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| 7c1006: 11-25-91 Revision: April 10, 1995 ADVANCED INFORMATION CMOS static RAM organized as 262,144 words by 4 bits. Easy memory expansion is D provided by an active LOW chip enable (CE), an active LOW output enable (OE), and three state drivers. The device has an D automatic power down feature that signifi D cantly reduces power consumption when D deselected. D Writing to the device is accomplished by taking chip enable (CE) and write enable (WE) inputs LOW. Data on the four I/O D pins (I/O0 through I/O3) is then written Functional Description into the location specified on the address The CY7C1016 is a high performance pins (A0 through A17). Features High speed tAA = 10 ns Output enable (OE) feature CMOS for optimum speed/power Center power/ground pinout Automatic power down when deselected TTL compatible inputs and outputs CY7C1016 256K x 4 Static RAM Reading from the device is accomplished by taking chip enable (CE) 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 four 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), or during a write operation (CE and WE LOW). The CY7C1016 is available in standard 400 mil wide SOJs. Logic Block Diagram Pin Configuration SOJ Top View NC A0 A1 A2 A3 CE I/O0 INPUT BUFFER A1 SENSE AMPS A2 A3 A4 A5 A6 A7 A8 A9 ROW DECODER I/O3 VCC GND I/O1 WE A4 A5 I/O2 A6 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 A17 A16 A15 A14 A13 OE I/O3 GND VCC I/O2 A12 A11 A10 A9 A8 NC 512 x 512 x 4 ARRAY A7 NC I/O1 C1016-2 I/O0 COLUMN DECODER POWER DOWN CE A 10 A 11 A 12 A 13 A 14 A 15 A 16 A 17 A0 WE C1016-1 Selection Guide Maximum Access Time (ns) Maximum Operating Current (mA) Maximum Standby Current (mA) Document #: 38-00439 Cypress Semiconductor Corporation 7C1016-10 Commercial Military Commercial Military D 10 175 55 7C1016-12 12 165 175 50 50 7C1016-15 15 155 165 40 40 3901 North First Street 1 D San Jose D CA 95134 D 408-943-2600 April 1995 |
Price & Availability of CY7C1016
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