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参数资料
| 型号： | AS7C25512FT32A-85BIN |
| 厂商： | ALLIANCE SEMICONDUCTOR CORP |
| 元件分类： | SRAM |
| 英文描述： | 512K X 32 STANDARD SRAM, 8.5 ns, PBGA165 |
| 封装： | LEAD FREE, BGA-165 |
| 文件页数： | 8/24页 |
| 文件大小： | 574K |
| 代理商： | AS7C25512FT32A-85BIN |
AS7C25512FT32A
AS7C25512FT36A
4/12/04, v. 1.0
Alliance Semiconductor
16 of 24
Identification register definitions
Scan register sizes
Instruction codes
Instruction field
512K x 36
Description
Revision number (31:28)
xxxx
Reserved for version number.
Device depth (27:23)
xxxxx/xxxxx
Defines the depth of 512K words.
Device width (22:18)
xxxxx/xxxxx
Defines the width of x32 or x36 bits.
Device ID (17:12)
xxxxxx
Reserved for future use.
JEDEC ID code (11:1)
00001010010
Allows unique identification of SRAM vendor.
ID register presence indicator (0)
1
Indicates the presence of an ID register.
Register name
Bit size
Instruction
3
Bypass
1
ID
32
Boundary scan
x18:53
x36:72
Instruction
Code
Description
EXTEST
000
Captures I/O ring contents. Places the boundary scan register between TDI and TDO.
Forces all SRAM outputs to high-Z state. This instruction is not 1149.1-compliant.
IDCODE
001
Loads the ID register with the vendor ID code and places the register between TDI
and TDO. This operation does not affect SRAM operations.
SAMPLE Z
010
Captures I/O ring contents. Places the boundary scan register between TDI and TDO.
Forces all SRAM output drivers to a high-Z state.
Reserved
011
Do not use. This instruction is reserved for future use.
SAMPLE/
PRELOAD
100
Captures I/O ring contents. Places the boundary scan register between TDI and TDO.
Does not affect SRAM operation. This instruction does not implement 1149.1 preload
function and is therefore not 1149.1-compliant.
Reserved
101
Do not use. This instruction is reserved for future use.
Reserved
110
Do not use. This instruction is reserved for future use.
BYPASS
111
Places the bypass register between TDI and TDO. This operation does not affect
SRAM operations.
相关PDF资料 |
PDF描述 |
|---|---|
| AS7C25512NTD32A-166TQI | 512K X 32 ZBT SRAM, 3.5 ns, PQFP100 |
| AS7C3256K18Z-3.5TQC | 256K X 18 STANDARD SRAM, 3.5 ns, PQFP100 |
| AS7C33512NTD18A-166BC | 512K X 18 ZBT SRAM, 9 ns, PBGA119 |
| AS7C3364FT36B-65TQCN | 64K X 36 STANDARD SRAM, 6.5 ns, PQFP100 |
| AS7C3364FT36B-80TQC | 64K X 36 STANDARD SRAM, 8 ns, PQFP100 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AS7C25512FT32A-85TQC | 制造商:ALSC 制造商全称:Alliance Semiconductor Corporation 功能描述:2.5V 512K x 32/36 flowthrough burst synchronous SRAM |
| AS7C25512FT32A-85TQCN | 制造商:ALSC 制造商全称:Alliance Semiconductor Corporation 功能描述:2.5V 512K x 32/36 flowthrough burst synchronous SRAM |
| AS7C25512FT32A-85TQI | 制造商:ALSC 制造商全称:Alliance Semiconductor Corporation 功能描述:2.5V 512K x 32/36 flowthrough burst synchronous SRAM |
| AS7C25512FT32A-85TQIN | 制造商:ALSC 制造商全称:Alliance Semiconductor Corporation 功能描述:2.5V 512K x 32/36 flowthrough burst synchronous SRAM |
| AS7C25512FT36A-10TQC | 制造商:ALSC 制造商全称:Alliance Semiconductor Corporation 功能描述:2.5V 512K x 32/36 flowthrough burst synchronous SRAM |
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