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CY7C1046DV33 Datasheet(PDF) 1 Page - Cypress Semiconductor |
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CY7C1046DV33 Datasheet(HTML) 1 Page - Cypress Semiconductor |
1 / 14 page CY7C1046DV33 4-Mbit (1 M × 4) Static RAM Cypress Semiconductor Corporation • 198 Champion Court • San Jose , CA 95134-1709 • 408-943-2600 Document Number: 38-05611 Rev. *D Revised December 2, 2010 4-Mbit (1 M × 4) Static RAM Features ■ Pin- and function-compatible with CY7C1046CV33 ■ High speed ❐ tAA = 10 ns ■ Low active power ❐ ICC = 90 mA @ 10 ns ■ Low CMOS standby power ❐ ISB2 = 10 mA ■ 2.0 V data retention ■ Automatic power-down when deselected ■ TTL-compatible inputs and outputs ■ Easy memory expansion with CE and OE features ■ Available in lead-free 400-mil-wide 32-pin SOJ package Functional Description The CY7C1046DV33[1] is a high-performance CMOS static RAM organized as 1M words by 4 bits. Easy memory expansion is provided by an active LOW Chip Enable (CE), an active LOW Output Enable (OE), and tri-state drivers. Writing to the device is accomplished by taking Chip Enable (CE) and Write Enable (WE) inputs LOW. Data on the four I/O pins (I/O0 through I/O3) is then written into the location specified on the address pins (A0 through A19). Reading from the device is accomplished by taking Chip Enable (CE) and Output Enable (OE) LOW while forcing Write Enable (WE) HIGH. Under these conditions, the contents of the memory location specified by the address pins will appear on the I/O pins. The four input/output pins (I/O0 through I/O3) are placed in a high-impedance state when the device is deselected (CE HIGH), the outputs are disabled (OE HIGH), or during a Write operation (CE LOW, and WE LOW). The CY7C1046DV33 is available in a standard 400-mil-wide 32-pin SOJ package with center power and ground (revolutionary) pinout. Logic Block Diagram A1 A2 A3 A4 A5 A6 A7 A8 COLUMN DECODER INPUT BUFFER POWER DOWN WE OE I/O0 I/O1 1 Mbit x 4 I/O3 I/O2 A0 CE A9 A10 Note 1. For guidelines on SRAM system design, please refer to the System Design Guidelines Cypress application note, available on the internet at www.cypress.com. [+] Feedback |
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