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CY62158EV30LL-45ZSXI
CY62158EV30 MoBL® 8-Mbit (1024 K × 8) Static RAM 8-Mbit (1024 K × 8) Static RAM Features Functional Description ■ Very high speed: 45 ns ❐ Wide voltage range: 2.20 V–3.60 V The CY62158EV30 is a high performance CMOS static RAM organized as 1024K words by 8 bits. This device features advanced circuit design to provide ultra low active current. This is ideal for providing More Battery Life™ (MoBL) in portable applications such as cellular telephones. The device also has an automatic power down feature that significantly reduces power consumption. Placing the device into standby mode reduces power consumption significantly when deselected (CE1 HIGH or CE2 LOW). The eight input and output pins (I/O0 through I/O7) are placed in a high impedance state when the device is deselected (CE1 HIGH or CE2 LOW), the outputs are disabled (OE HIGH), or a write operation is in progress (CE1 LOW and CE2 HIGH and WE LOW). ■ Pin compatible with CY62158DV30 ■ Ultra low standby power ❐ Typical standby current: 2 A ❐ Maximum standby current: 8 A ■ Ultra low active power ❐ Typical active current: 1.8 mA at f = 1 MHz ■ Easy memory expansion with CE1, CE2, and OE features ■ Automatic power down when deselected ■ CMOS for optimum speed/power ■ Offered in Pb-free 48-ball VFBGA and 44-pin TSOP II packages To write to the device, take Chip Enables (CE1 LOW and CE2 HIGH) and Write Enable (WE) input LOW. Data on the eight I/O pins (I/O0 through I/O7) is then written into the location specified on the address pins (A0 through A19). To read from the device, take Chip Enables (CE1 LOW and CE2 HIGH) and OE LOW while forcing the WE HIGH. Under these conditions, the contents of the memory location specified by the address pins appear on the I/O pins. See Truth Table on page 11 for a complete description of read and write modes. For a complete list of related documentation, click here. Logic Block Diagram 1024K x 8 ARRAY SENSE AMPS ROW DECODER I/O IO1 1 I/O IO2 2 I/O IO3 3 I/O IO4 4 I/O IO5 5 I/O IO6 6 COLUMN DECODER WE I/O IO7 7 POWER DOWN A15 A16 A17 A13 A14 OE Cypress Semiconductor Corporation Document Number: 38-05578 Rev. *J I/O IO0 0 DATA IN DRIVERS • A18 A19 CE1 CE2 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600 Revised November 28, 2014
CYPRESS
Cypress Semiconductor
U.S.A
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