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SN74ACT2226 Datasheet CLOCKED FIRST-IN FIRST-OUT MEMORIES

Manufacturer: Texas Instruments

General Description

The SN74ACT2226 and SN74ACT2228 are dual FIFOs suited for a wide range of serial-data buffering applications, including elastic stores for frequencies up to T2 telecommunication rates.

Each FIFO on the chip is arranged as 64 × 1 (SN74ACT2226) or 256 × 1 (SN74ACT2228) and has control signals and status flags for independent operation.

Output flags for each FIFO include input ready (1IR or 2IR), output ready (1OR or 2OR), half full (1HF or 2HF), and almost full/almost empty (1AF/AE or 2AF/AE).

Overview

D Dual Independent FIFOs Organized as: 64 Words by 1 Bit Each – SN74ACT2226 256 Words by 1 Bit Each – SN74ACT2228 D Free-Running Read and Write Clocks Can Be Asynchronous or Coincident on Each FIFO D Input-Ready Flags.