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IDT7200LA80P fiches techniques PDF

Integrated Device Technology - CMOS ASYNCHRONOUS FIFO 256 x 9/ 512 x 9/ 1K x 9

Numéro de référence IDT7200LA80P
Description CMOS ASYNCHRONOUS FIFO 256 x 9/ 512 x 9/ 1K x 9
Fabricant Integrated Device Technology 
Logo Integrated Device Technology 





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IDT7200LA80P fiche technique
Integrated Device Technology, Inc.
CMOS ASYNCHRONOUS FIFO
256 x 9, 512 x 9, 1K x 9
IDT7200L
IDT7201LA
IDT7202LA
FEATURES:
• First-In/First-Out dual-port memory
• 256 x 9 organization (IDT7200)
• 512 x 9 organization (IDT7201)
• 1K x 9 organization (IDT7202)
• Low power consumption
— Active: 770mW (max.)
—Power-down: 2.75mW (max.)
• Ultra high speed—12ns access time
• Asynchronous and simultaneous read and write
• Fully expandable by both word depth and/or bit width
• Pin and functionally compatible with 720X family
• Status Flags: Empty, Half-Full, Full
• Auto-retransmit capability
• High-performance CEMOStechnology
• Military product compliant to MIL-STD-883, Class B
• Standard Military Drawing #5962-87531, 5962-89666,
5962-89863 and 5962-89536 are listed on this function
• Industrial temperature range (-40oC to +85oC) is
available, tested to military electrical specifications
DESCRIPTION:
The IDT7200/7201/7202 are dual-port memories that load
and empty data on a first-in/first-out basis. The devices use
Full and Empty flags to prevent data overflow and underflow
and expansion logic to allow for unlimited expansion capability
in both word size and depth.
The reads and writes are internally sequential through the
use of ring pointers, with no address information required to
load and unload data. Data is toggled in and out of the devices
through the use of the Write (W) and Read (R) pins.
The devices utilizes a 9-bit wide data array to allow for
control and parity bits at the user’s option. This feature is
especially useful in data communications applications where
it is necessary to use a parity bit for transmission/reception
error checking. It also features a Retransmit (RT) capability
that allows for reset of the read pointer to its initial position
when RT is pulsed low to allow for retransmission from the
beginning of data. A Half-Full Flag is available in the single
device mode and width expansion modes.
The IDT7200/7201/7202 are fabricated using IDT’s high-
speed CMOS technology. They are designed for those
applications requiring asynchronous and simultaneous read/
writes in multiprocessing and rate buffer applications. Military
grade product is manufactured in compliance with the latest
revision of MIL-STD-883, Class B.
FUNCTIONAL BLOCK DIAGRAM
W
WRITE
CONTROL
DATA INPUTS
(D 0 –D 8)
WRITE
POINTER
RAM
ARRAY
256 x 9
512 x 9
1024 x 9
READ
POINTER
R
READ
CONTROL
THREE-
STATE
BUFFERS
DATA OUTPUTS
(Q 0–Q8)
RS
RESET
LOGIC
FLAG
LOGIC
EF FL/RT
FF
EXPANSION
XI
LOGIC
XO/HF
2679 drw 01
The IDT logo is a trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1996 Integrated Device Technology, Inc.
For latest information contact IDT's web site at www.idt.com or fax-on-demand at 408-492-8391.
5.03
DECEMBER 1996
DSC-2679/7
1

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