Sharp LH540204
The LH540204 is a FIFO (First-In, First-Out) memory device, based on fully-static CMOS dual-port SRAM technology, capable of storing up to 4096 nine-bit words. It follows the industry-standard architecture and package pinouts for nine-bit asynchronous FIFOs. Each nine-bit LH540204 word may consist of a standard eight-bit byte, together with a parity bit or a block-marking/framing bit.| Part No. | LH540204 |
|---|---|
| Datasheet | LH540204 Download |
| Manufacturer |  Sharp |
| Description | CMOS 4096 x 9 Asynchronous FIFO |
| Buy | Stock & Price |
FEATURES
● Fast Access Times: 20/25/35/50 ns● Fast-Fall-Through Time Architecture Based on CMOS Dual-Port SRAM Technology
● Input Port and Output Port Have Entirely Independent Timing
● Expandable in Width and Depth
● Full, Half-Full, and Empty Status Flags
● Data Retransmission Capability
● TTL-Compatible I/O
● Pin and Functionally Compatible with Sharp LH5499 and with Am/IDT/MS7204
● Control Signals Assertive-LOW for Noise Immunity
● Packages: 28-Pin, 300-mil PDIP 28-Pin, 300-mil SOJ * 32-Pin PLCC CMOS 4096 × 9 Asynchronous FIFO FUNCTIONAL
DESCRIPTION
The input and output ports operate entirely independently of each other, unless the LH540204 becomes either totally full or else totally empty. Data flow at a port is initiated by asserting either of two asynchronous, assertive-LOW control inputs: Write (W) for data entry at the input port, or Read (R) for data retrieval at the output port. Full, Half-Full, and Empty status flags monitor the extent to which the internal memory has been filled.
