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
•
Industrial temperature range (–40
(plastic packages only)
°C to +85°C) is available
FEATURES:
• First-In/First-Out Dual-Port memory
• 2,048 x 9 organization (IDT7203)
• Green parts available, see ordering information
• 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
DESCRIPTION:
TheIDT7203/7204/7205/7206/7207/7208aredual-portmemorybuffers
withinternalpointersthatloadandemptydataonafirst-in/first-outbasis. The
deviceusesFullandEmptyflagstopreventdataoverflowandunderflowand
expansionlogictoallowforunlimitedexpansioncapabilityinbothwordsizeand
depth.
• Low power consumption
— Active: 660mW (max.)
— Power-down: 44mW (max.)
DataistoggledinandoutofthedevicethroughtheuseoftheWrite(W)and
Read (R) pins.
• 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
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 inthe single device andwidthexpansionmodes.
These FIFOs are fabricatedusingIDT’s high-speedCMOStechnology.
Theyaredesignedforapplicationsrequiringasynchronousandsimultaneous
read/writesinmultiprocessing,ratebufferingandotherapplications.
Militarygradeproductismanufacturedincompliancewiththelatestrevision
of MIL-STD-883, Class B.
FUNCTIONAL BLOCK DIAGRAM
DATA INPUTS
)
8
0
(D -D
WRITE
CONTROL
W
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
WRITE
POINTER
READ
POINTER
THREE-
STATE
BUFFERS
RS
DATA OUTPUTS
READ
CONTROL
)
8
(Q0-Q
RESET
LOGIC
R
FLAG
LOGIC
EF
FF
FL/RT
EXPANSION
LOGIC
XO/HF
XI
2661 drw01
IDTandtheIDTlogoareregisteredtrademarksofIntegratedDeviceTechnology,Inc.
COMMERCIAL,MILITARYANDINDUSTRIALTEMPERATURERANGES
OCTOBER 2008
1
© 2008 Integrated Device Technology, Inc. All rights reserved. Product subject to change without notice.
DSC-2661/16