CY7C1399BN 256-Kbit (32 K 8) Static RAM 256-Kbit (32 K 8) Static RAM Features Functional Description Temperature Ranges The CY7C1399BN is a high-performance 3.3 V CMOS Static RAM organized as 32,768 words by 8 bits. Easy memory Industrial: 40 C to 85 C expansion is provided by an active LOW Chip Enable (CE) and Commercial: 0 C to 70 C active LOW Output Enable (OE) and tristate drivers. The device Automotive-A: 40 C to 85 C has an automatic power-down feature, reducing the power Single 3.3 V power supply consumption by more than 95% when deselected. An active LOW Write Enable signal (WE) controls the Ideal for low-voltage cache memory applications writing/reading operation of the memory. When CE and WE High speed: 12 ns inputs are both LOW, data on the eight data input/output pins (I/O through I/O ) is written into the memory location addressed 0 7 Low active power by the address present on the address pins (A through A ). 0 14 180 mW (max) Reading the device is accomplished by selecting the device and Low-power alpha immune 6T cell enabling the outputs, CE and OE active LOW, while WE remains inactive or HIGH. Under these conditions, the contents of the Available in pb-free and non pb-free plastic SOJ and TSOP- I location addressed by the information on address pins is present packages on the eight data input/output pins. The input/output pins remain in a high-impedance state unless the chip is selected, outputs are enabled, and Write Enable (WE) is HIGH. The CY7C1399BN is available in 28-pin standard 300-mil-wide SOJ and TSOP Type I packages. For a complete list of related documentation, click here. Logic Block Diagram g I/O 0 INPUT BUFFER I/O 1 A 0 A 1 I/O A 2 2 A 3 A 4 I/O 3 32K x 8 A 5 ARRAY A 6 A I/O 7 4 A 8 A 9 I/O 5 CE I/O 6 WE POWER COLUMN DOWN DECODER I/O 7 OE Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 001-06490 Rev. *I Revised January 4, 2018 ROW DECODER A 10 A 11 A 12 A 13 A 14 SENSE AMPSCY7C1399BN Contents Pin Configurations ...........................................................3 Package Diagrams .......................................................... 12 Selection Guide ................................................................3 Acronyms ........................................................................14 Maximum Ratings .............................................................4 Document Conventions ................................................. 14 Operating Range ...............................................................4 Units of Measure ....................................................... 14 Electrical Characteristics .................................................4 Document History Page ................................................. 15 Capacitance ......................................................................5 Sales, Solutions, and Legal Information ...................... 16 AC Test Loads and Waveforms .......................................5 Worldwide Sales and Design Support ....................... 16 Data Retention Characteristics .......................................5 Products ....................................................................16 Data Retention Waveform ................................................5 PSoC Solutions ....................................................... 16 Switching Characteristics ................................................6 Cypress Developer Community ................................. 16 Switching Waveforms ......................................................7 Technical Support ..................................................... 16 Truth Table ......................................................................10 Ordering Information ......................................................11 Ordering Code Definitions .........................................11 Document Number: 001-06490 Rev. *I Page 2 of 16