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CY7C1446V33-200BX PDF预览

CY7C1446V33-200BX

更新时间: 2024-12-02 06:57:35
品牌 Logo 应用领域
赛普拉斯 - CYPRESS 静态存储器
页数 文件大小 规格书
31页 641K
描述
Cache SRAM, 512KX72, 3ns, CMOS, PBGA209, 14 X 22 MM, 2.20 MM HEIGHT, PLASTIC, BGA-209

CY7C1446V33-200BX 数据手册

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CY7C1440V33  
CY7C1442V33  
CY7C1446V33  
PRELIMINARY  
1M x 36/2M x 18/512K x 72  
Pipelined SRAM  
Chip Enable (CE), burst control inputs (ADSC, ADSP, and  
ADV), write enables (BWa, BWb, BWc, BWd, and BWE), and  
Global Write (GW).  
Features  
• Fast clock speed: 250, 200, and 167 MHz  
• Provide high-performance 3-1-1-1 access rate  
• Fast access time: 2.7, 3.0 and 3.5 ns  
• Optimal for depth expansion  
• Single 3.3V –5% and +5% power supply VDD  
• Separate VDDQ for 3.3V or 2.5V  
• Common data inputs and data outputs  
• Byte Write Enable and Global Write control  
• Chip enable for address pipeline  
Asynchronous inputs include the Output Enable (OE) and  
burst mode control (MODE). The data (DQa,b,c,d) and the data  
parity (DPa,b,c,d  
)
outputs, enabled by OE, are also  
asynchronous.  
DQa,b,c,d and DPa,b,c,d apply to CY7C1440V33, DQa,b and  
DPa,b apply to CY7C1442V33, and DQa,b,c,d,e,f,g,h and  
DPa,b,c,d,e,f,g,h apply to CY7C1446V33. a,b,c,d,e,f,g,h each  
are eight bits wide in the case of DQ and one bit wide in the  
case of DP.  
• Address, data, and control registers  
• Internally self-timed Write Cycle  
• Burst control pins (interleaved or linear burst  
sequence)  
• Automatic power-down for portable applications  
• High-density, high-speed packages  
• JTAG boundary scan for BGA packaging version  
Addresses and chip enables are registered with either  
Address Status Processor (ADSP) or Address Status  
Controller (ADSC) input pins. Subsequent burst addresses  
can be internally generated as controlled by the Burst Advance  
Pin (ADV).  
Address, data inputs, and write controls are registered on-chip  
to initiate self-timed WRITE cycle. WRITE cycles can be one  
to eight bytes wide as controlled by the write control inputs.  
Individual byte write allows individual byte to be written. BWa  
• Available in 119-ball bump BG,165-ball FBGA package,  
and 100-pin TQFP packages (CY7C1440V33 and  
CY7C1442V33). 209 FBGA package for CY7C1446V33.  
controls DQa and DPa. BWb controls DQ and DP . BWc  
b
b
controls DQc and DPd. BWd controls DQ and DPd. BWe  
controls DQe and DPe. BWf controls DQf and DPf. BWg  
controls DQg and DPg. BWh controls DQh and DPh. BWa,  
BWb, BWc, BWd, BWe, BWf, BWg, and BWh can be active  
only with BWE LOW. GW LOW causes all bytes to be written.  
Write pass-through capability allows written data available at  
the output for the immediately next Read cycle. This device  
also incorporates pipelined enable circuit for easy depth  
expansion without penalizing system performance.  
Functional Description  
The Cypress Synchronous Burst SRAM family employs  
high-speed, low-power CMOS designs using advanced  
single-layer polysilicon, triple-layer metal technology. Each  
memory cell consists of six transistors.  
The CY7C1440V33, CY7C1442V33, and CY7C1446V33  
SRAMs integrate 1,048,576 x 36/2,097,152 x 18 and 524,288  
x 72 SRAM cells with advanced synchronous peripheral  
circuitry and a two-bit counter for internal burst operation. All  
synchronous inputs are gated by registers controlled by a  
positive-edge-triggered Clock Input (CLK). The synchronous  
inputs include all addresses, all data inputs, address-pipelining  
All inputs and outputs of the CY7C1440V33, CY7C1442V33,  
and the CY7C1446V33 are JEDEC-standard JESD8-5  
-compatible.  
Selection Guide[1]  
CY7C1440V33  
CY7C1446V33  
CY7C1446V33  
-300  
CY7C1440V33  
CY7C1446V33  
CY7C1446V33  
-250  
CY7C1440V33  
CY7C1446V33  
CY7C1446V33  
-200  
CY7C1440V33  
CY7C1446V33  
CY7C1446V33  
-167  
Unit  
ns  
Maximum Access Time  
2.3  
2.7  
3.0  
3.5  
Maximum Operating Current  
Coml  
TBD  
TBD  
TBD  
TBD  
TBD  
TBD  
TBD  
TBD  
mA  
mA  
Maximum CMOS Standby Current  
Note:  
1. Shaded areas contain advance information.  
Cypress Semiconductor Corporation  
Document #: 38-05184 Rev. *B  
3901 North First Street  
San Jose, CA 95134  
408-943-2600  
Revised November 13, 2002  

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