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IDT7207L50LB Datasheet

  • IDT7207L50LB

  • CMOS ASYNCHRONOUS FIFO 32,768 x 9

  • 12頁

  • IDT

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CMOS ASYNCHRONOUS FIFO
32,768 x 9
Integrated Device Technology, Inc.
IDT7207
FEATURES:
鈥?32768 x 9 storage capacity
鈥?High-speed: 15ns access time
鈥?Low power consumption
鈥?Active: 660mW (max.)
鈥?Power-down: 44mW (max.)
鈥?Asynchronous and simultaneous read and write
鈥?Fully expandable in both word depth and width
鈥?Pin and functionally compatible with IDT720x family
鈥?Status Flags: Empty, Half-Full, Full
鈥?Retransmit capability
鈥?High-performance CMOS technology
鈥?Military product compliant to MIL-STD-883, Class B
鈥?Industrial temperature range (-40
o
C to +85
o
C) is avail-
able, tested to military electrical specifications
DESCRIPTION:
The IDT7207 is a monolithic dual-port memory buffer with
internal pointers that load and empty data on a first-in/first-out
basis. The device uses 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.
Data is toggled in and out of the device through the use of
the Write ( ) and Read ( ) pins.
The devices 9-bit width provides a bit for a control or parity
at the user鈥檚 option. It also features a Retransmit ( ) capa-
bility that allows the read pointer to be reset to its initial position
when
is pulsed LOW. A Half-Full Flag is available in the
single device and width expansion modes.
The IDT7207 is fabricated using IDT鈥檚 high-speed CMOS
technology. It is designed for applications requiring asynchro-
nous and simultaneous read/writes in multiprocessing, rate
buffering, and other applications.
Military grade product is manufactured in compliance with
the latest revision of MIL-STD-883, Class B.
W
R
RT
RT
FUNCTIONAL BLOCK DIAGRAM
WRITE
CONTROL
DATA INPUTS
(D
0
鈥揇
8
)
W
WRITE
POINTER
RAM ARRAY
32,768 x 9
READ
POINTER
THREE-
STATE
BUFFERS
DATA OUTPUTS
(Q
0
鈥換
8
)
RS
R
READ
CONTROL
RESET
LOGIC
FLAG
LOGIC
EF
FF
FL RT
/
XI
EXPANSION
LOGIC
XO HF
/
3140 drw 01
The IDT logo is a registered trademark of Integrated Device Techology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
漏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.
DECEMBER 1996
DSC-3140/2
5.05
1

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