LH543601 datasheet(39/43 Pages) SHARP

Part #	LH543601

Description	256 x 36 x 2 Bidirectional FIFO

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Manufacturer	SHARP [Sharp Corporation]

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543601-8

t

RQS

t

ACK

t

AF

t

ACK

t

ACK

t

ACK

B

(CK )

B

(R/W )

B

(REQ )

B

(ACK )

(AF2)

A

CK

A

R/W

A

REQ

A

ACK

AF1

RWS

t

**

*

* Indicates where a write would take place, if ACK were tied to EN.

NOTES:

1. For a FIFO access to occur, REQ and EN must be held HIGH for the required setup and hold times.

2. ACK can be tied directly to EN to directly gate FIFO accesses.

3. REQ must be maintained HIGH throughout the entire clock cycle for ACK to be generated.

4. When the REQ/ACK handshake is not used, ACK can be ignored,

and REQ may be tied HIGH or used as a second enable.

5. Parameters without parentheses apply to Port A. Parameters with parentheses apply to Port B.

Starting at the third cycle after entering the

'almost-full' region, acknowledge

occurs on every third cycle to prevent overrun

of the full condition.

Outside the 'almost-full' region,

acknowledge is continuous

for a continuous request.

1

2

Figure 30.

Write Request/Acknowledge Handshake

TIMING DIAGRAMS (cont’d)

256

× 36 × 2 Bidirectional FIFO

LH543601

39

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Manufacturer	Part #	Datasheet	Description
Sharp Corporation	LH5420	2Mb / 35P	256 x 36 x 2 Bidirectional FIFO
Sharp Corporation	LH543611	475Kb / 57P	512 x 36 x 2 / 1024 x 36 x 2 Synchronous Bidirectional FIFO
Integrated Device Techn...	IDT723622	294Kb / 26P	CMOS SyncBiFIFOO 256 x 36 x 2, 512 x 36 x 2, 1024 x 36 x 2
Renesas Technology Corp	IDT723622	370Kb / 25P	CMOS SyncBiFIFOTM 256 x 36 x 2, 512 x 36 x 2, 1,024 x 36 x 2 FEBRUARY 2015
Integrated Device Techn...	IDT72V3622	217Kb / 29P	3.3 VOLT CMOS SyncBiFIFO 256 x 36 x 2 512 x 36 x 2 1,024 x 36 x 2
Renesas Technology Corp	IDT72V3622	385Kb / 30P	3.3 VOLT CMOS SyncBiFIFOTM 256 x 36 x 2 512 x 36 x 2 1,024 x 36 x 2 FEBRUARY 2015
Integrated Device Techn...	IDT72V3624	362Kb / 34P	3.3 VOLT CMOS SyncBiFIFO WITH BUS-MATCHING 256 x 36 x 2, 512 x 36 x 2, 1,024 x 36 x 2
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	IDT72V3626	742Kb / 37P	3.3 VOLT CMOS TRIPLE BUS SyncFIFOTM WITH BUS-MATCHING 256 x 36 x 2, 512 x 36 x 2, 1,024 x 36 x 2 FEBRUARY 2009

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LH543601 Datasheet(PDF) 39 Page - Sharp Corporation

LH543601 Datasheet(HTML) 39 Page - Sharp Corporation

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