DESCRIPTION:

The IDT72103/72104 are high-speed Parallel-Serial FlFOs to be used with high-performance systems for functions such as serial communications, laser printer engine control and local area networks.

FEATURES:

• 35ns parallel port access time, 45ns cycle time

• 50MHz serial input/output frequency

• Serial-to-parallel, parallel-to-serial, serial-to-serial, and parallel-to-parallel operations

• Expandable in both depth and width with no external components

• Flexishift™ — Sets programmable serial word width from 4 bits to any width with no external components

• Multiple flags: Full, Almost-Full (Full-1/8),Full-Minus-One, Empty, Almost-Empty (Empty + 1/8), Empty-Plus One, and Half-Full

• Asynchronous and simultaneous read or write operations

• Dual-Port, zero fall-through time architecture

• Retransmit capability in single-device mode

• Packaged in 44-pin PLCC

• Industrial temperature range (–40oC to +85oC)

APPLICATIONS:

• High-speed data acquisition systems

• Local area network (LAN) buffer

• High-speed modem data buffer

• Remote telemetry data buffer

• FAX raster video data buffer

• Laser printer engine data buffer

• High-speed parallel bus-to-bus communications

• Magnetic media controllers

• Serial link buffer