CY62146GN MoBL 4-Mbit (256K 16) Static RAM 4-Mbit (256K 16) Static RAM Features Functional Description Very high speed: 45 ns The CY62146GN is a high performance CMOS static RAM organized as 256K words by 16 bits. This device features an Temperature ranges advanced circuit design designed to provide an ultra low active Industrial: 40 C to +85 C current. Ultra low active current is ideal for providing More Battery Life (MoBL ) in portable applications such as cellular Wide voltage range: 2.20 V to 3.60 V and 4.5 V to 5.5 V telephones. The device also has an automatic power down Ultra low standby power feature that significantly reduces power consumption by 80 Typical standby current: 3.5 A percent when addresses are not toggling.The device can also be put into standby mode reducing power consumption by more Maximum standby current: 8.7 A than 99 percent when deselected (CE HIGH). The input and Ultra low active power output pins (I/O through I/O ) are placed in a high impedance 0 15 Typical active current: 3.5 mA at f = 1 MHz state when the device is deselected (CE HIGH), outputs are disabled (OE HIGH), both Byte High Enable and Byte Low Automatic power down when deselected Enable are disabled (BHE, BLE HIGH), or a write operation is in Complementary metal oxide semiconductor (CMOS) for progress (CE LOW and WE LOW). optimum speed and power To write to the device, take Chip Enable (CE) and Write Enable (WE) input LOW. If Byte Low Enable (BLE) is LOW, then data Available in a 44-pin TSOP II and 48-ball VFBGA Packages from I/O pins (I/O through I/O ) is written into the location 0 7 specified on the address pins (A through A ). If Byte High 0 17 Enable (BHE) is LOW, then data from the I/O pins (I/O through 8 I/O ) is written into the location specified on the address pins 15 (A through A ). 0 17 To read from the device, take Chip Enable (CE) and Output Enable (OE) LOW while forcing the Write Enable (WE) HIGH. If Byte Low Enable (BLE) is LOW, then data from the memory location specified by the address pins appears on I/O to I/O . If 0 7 Byte High Enable (BHE) is LOW, then data from memory appears on I/O to I/O . See the Truth Table on page 11 for a 8 15 complete description of read and write modes. Logic Block Diagram DATA IN DRIVERS A 10 A 9 A 8 A 7 A 6 256K x 16 A 5 I/O I/O 0 7 A RAM Array 4 A 3 I/O I/O 8 15 A 2 A 1 A 0 COLUMN DECODER BHE WE CE OE BLE Cypress Semiconductor Corporation 198 Champion Court San Jose, CA 95134-1709 408-943-2600 Document Number: 001-95417 Rev. *E Revised December 15, 2017 ROW DECODER A 11 A 12 A 13 A 14 A 15 A 16 A 17 SENSE AMPS CY62146GN MoBL Contents Pin Configurations ...........................................................3 Ordering Information ...................................................... 12 Product Portfolio ..............................................................3 Ordering Code Definitions ......................................... 12 Maximum Ratings .............................................................4 Package Diagrams .......................................................... 13 Operating Range ...............................................................4 Acronyms ........................................................................14 Electrical Characteristics .................................................4 Document Conventions ................................................. 14 Capacitance ......................................................................5 Units of Measure ....................................................... 14 Thermal Resistance ..........................................................5 Document History Page ................................................. 15 AC Test Loads and Waveforms .......................................5 Sales, Solutions, and Legal Information ...................... 16 Data Retention Characteristics .......................................6 Worldwide Sales and Design Support ....................... 16 Data Retention Waveform ................................................6 Products ....................................................................16 Switching Characteristics ................................................7 PSoC Solutions ...................................................... 16 Switching Waveforms ......................................................8 Cypress Developer Community ................................. 16 Truth Table ......................................................................11 Technical Support ..................................................... 16 Document Number: 001-95417 Rev. *E Page 2 of 16