器件名称: AS7C4098A
功能描述: 2.5V 512K x 32/36 flowthrough burst synchronous SRAM
文件大小: 524.79KB 共19页
简 介:December 2004
AS7C25512FT32A AS7C25512FT36A
2.5V 512K × 32/36 flowthrough burst synchronous SRAM
Features
Organization: 524,288 words × 32 or 36 bits Fast clock to data access: 7.5/8.5/10.0 ns Fast OE access time: 3.5/4.0 ns Fully synchronous flow-through operation Asynchronous output enable control Available in 100-pin TQFP package Individual byte write and global write Multiple chip enables for easy expansion 2.5V core power supply Linear or interleaved burst control Snooze mode for reduced power-standby Common data inputs and data outputs
Logic block diagram
LBO CLK ADV ADSC ADSP A[18:0] 19 CLK CE CLR D CE Address register CLK D Q0 Burst logic Q1 19 Q
17
19
512K × 32/36 Memory array
GWE BWE BWd
DQd Q Byte write registers CLK D DQc Q Byte write registers CLK D DQb Q Byte write registers CLK D DQa Q Byte write registers CLK D Enable CE register CLK Power down D Enable Q delay register CLK Q
36/32
36/32
BWc
BWb
BWa CE0 CE1 CE2
4
OE Output buffer
Input registers CLK
ZZ
OE
36/32 DQ[a:d]
Selection guide
Minimum cycle time Maximum clock access time Maximum operating current Maximum standby current Maximum CMOS standby current (DC) -75 8.5 7.5 275 90 60 -85 10 8.5 250 80 60 -10 12 10 230 80 60 Units ns ns mA mA mA
12/23/04, v. 1.2
Alliance Semiconductor
1 of 19
Copyright Alliance Semiconductor. All rights reserved.
AS7C25512FT32A AS7C25512FT36A
16 Mb 2.5V Synchronous SRAM products list1,2
Org 1MX18 512KX32 512KX36 1MX18 512KX32 512KX36 1MX1……
