CY7C199N 32 K 8 Static RAM 32 K 8 Static RAM Features Functional Description High speed The CY7C199N is a high-performance CMOS static RAM organized as 32,768 words by 8 bits. Easy memory expansion is 15 ns provided by an active LOW Chip Enable (CE) and active LOW Fast t DOE Output Enable (OE) and three-state drivers. This device has an automatic power-down feature, reducing the power consumption CMOS for optimum speed/power by 81% when deselected. The CY7C199N is in the standard Low active power 300-mil-wide DIP, SOJ, and LCC packages. 550 mW (max, 15 ns L version) An active LOW Write Enable signal (WE) controls the writing/reading operation of the memory. When CE and WE Low standby power inputs are both LOW, data on the eight data input/output pins 0.275 mW (max, L version) (I/O through I/O ) is written into the memory location addressed 0 7 2 V data retention (L version only) by the address present on the address pins (A through A ). 0 14 Reading the device is accomplished by selecting the device and Easy memory expansion with CE and OE features enabling the outputs, CE and OE active LOW, while WE remains inactive or HIGH. Under these conditions, the contents of the TTL-compatible inputs and outputs location addressed by the information on address pins are Automatic power-down when deselected present 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. A die coat is used to improve alpha immunity. For a complete list of related documentation, click here. Logic Block Diagram I/O 0 INPUT BUFFER I/O 1 A 0 A 1 I/O A 2 2 A 3 A 4 I/O 3 1024 x 32 x 8 A 5 ARRAY A 6 I/O A 4 7 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: 001-06493 Rev. *E Revised November 18, 2014 ROW DECODER A 10 A 11 A 12 A 13 A 14 SENSE AMPSCY7C199N Contents Pin Configuration .............................................................3 Ordering Information ...................................................... 10 Selection Guide ................................................................3 Ordering Code Definitions ......................................... 10 Maximum Ratings .............................................................4 Package Diagrams .......................................................... 11 Operating Range ...............................................................4 Acronyms ........................................................................12 Electrical Characteristics .................................................4 Document Conventions ................................................. 12 Capacitance ......................................................................5 Units of Measure ....................................................... 12 AC Test Loads and Waveforms .......................................5 Document History Page ................................................. 13 Data Retention Characteristics .......................................5 Sales, Solutions, and Legal Information ...................... 14 Data Retention Waveform ................................................5 Worldwide Sales and Design Support ....................... 14 Switching Characteristics ................................................6 Products ....................................................................14 Switching Waveforms ......................................................7 PSoC Solutions ...................................................... 14 Typical DC and AC Characteristics ................................9 Cypress Developer Community ................................. 14 Truth Table ......................................................................10 Technical Support ..................................................... 14 Document Number: 001-06493 Rev. *E Page 2 of 14