CY7C1041BNV33 256 K 16 Static RAM 256 K 16 Static RAM Features Functional Description High speed The CY7C1041BNV33 is a high-performance CMOS Static RAM organized as 262,144 words by 16 bits. t = 12 ns AA Writing to the device is accomplished by taking Chip Enable (CE) Low active power and Write Enable (WE) inputs LOW. If Byte Low Enable (BLE) is 612 mW (max.) LOW, then data from I/O pins (I/O through I/O ), is written into 0 7 Low CMOS standby power the location specified on the address pins (A through A ). If 0 17 Byte High Enable (BHE) is LOW, then data from I/O pins (I/O 1.8 mW (max.) 8 through I/O ) is written into the location specified on the address 15 2.0 V Data Retention (660 W at 2.0 V retention) pins (A through A ). 0 17 Automatic power-down when deselected Reading from the device is accomplished by taking Chip Enable (CE) and Output Enable (OE) LOW while forcing the Write TTL-compatible inputs and outputs Enable (WE) HIGH. If Byte Low Enable (BLE) is LOW, then data from the memory location specified by the address pins will Easy memory expansion with CE and OE features appear on I/O to I/O . If Byte High Enable (BHE) is LOW, then 0 7 data from memory will appear on I/O to I/O . See the truth table 8 15 at the back of this data sheet for a complete description of read and write modes. The input/output pins (I/O through I/O ) are placed in a 0 15 high-impedance state when the device is deselected (CE HIGH), the outputs are disabled (OE HIGH), the BHE and BLE are disabled (BHE, BLE HIGH), or during a write operation (CE LOW, and WE LOW). The CY7C1041BNV33 is available in a standard 44-pin 400-mil-wide body width SOJ and 44-pin TSOP II package with center power and ground (revolutionary) pinout. For a complete list of related documentation, click here. Logic Block Diagram INPUT BUFFER A 0 A 1 A 2 I/O I/O 256K x 16 A 0 7 3 ARRAY A 4 1024 x 4096 A I/O I/O 5 8 15 A 6 A 7 A 8 COLUMN DECODER BHE WE CE OE BLE Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 001-06434 Rev. *G Revised November 25, 2014 ROW DECODER A 9 A 10 A 11 A 12 A 13 A 14 A 15 A 16 A 17 SENSE AMPSCY7C1041BNV33 Contents Pin Configuration .............................................................3 Package Diagrams .......................................................... 11 Selection Guide ................................................................3 Acronyms ........................................................................12 Maximum Ratings .............................................................4 Document Conventions ................................................. 12 Operating Range ...............................................................4 Units of Measure ....................................................... 12 Electrical Characteristics .................................................4 Document History Page ................................................. 13 Capacitance ......................................................................5 Sales, Solutions, and Legal Information ...................... 14 AC Test Loads and Waveforms .......................................5 Worldwide Sales and Design Support ....................... 14 Data Retention Characteristics .......................................5 Products ....................................................................14 Data Retention Waveform ................................................5 PSoC Solutions ...................................................... 14 Switching Characteristics ................................................6 Cypress Developer Community ................................. 14 Switching Waveforms ......................................................7 Technical Support ..................................................... 14 Truth Table ......................................................................10 Ordering Information ......................................................10 Ordering Code Definitions .........................................10 Document Number: 001-06434 Rev. *G Page 2 of 14