IDT71V2556, IDT71V2558, 128K x 36, 256K x 18, 3.3V Synchronous ZBT™ SRAMs
with 2.5V I/O, Burst Counter, and Pipelined Outputs
Commercial and Industrial Temperature Ranges
DatasheetDocumentHistory
6/30/99
8/23/99
Updatedtonewformat
AddedSmartZBTfunctionality
Pp. 4, 5
Pg. 6
Added Note 4 and changed Pins 38, 42, and 43 to DNU
Changed U2–U6 to DNU
Pg. 14
Pg. 15
AddedSmartZBTACElectricalCharacteristics
ImprovedtCD andtOE(MAX)at166MHz
Revised tCHZ(MIN) for f ≤ 133 MHz
Revised tOHZ (MAX) for f ≤ 133 MHz
ImprovedtCH, tCL forf≤166MHz
Improvedsetuptimesfor100–200MHz
Pg. 22
Pg. 24
Pg. 14
Pg. 15
AddedBGApackagediagrams
AddedDatasheetDocumentHistory
RevisedACElectricalCharacteristicstable
Revised tCHZ to match tCLZ and tCDC at 133MHz and 100MHz
RemovedSmartfunctionality
AddedIndustrialTemperaturerangeofferings atthe100to166MHzspeedgrades.
AddclarificationnotetoRecommendedTemperatureRatingsandAbsoluteMaxRatings
table;AddnotetoTQFPPinConfigurations
10/4/99
12/31/99
04/30/00
Pg. 5,6
Pg. 6
Pg. 7
Pg. 21
AddBGACapacitancetable
AddnotetoBGAPinConfigurations
InsertTQFPPackageDiagramOutline
05/26/00
07/26/00
Addnewpackageoffering,13x15mm165fBGA
Correct119BGAPackageDiagramOutline
Addzz, sleepmode reference note toTQFP, BG119andBQ165pinouts
UpdateBQ165pinout
Pg. 23
Pg. 5,6,7
Pg. 8
Pg. 23
UpdateBG119packagediagramoutlines
10/25/00
RemovePreliminaryStatus
Pg. 8
Pg. 1-8,15,22,23,27
Pg.7
Add note to pin N5, BQ165 pinout reserved for JTAG TRST
AddedJTAG"SA"versionfunctionality&updatedZZpindescriptions andnotes.
Updated pin configuration for the 119 BGA - reordered I/O signals on P6, P7 (128K x 36)
and P7, N6, L6, K7, H6, G7, F6, E7, D6 (256K x 18).
AddedX generatondiesteptoorderinginformation.
Removed "IDT" from orderable part number
Added"Restrictedhazardoussubstancedevice"totheorderinginformation
5/20/02
10/15/04
02/23/07
10/13/08
05/24/10
Pg.27
Pg.27
Pg.27
CORPORATE HEADQUARTERS
6024 Silver Creek Valley Rd
San Jose, CA 95138
for SALES:
for Tech Support:
sramhelp@idt.com
800-345-7015 or
408/284-4555
800-345-7015 or 408-284-8200
fax: 408-284-2775
www.idt.com
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
ZBT and ZeroBus Turnaround are trademarks of Integrated Device Technology, Inc. and the architecture is supported by Micron Technology and Motorola Inc.
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