CY7C199D Automotive 256-Kbit (32K 8) Static RAM 256-Kbit (32K 8) Static RAM Features Functional Description Temperature ranges The CY7C199D Automotive is a high performance CMOS static Automotive-E: 40 C to 125 C RAM organized as 32,768 words by 8 bits. Easy memory expansion is provided by an active LOW chip enable (CE), an Operating voltage V = 5 V CC active LOW output enable (OE) and tri-state drivers. This device Pin and function compatible with CY7C199C has an automatic power-down feature, reducing the power consumption when deselected. The input and output pins (I/O 0 High speed through I/O ) are placed in a high-impedance state when the 7 t = 25 ns AA device is deselected (CE HIGH), the outputs are disabled (OE Low active power HIGH), or during a write operation (CE LOW and WE LOW). I = 63 mA CC Write to the device by taking chip enable (CE) and write enable Low complementary metal oxide semiconductor (CMOS) (WE) inputs LOW. Data on the eight I/O pins (I/O through I/O ) 0 7 standby power is then written into the location specified on the address pins (A 0 I = 15 mA through A ). SB2 14 2.0 V Data Retention Read from the device by taking chip enable (CE) and output enable (OE) LOW while forcing write enable (WE) HIGH. Under Automatic power-down when deselected these conditions, the contents of the memory location specified Complementary metal oxide semiconductor (CMOS) for by the address pins appears on the I/O pins. optimum speed/power For a complete list of related resources, click here. Transistor-transistor logic (TTL) compatible inputs and outputs Easy memory expansion with CE and OE features Available in Pb-free 28-pin 300-Mil-wide small-outline integrated circuit (SOIC) 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 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: 001-65330 Rev. *E Revised February 19, 2016 ROW DECODER A 10 A 11 A 12 A 13 A 14 SENSE AMPSCY7C199D Automotive Contents Pin Configuration .............................................................3 Ordering Information ...................................................... 11 Selection Guide ................................................................3 Ordering Code Definitions ......................................... 11 Maximum Ratings .............................................................4 Package Diagrams .......................................................... 12 Operating Range ...............................................................4 Acronyms ........................................................................13 Electrical Characteristics .................................................4 Document Conventions ................................................. 13 Capacitance ......................................................................5 Units of Measure ....................................................... 13 Thermal Resistance ..........................................................5 Document History Page ................................................. 14 AC Test Loads and Waveforms .......................................5 Sales, Solutions, and Legal Information ...................... 15 Data Retention Characteristics .......................................6 Worldwide Sales and Design Support ....................... 15 Data Retention Waveform ................................................6 Products ....................................................................15 Switching Characteristics ................................................7 PSoC Solutions ...................................................... 15 Switching Waveforms ......................................................8 Cypress Developer Community ................................. 15 Truth Table ......................................................................11 Technical Support ..................................................... 15 Document Number: 001-65330 Rev. *E Page 2 of 15