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AS7C33256NTD18B

Alliance Semiconductor Corporation
Part Number AS7C33256NTD18B
Manufacturer Alliance Semiconductor Corporation
Description 3.3V 256K x 8 Pipelined SRAM
Published Jan 1, 2009
Detailed Description February 2005 ® AS7C33256NTD18B 3.3V 256K×18 Pipelined SRAM with NTDTM Features • Organization: 262,144 words × 18 bit...
Datasheet PDF File AS7C33256NTD18B PDF File

AS7C33256NTD18B
AS7C33256NTD18B

Overview
February 2005 ® AS7C33256NTD18B 3.
3V 256K×18 Pipelined SRAM with NTDTM Features • Organization: 262,144 words × 18 bits • NTD™ architecture for efficient bus operation • Fast clock speeds to 200 MHz • Fast clock to data access: 3.
0/3.
5/4.
0 ns • Fast OE access time: 3.
0/3.
5/4.
0 ns • Fully synchronous operation • Asynchronous output enable control • Available in 100-pin TQFP package www.
DataSheet4U.
com • Byte write enables • Clock enable for operation hold Logic block diagram A[17:0] 18 D • Multiple chip enables for easy expansion • 3.
3V core power supply • 2.
5V or 3.
3V I/O operation with separate VDDQ • Self-timed write cycles • Interleaved or linear burst modes • Snooze mode for standby operation Address register Burst logic Q 18 CLK CE0 CE1 CE2 R/W BWa BWb ADV / LD LBO ZZ DQ [a:b] 18 Write delay addr.
registers CLK D Q 18 Control logic CLK CLK Write Buffer 256K x 18 SRAM Array D Data Q Input Register CLK 18 18 18 18 CLK CEN CLK OE Output Register 18 OE DQ [a:b] Selection Guide -200 Minimum cycle time Maximum clock frequency Maximum clock access time Maximum operating current Maximum standby current Maximum CMOS standby current (DC) 5 200 3.
0 375 135 30 -166 6 166 3.
5 350 120 -133 7.
5 133 4 325 110 Units ns MHz ns mA mA mA 30 30 2/8/05; v.
1.
5 Alliance Semiconductor P.
1 of 18 Copyright © Alliance Semiconductor.
All rights reserved.
AS7C33256NTD18B ® 4 Mb Synchronous SRAM products list1,2 Org 256KX18 128KX32 128KX36 256KX18 128KX32 128KX36 256KX18 www.
DataSheet4U.
com 128KX32 128KX36 256KX18 128KX32 128KX36 256KX18 128KX32 128KX36 Part Number AS7C33256PFS18B AS7C33128PFS32B AS7C33128PFS36B AS7C33256PFD18B AS7C33128PFD32B AS7C33128PFD36B AS7C33256FT18B AS7C33128FT32B AS7C33128FT36B AS7C33256NTD18B AS7C33128NTD32B AS7C33128NTD36B AS7C33256NTF18B AS7C33128NTF32B AS7C33128NTF36B Mode PL-SCD PL-SCD PL-SCD PL-DCD PL-DCD PL-DCD FT FT FT NTD-PL NTD-PL NTD-PL NTD-FT NTD-FT NTD-FT Speed 200/166/133 MHz 200/166/133 MHz 200/166/133 MHz 200/166/1...


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