LH5491 Overview
The LH5481 and LH5491 are high-performance, asynchronous First-In, First-Out (FIFO) memories organized 64 words deep by eight or nine bits wide. The eight-bit LH5481 has an Output Enable (OE) function, which can be used to force the eight data outputs (DO) to a high-impedance state. The LH5491 has nine data outputs.
LH5491 Key Features
- Fastest 64 × 8/9 Cascadable FIFO 35/25/15 MHz
- Expandable in Word Width and FIFO Depth
- Almost-Full/Almost-Empty and Half-Full Flags
- Fully Independent Asynchronous Inputs and Outputs
- LH5481 Output Enable forces Data Outputs to High-Impedance State
- Pin-patible Replacements for Cypress CY7C408A/09A or Logic Devices L8C408/09 FIFOs
- Industry Standard Pinout
- Packages: 28-Pin, 300-mil DIP 28-Pin PLCC FUNCTIONAL DESCRIPTION