LH540215 datasheet(11/48 Pages) SHARP

Part #	LH540215

Description	512 x 18 / 1024 x 18 Synchronous FIFO

Download	48 Pages

Scroll/Zoom	100%

Manufacturer	SHARP [Sharp Corporation]

Direct Link	http://sharp-world.com/

Logo

11 / 48 page

DESCRIPTION OF SIGNALS AND

OPERATING SEQUENCES

Table 1. Grouping-Mode Determination

During a Reset Operation

5

EMODE

WXI/

WEN2

RXI/

REN2

FL/

RT

MODE

WXO/HF

USAGE

WXI/

WEN2

USAGE

RXI/

REN2

USAGE

FL/

RT

USAGE

RXO

/EF2

USAGE

H 1

HH

H

Cascaded

Slave 2

WXO

WXI

RXI

FL

RXO

H 1

HH

L

Cascaded

Master

2

WXO

WXI

RXI

FL

RXO

H

HL

X

(Reserved)

–––––

H

LH

X

(Reserved)

–––––

H

LL

H 3

(Not Allowed

During Reset)

(HF)

(none)

(RT)

(none)

H

LL

L 3

Standalone

HF

(none)

RT

(none)

LX

X

H 3

(Not Allowed

During Reset)

(HF)

(WEN2)

(REN2)

(RT)

(EF2)

LX

X

L 3

Interlocked

Paralleled 4

HF

WEN2

REN2

RT

EF2

NOTES:

1.

In IDT-compatible cascading, a reset operation forces WXO/HF and RXO/

EF2 HIGH for the nth FIFO, thus forcing WXI/WEN2 and RXI/REN2

HIGH for the (n + 1)st FIFO.

2.

The terms ‘master’ and ‘slave’ refer to IDT-compatible cascading. In pipelined cascading4, there is no such distinction.

3. Once grouping mode has been determined during a reset operation, FL/RT then may go HIGH to activate a retransmit operation.

4. EMODE must be asserted for access to the Control Register to be enabled. Also, FIFOs being used in a pipelined-cascading

configuration should be in Interlocked Paralleled mode.

5.

Setup-time and recovery-time specifications apply during a reset operation.

6.

H = HIGH; L = LOW; X = Don’t Care.

Table 2. Expansion-Pin Usage According to

Grouping Mode

I/O

IDT-COMPATIBLE OPERATING MODE

ENHANCED

OPERATING MODE

DEPTH-CASCADED

MASTER

DEPTH-CASCADED

SLAVE

STANDALONE

INTERLOCKED

PARALLELED

I

WXI /

WEN2

From WXO ((n-1)st FIFO)

Grounded

From FF (other FIFO)

O

WXO/HF

To WXI ((n+1)st FIFO)

Becomes HF

I

RXI/

REN2

From RXO ((n-1)st FIFO)

Grounded

From EF (other FIFO)

O

RXO

/EF2

To RXI ((n+1)st FIFO)

Unused

Becomes EF2

I

FL/

RT

Grounded (Logic LOW)

Logic HIGH

Becomes RT

1

Becomes RT

1

NOTE:

1.

FL/

RT may be grounded if the Retransmit facility is not being used.

BOLD ITALIC = Enhanced Operating Mode

512 x 18/1024 x 18 Synchronous FIFO

LH540215/25

11

Similar Part No. - LH540215

Manufacturer	Part #	Datasheet	Description
Sharp Corporation	LH540202	156Kb / 18P	CMOS 1024 x 9 Asynchronous FIFO
	LH540203	156Kb / 17P	CMOS 2048 x 9 Asynchronous FIFO
	LH540203D	156Kb / 17P	CMOS 2048X9 ASYNCHRONOUS FIFO
	LH540203D-15	156Kb / 17P	CMOS 2048X9 ASYNCHRONOUS FIFO
	LH540203D-20	156Kb / 17P	CMOS 2048X9 ASYNCHRONOUS FIFO

More results

Similar Description - LH540215

Manufacturer	Part #	Datasheet	Description
Integrated Device Techn...	IDT72511	434Kb / 28P	PARALLEL BIDIRECTIONAL FIFO 512 x 18 & 1024 x 18
	IDT72510	440Kb / 32P	BUS-MATCHING BIDIRECTIONAL FIFO 512 x 18-BIT . 1024 x 9-BIT 1024 x 18-BIT . 2048 x 9-BIT
	IDT72205LB	181Kb / 16P	CMOS SyncFIFOO 256 x 18, 512 x 18, 1024 x 18, 2048 x 18 and 4096 x 18
Sharp Corporation	LH543611	475Kb / 57P	512 x 36 x 2 / 1024 x 36 x 2 Synchronous Bidirectional FIFO
Texas Instruments	SN74V215	590Kb / 43P	[Old version datasheet] 512 X 18, 1024 X 18, 2048 X 18, 4096 X 18 DSP-SYNC FIRST-IN, FIRST-OUT MEMORIES
	SN74V215	600Kb / 43P	[Old version datasheet] 512 X 18, 1024 X 18, 2048 X 18, 4096 X 18 DSP-SYNC FIRST-IN, FIRST-OUT MEMORIES
	SN74V215	555Kb / 40P	[Old version datasheet] 512 X 18, 1024 X 18, 2048 X 18, 4096 X 18 DSP-SYNC FIRST-IN, FIRST-OUT MEMORIES
Sharp Corporation	LH543620	269Kb / 38P	1024 x 36 Synchronous FIFO
Integrated Device Techn...	IDT72V205	214Kb / 25P	3.3 VOLT CMOS SyncFIFO 256 x 18, 512 x 18, 1,024 x 18, 2,048 x 18, and 4,096 x 18
Cypress Semiconductor	CY7C4205	689Kb / 25P	256/512/1K/4K x 18 Synchronous FIFOs

More results

LH540215 Datasheet(PDF) 11 Page - Sharp Corporation

LH540215 Datasheet(HTML) 11 Page - Sharp Corporation

Similar Part No. - LH540215

Similar Description - LH540215

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

Datasheet Download

Link URL