DESCRIPTION

· The SN74V3640, SN74V3650, SN74V3660, SN74V3670, SN74V3680, and SN74V3690 are high-speed CMOS FIFO memories with clocked read/write controls and flexible bus-matching ×36/×18/×9 data flow.

· These FIFOs are designed for applications requiring large data buffering and bus size matching.

FEATURES

· Flexible ×36/×18/×9 bus matching on both read and write ports.

· Fixed and short retransmit operation period.

· Fixed and short first-word data-latency period.

· High-density offerings up to 1 Mbit.

· 5-V-tolerant inputs.

· Master and partial reset functionalities.

· Empty, full, and half-full flags for FIFO status.

· Programmable almost-empty and almost-full flags.

· Selectable synchronous/asynchronous timing modes.

· Output enable for high-impedance state.

· Expandable in depth and width.

· Independent read and write clocks.

APPLICATIONS

· Network, video, and signal processing.

· Telecommunications and data communications.

· Applications requiring large data buffering and bus size matching.