IDT723614L20PFGI(2009) Просмотр технического описания (PDF) - Integrated Device Technology

Номер в каталоге

Компоненты Описание

Список матч

IDT723614L20PFGI
(Rev.:2009)

CMOS SyncBiFIFO WITH BUS-MATCHING AND BYTE SWAPPING 64 x 36 x 2

Integrated Device Technology 

CMOS SyncBiFIFOTM WITH

BUS-MATCHING AND BYTE SWAPPING

64 x 36 x 2

IDT723614

FEATURES:

• Free-running CLKA and CLKB can be asynchronous or

coincident (simultaneous reading and writing of data on a

single clock edge is permitted)

• Two independent clocked FIFOs (64 x 36 storage capacity each)

buffering data in opposite directions

• Mailbox bypass Register for each FIFO

• Dynamic Port B bus sizing of 36 bits (long word), 18 bits (word),

and 9 bits (byte)

• Selection of Big- or Little-Endian format for word and byte bus

sizes

• Three modes of byte-order swapping on port B

• Programmable Almost-Full and Almost-Empty flags

• Microprocessor interface control logic

• EFA, FFA, AEA, and AFA flags synchronized by CLKA

• EFB, FFB, AEB, and AFB flags synchronized by CLKB

• Passive parity checking on each port

• Parity generation can be selected for each port

• Supports clock frequencies up to 67 MHz

• Fast access times of 10 ns

• Available in 132-pin plastic quad flat package (PQF) or space-

saving 120-pin thin quad flat package (TQFP)

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

• Green parts available, see ordering information

FUNCTIONAL BLOCK DIAGRAM

CLKA

CSA

W/RA

ENA

MBA

Port-A

Control

Logic

Mail 1

Register

Parity

Gen/Check

MBF1

PEFB

PGB

RST

ODD/

EVEN

Device

Control

FFA

AFA

36

FS0

FS1

A0 - A35

EFA

AEA

RAM

ARRAY

64 x 36

Write Read

Pointer Pointer

FIFO1

FIFO2

Status Flag

Logic

Programmable Flag

Offset Register

Status Flag

Logic

Read Write

Pointer Pointer

36

EFB

AEB

B0-B35

FFB

AFB

36

RAM

ARRAY

64 x 36

PGA

PEFA

MBF2

Parity

Gen/Check

Mail 2

Register

Port-B

Control

Logic

IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc. SyncBIFIFO is a trademark of Integrated Device Technology, Inc.

COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES

1

© 2009 Integrated Device Technology, Inc. All rights reserved. Product specifications subject to change without notice.

CLKB

CSB

W/RB

ENB

BE

SIZ0

SIZ1

SW0

SW1

3146 drw01

JANUARY 2009

DSC-3146/3

Share Link: