Function Description
The LH5498 is a dual-port memory with internal addressing function and can implement first-in-first-out algorithm. Through an advanced dual-port architecture, it provides fully asynchronous read/write operations. Empty, full, and half-full status flags are provided to prevent data overflow and underflow. In addition, internal logic is provided to allow unlimited expansion of word length and depth.

FEATURES
• Fast Access Time: 15/20/25/35/50/65/80 ns
• Full CMOS Dual-port Memory Array
• Fully Asynchronous Read and Write
• Expandable in Width and Depth
• Full, Half-Full and Empty Status Flags
• Read rEtransmission Capability
• TTL Compatible I/O
• Packages:
   28-Pin, 300-mil DIP
   28-Pin, 600 mil DIP
   32-Pin PLCC
• Pin and Function Compatible with IDT7203