6.42
26
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
CORPORATE HEADQUARTERS for SALES: for Tech Support:
2975 Stender Way 800-345-7015 or 408-727-6116 sramhelp@idt.com
Santa Clara, CA 95054 fax: 408-492-8674 800-544-7726, x4033
www.idt.com
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
Datasheet Document History
6/30/99 Updated to new format
8/23/99 Added Smart ZBT functionality
Pp. 4, 5 Added Note 4 and changed Pins 38, 42, and 43 to DNU
Pg. 6 Changed U2–U6 to DNU
Pg. 14 Added Smart ZBT AC Electrical Characteristics
Pg. 15 Improved tCD and tOE(MAX) at 166MHz
Revised tCHZ(MIN) for f ≤ 133 MHz
Revised tOHZ (MAX) for f ≤ 133 MHz
Improved tCH, tCL for f ≤ 166 MHz
Improved setup times for 100–200 MHz
Pg. 22 Added BGA package diagrams
Pg. 24 Added Datasheet Document History
10/4/99 Pg. 14 Revised AC Electrical Characteristics table
Pg. 15 Revised tCHZ to match tCLZ and tCDC at 133MHz and 100MHz
12/31/99 Removed Smart functionality
Added Industrial Temperature range offerings at the 100 to 166MHz speed grades.
04/30/00 Pg. 5,6 Add clarification note to Recommended Temperature Ratings and Absolute Max Ratings
table; Add note to TQFP Pin Configurations
Pg. 6 Add BGA Capacitance table
Pg. 7 Add note to BGA Pin Configurations
Pg. 21 Insert TQFP Package Diagram Outline
05/26/00 Add new package offering, 13 x 15mm 165fBGA
Pg. 23 Correct 119 BGA Package Diagram Outline
07/26/00 Pg. 5,6,7 Add zz, sleep mode reference note to TQFP, BG119 and BQ165 pinouts
Pg. 8 Update BQ165 pinout
Pg. 23 Update BG119 package diagram outlines
10/25/00 Remove Preliminary Status
Pg. 8 Add note to pin N5, BQ165 pinout reserved for JTAG TRST
