Datasheet > IDT72V805

IDT72V805

更新时间： 2024-11-10 23:01:15

品牌	Logo	应用领域
艾迪悌 - IDT		先进先出芯片
页数	文件大小	规格书
26页	486K
描述
3.3 VOLT CMOS DUAL SyncFIFO DUAL 256 x 18, DUAL 512 x 18, DUAL 1,024 x 18, DUAL 2,048 x 18

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IDT72V805 数据手册

IDT72V805

IDT72V815

IDT72V825

IDT72V835

IDT72V845

3.3 VOLT CMOS DUAL SyncFIFO™

DUAL 256 x 18, DUAL 512 x 18,

DUAL 1,024 x 18, DUAL 2,048 x 18

and DUAL 4,096 x 18

• Easily expandable in depth and width

FEATURES:

• Asynchronous or coincident Read and Write Clocks

• Asynchronous or synchronous programmable Almost-Empty

and Almost-Full flags with default settings

• The IDT72V805 is equivalent to two IDT72V205 256 x 18 FIFOs

• The IDT72V815 is equivalent to two IDT72V215 512 x 18 FIFOs

• The IDT72V825 is equivalent to two IDT72V225 1,024 x 18 FIFOs

• The IDT72V835 is equivalent to two IDT72V235 2,048 x 18 FIFOs

• The IDT72V845 is equivalent to two IDT72V245 4,096 x 18 FIFOs

• Offers optimal combination of large capacity (8K), high speed,

design flexibility, and small footprint

• Half-Full flag capability

• Output enable puts output data bus in high-impedance state

• High-performance submicron CMOS technology

• Available in a 128-pin thin quad flatpack (TQFP)

• Industrial temperature range (–40°C to +85°C) is available

• Ideal for the following applications:

– Network switching

– Two level prioritization of parallel data

– Bidirectional data transfer

DESCRIPTION:

The IDT72V805/72V815/72V825/72V835/72V845 are dual 18-bit-wide

synchronous (clocked)First-in, First-out(FIFO)memories designedtorun

off a 3.3V supply for exceptionally low power consumption. One dual

IDT72V805/72V815/72V825/72V835/72V845deviceisfunctionallyequiva-

lenttotwoIDT72V205/72V215/72V225/72V235/72V245FIFOs ina single

package with all associated control, data, and flag lines assigned to

independentpins. These devices are veryhigh-speed, low-powerFirst-In,

First-Out (FIFO) memories with clocked read and write controls. These

– Bus-matching between 18-bit and 36-bit data paths

– Width expansion to 36-bit per package

– Depth expansion to 8,192 words per package

• 10 ns read/write cycle time

• 5V input tolerant

• IDT Standard or First Word Fall Through timing

• Single or double register-buffered Empty and Full Flags

FUNCTIONAL BLOCK DIAGRAM

HFA/(WXOA)

FFA/IRA

PAEA

EFA/

ORA

WCLKA

WENA

WCLKB

WENB

DA0-DA17

LDA

DB0-DB17

LDB

PAFA

INPUT

OFFSET

INPUT

OFFSET

FFB/IRB

FLAG

PAFB

WRITE

FLAG

LOGIC

WRITE

EFB/ORB

PAEB

HFB/(WXOB)

RAM

CONTROL

LOGIC

CONTROL

LOGIC

RAM

ARRAY

256 x 18

512 x 18

1,024 x 18

2,048 x 18

4,096 x 18

256 x 18

512 x 18

1,024 x 18

2,048 x 18

4,096 x 18

READ

POINTER

WRITE

POINTER

READ

POINTER

WRITE

POINTER

FLA

WXIA

(HFA)/WXOA

RXIA

READ

CONTROL

LOGIC

READ

CONTROL

LOGIC

EXPANSION

LOGIC

EXPANSION

LOGIC

OUTPUT

RXOA

RESET

LOGIC

RSA

RESET

LOGIC

RSB

RXOB

RXIB

(HFB)/WXOB

WXIB

FLB

RCLKB

RCLKA

OEB

QA0-QA17

RENB

RENA

OEA

QB0-QB17

4295 drw 01

The IDT logo is a registered trademark and the SyncFIFO is a trademark of Integrated Device Technology, Inc.

COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

APRIL 2001

2001 Integrated Device Technology, Inc.

DSC-4295/1

12 3 4 5 6 7...26

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与IDT72V805相关器件

型号	品牌	获取价格	描述	数据表
IDT72V805L10PF	IDT	获取价格	3.3 VOLT CMOS DUAL SyncFIFO DUAL 256 x 18, DUAL 512 x 18, DUAL 1,024 x 18, DUAL 2,048 x 18
IDT72V805L10PF9	IDT	获取价格	FIFO, 256X18, 6.5ns, Synchronous, CMOS, PQFP128, TQFP-128
IDT72V805L10PFG	IDT	获取价格	FIFO, 256X18, 6.5ns, Synchronous, CMOS, PQFP128, GREEN, TQFP-128
IDT72V805L10PFI	IDT	获取价格	3.3 VOLT CMOS DUAL SyncFIFO DUAL 256 x 18, DUAL 512 x 18, DUAL 1,024 x 18, DUAL 2,048 x 18
IDT72V805L15PF	IDT	获取价格	3.3 VOLT CMOS DUAL SyncFIFO DUAL 256 x 18, DUAL 512 x 18, DUAL 1,024 x 18, DUAL 2,048 x 18
IDT72V805L15PF8	IDT	获取价格	FIFO, 256X18, 10ns, Synchronous, CMOS, PQFP128, TQFP-128
IDT72V805L15PF9	IDT	获取价格	FIFO, 256X18, 10ns, Synchronous, CMOS, PQFP128, TQFP-128
IDT72V805L15PFI	IDT	获取价格	3.3 VOLT CMOS DUAL SyncFIFO DUAL 256 x 18, DUAL 512 x 18, DUAL 1,024 x 18, DUAL 2,048 x 18
IDT72V805L15PFI8	IDT	获取价格	FIFO, 256X18, 10ns, Synchronous, CMOS, PQFP128, TQFP-128
IDT72V805L15PFI9	IDT	获取价格	FIFO, 256X18, 10ns, Synchronous, CMOS, PQFP128, TQFP-128

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