Sharp LH543621
The LH543611 and LH543621 contain two FIFO buffers, FIFO #1 and FIFO #2. These operate in parallel, but in opposite directions, for bidirectional data buffering. The LH543611 and LH543621 are ideal either for wide unidirectional applications or for bidirectional data applications; component count and board area are reduced.FEATURES
● Pin-Compatible and Functionally●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
● Upwards-Compatible with Sharp LH5420 and LH543601, but Deeper Expanded Control Register that is Fully Readable as well as Writeable Fast Cycle Times: 18/20/25/30/35 ns Improved Input Setup and Flag Out Timing Two 512 × 36-bit FIFO Buffers (LH543611) or Two 1024 × 36-bit FIFO Buffers (LH543621) Full 36-bit Word Width Selectable 36/18/9-bit Word Width on Port B; Selection May be Changed Without Resetting the BiFIFO Programmable Byte-Order Reversal – ‘Big-Endian ↔ Little-Endian Conversion’ Independently-Synchronized (‘Fully-Asynchronous’) Operation of Port A and Port B ‘Synchronous’ Enable-Plus-Clock Control at Both Ports R/W, Enable, Request, and Address Control Inputs are Sampled on the Rising Clock Edge Synchronous Request/Acknowledge ‘Handshake’ Capability; Use is Optional Device Comes Up Into a Known Default State at Reset; Programming is Allowed, but is not Required Asynchronous Output Enabl...