IDT7203
IDT7204
IDT7205
IDT7206
IDT7207
IDT7208
CMOS ASYNCHRONOUS FIFO
2,048 x 9, 4,096 x 9
8,192 x 9, 16,384 x 9
32,768 x 9 and 65,536 x 9
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First-In/First-Out Dual-Port memory
2,048 x 9 organization (IDT7203)
4,096 x 9 organization (IDT7204)
8,192 x 9 organization (IDT7205)
16,384 x 9 organization (IDT7206)
32,768 x 9 organization (IDT7207)
65,636 x 9 organization (IDT7208)
High-speed: 12ns access time
Low power consumption
— Active: 660mW (max.)
— Power-down: 44mW (max.)
Asynchronous and simultaneous read and write
Fully expandable in both word depth and width
Pin and functionally compatible with IDT720X family
Status Flags: Empty, Half-Full, Full
Retransmit capability
High-performance CMOS technology
Military product compliant to MIL-STD-883, Class B
Standard Military Drawing for #5962-88669 (IDT7203), 5962-89567
(IDT7203), and 5962-89568 (IDT7204) are listed on this function
Industrial temperature range (–40°C to +85°C) is available
(plastic packages only)
Green parts available, see ordering information
DESCRIPTION:
The IDT7203/7204/7205/7206/7207/7208 are dual-port memory buffers
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 (W) and
Read (R) pins.
The device's 9-bit width provides a bit for a control or parity at the user’s
option. It also features a Retransmit (RT) capability that allows the read pointer
to be reset to its initial position when RT is pulsed LOW. A Half-Full Flag is
available in the single device and width expansion modes.
These FIFOs are fabricated using IDT’s high-speed CMOS technology.
They are designed for applications requiring asynchronous 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.
FUNCTIONAL BLOCK DIAGRAM
DATA INPUTS
(D0 -D8)
W
WRITE
CONTROL
RAM ARRAY
WRITE
POINTER
READ
POINTER
2,048 x 9
4,096 x 9
8,192 x 9
16,384 x 9
32,768 x 9
65,536 x 9
THREESTATE
BUFFERS
R
RS
DATA OUTPUTS
(Q 0-Q 8 )
READ
CONTROL
FLAG
LOGIC
XI
EF
FF
EXPANSION
LOGIC
XO/HF
IDT and the IDT logo are trademarks of Integrated Device Technology, Inc.
COMMERCIAL, MILITARY AND INDUSTRIAL TEMPERATURE RANGES
RESET
LOGIC
FL/RT
2661 drw01
APRIL 2006
1
© 2006 Integrated Device Technology, Inc. All rights reserved. Product subject to change without notice.
DSC-2661/15
