LH540215 datasheet(1/48 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

1 / 48 page

LH540215/25

512

× 18 / 1024 × 18 Synchronous FIFO

FEATURES

•• Fast Cycle Times: 20/25/35 ns

•• Pin-Compatible Drop-In Replacements for

IDT72215B/25B FIFOs

•• Choice of IDT-Compatible or Enhanced Operating

Mode; Selected by an Input Control Signal

•• Device Comes Up into One of Two Known Default

States at Reset Depending on the State of the

EMODE Control Input: Programming is Allowed, but

is not Required

•• Internal Memory Array Architecture Based on CMOS

Dual-Port SRAM Technology, 512

× 18 or 1024 × 18

•• ‘Synchronous’ Enable-Plus-Clock Control at Both

Input Port and Output Port

•• Independently-Synchronized Operation of Input Port

and Output Port

•• Control Inputs Sampled on Rising Clock Edge

•• Most Control Signals Assertive-LOW for

Noise Immunity

•• May be Cascaded for Increased Depth, or

Paralleled for Increased Width

•• Five Status Flags: Full, Almost-Full, Half-Full,

Almost-Empty, and Empty; ‘Almost’ Flags are

Programmable

•• In Enhanced Operating Mode, Almost-Full,

Half-Full, and Almost-Empty Flags can be Made

Completely Synchronous

•• In Enhanced Operating Mode, Duplicate Enables

for Interlocked Paralleled FIFO Operation, for

36-Bit Data Width, when Selected and

Appropriately Connected

•• In Enhanced Operating Mode, Disabling

Three-State Outputs May be Made to Suppress

Reading

•• Data Retransmit Function

•• TTL/CMOS-Compatible I/O

•• Space-Saving 68-Pin PLCC Package, and 64-Pin

TQFP Package

RESET

LOGIC

INPUT

PORT

RS

INPUT

PORT

CONTROL

LOGIC

READ

POINTER

WRITE

POINTER

DEDICATED AND

PROGRAMMABLE

STATUS FLAGS

FIFO

MEMORY ARRAY

512 x 18/1024 x 18

OUTPUT

PORT

CONTROL

LOGIC

FF

PAF

WXO/HF

RXO

/EF2

PAE

D0 - D17

WEN

WCK

Q0 - Q17

RCK

OUTPUT

PORT

REN

OE

PROGRAMMABLE

REGISTERS

EXPANSION

LOGIC

WXI/

WEN2

FL/

RT

WXO/HF

RXI/

REN2

RXO/

EF2

LD

540215-1

WXI/

WEN2

RXI/

REN2

BOLD ITALIC = Enhanced Operating Mode.

EMODE

EF

Figure 1.

LH540215/25 Block Diagram

BOLD ITALIC = Enhanced Operating Mode

1

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) 1 Page - Sharp Corporation

LH540215 Datasheet(HTML) 1 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