IDT72104 Datasheet | Integrated Device Technology

CMOS PARALLEL-SERIAL FIFO 2048 x 9, 4096 x 9 Integrated Device Technology, Inc. IDT72103 IDT72104 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 ponents - Flexishift™ - Sets programmable serial word width from 4 bits to any width with no external ponents - 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 (-40o C to +85o C) is available, tested to military electrical specifications 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 munications Magnetic media controllers Serial link buffer DESCRIPTION: The IDT72103/72104 are high-speed Parallel-Serial Fl FOs to be used with high-performance systems for functions such as serial munications, laser printer engine control and local area networks. A serial input, a serial output and two 9-bit parallel ports make four modes of data transfer possible: serial-to-parallel, parallel-to-serial, serial-to-serial, and parallel-to-parallel. The IDT72103/72104 are expandable in both depth and width for all of these operational configurations. FUNCTIONAL BLOCK DIAGRAM SERIAL INPUT SI SIX SICP DATA INPUTS (D 0 -D 8 ) SERIAL INPUT CIRCUITRY FLAG LOGIC SERIAL/ PARALLEL CONTROL RAM ARRAY 2048 x 9 4096 x 9 SI/PI SO/PO W XI XO FL/RT FF FF-1 EF+1 EF AEF HF R RS WRITE...