LH543611P-30 View Datasheet(PDF) - Sharp Electronics

Part Name

Description

MFG CO.

LH543611P-30

512 × 36 × 2 / 1024 × 36 × 2 Synchronous Bidirectional FIFO

Sharp Electronics 

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LH543611/21

TIMING DIAGRAMS (cont’d)

512 x 36 x 2/1024 x 36 x 2 BiFIFOs

CKA (CKB)

tRWS tRWH

R/WA (R/WB)

t ES

t EH

ENA (ENB)

t RQS

t RQH

REQA (REQB)

t AE

t AE

AE2 (AE1)

CKB (CKA)

R/WB (R/WA )

ENB (ENA)

tRWS tRWH

t ES

t EH

t RQS tRQH

REQB (REQA )

NOTES:

1. A2A, A1A, and A0A all are held HIGH for FIFO access at Port A.

A0B is held HIGH for FIFO access at Port B.

2. Parameters without parentheses apply to FIFO #2 operation.

Parameters with parentheses apply to FIFO #1 operation.

3. Assertion of the Almost-Empty Flags is controlled by rising clock

edges; whereas, deassertion of the Almost-Empty Flags is controlled

by falling clock edges.

Figure 20. Almost-Empty Flag Timing, When Asynchronous

543611-27

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