperature under bias would be from -40°C to 85°C. (4)Its storage temperature range would be from -55°C to 125°C. (5)Its DC output current would be 20mA (per output, one at a time, one second duration). It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of P1480 are concluded as follow. (1)Its average power supply current would be max 200mA. (2)Its output voltage logic 1 would be min 2.4V. (3)Its output voltage logic 0 would be max 0.4V. (4)Its input leakage current would be min -2uA and max 2uA. (5)Its output leakage current would be min -10uA and max 10uA. And so on. If you have any question or suggestion or want to know more information about P1480 please contact us for details. Thank you!