![](http://datasheet.mmic.net.cn/IDT--Integrated-Device-Technology-Inc/IDT7208L35P_datasheet_105014/IDT7208L35P_1.png)
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DSC-2661/18
2012 Integrated Device Technology, Inc. All rights reserved. Product subject to change without notice.
JUNE 2012
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
IDT7203
IDT7204
IDT7205
IDT7206
IDT7207
IDT7208
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc.
COMMERCIAL,MILITARYANDINDUSTRIALTEMPERATURERANGES
FEATURES:
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
720x family is pin and functionally compatible from 256 x 9 to 64k x 9
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
DESCRIPTION:
TheIDT7203/7204/7205/7206/7207/7208aredual-portmemorybuffers
withinternalpointersthatloadandemptydataonafirst-in/first-outbasis. The
deviceusesFullandEmptyflagstopreventdataoverflowandunderflowand
expansionlogictoallowforunlimitedexpansioncapabilityinbothwordsizeand
depth.
DataistoggledinandoutofthedevicethroughtheuseoftheWrite(W)and
Read (R) pins.
The device's 9-bit width provides a bit for a control or parity at the user’s
option. ItalsofeaturesaRetransmit(RT)capabilitythatallowsthereadpointer
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 high-speed CMOS technology. They
aredesignedforapplicationsrequiringasynchronousandsimultaneousread/
writesinmultiprocessing,ratebufferingandotherapplications.
MilitarygradeproductismanufacturedincompliancewithMIL-STD-883,
ClassB.
FUNCTIONAL BLOCK DIAGRAM
Industrial temperature range (–40
°C to +85°C) is available
(plastic packages only)
W
WRITE
CONTROL
READ
CONTROL
R
FLAG
LOGIC
EXPANSION
LOGIC
XI
WRITE
POINTER
RAM ARRAY
2,048 x 9
4,096 x 9
8,192 x 9
16,384 x 9
32,768 x 9
65,536 x 9
READ
POINTER
DATA INPUTS
RESET
LOGIC
THREE-
STATE
BUFFERS
DATA OUTPUTS
EF
FF
XO/HF
RS
0
(D -D8)
0
(Q -Q 8)
2661 drw01
Green parts available, see ordering information