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CAT28C256P-12T Datasheet(PDF) 4 Page - Catalyst Semiconductor |
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CAT28C256P-12T Datasheet(HTML) 4 Page - Catalyst Semiconductor |
4 / 10 page CAT28C256 4 Doc. No. 25020-0A 2/98 28C256-12 28C256-15 Symbol Parameter Min. Max. Min. Max. Units tRC Read Cycle Time 120 150 ns tCE CE Access Time 120 150 ns tAA Address Access Time 120 150 ns tOE OE Access Time 50 70 ns tLZ(1) CE Low to Active Output 0 0 ns tOLZ(1) OE Low to Active Output 0 0 ns tHZ(1)(2) CE High to High-Z Output 50 50 ns tOHZ(1)(2) OE High to High-Z Output 50 50 ns tOH(1) Output Hold from Address Change 0 0 ns MODE SELECTION Mode CE WE OE I/O Power Read L H L DOUT ACTIVE Byte Write ( WE Controlled) L H DIN ACTIVE Byte Write ( CE Controlled) L H DIN ACTIVE Standby, and Write Inhibit H X X High-Z STANDBY Read and Write Inhibit X H H High-Z ACTIVE CAPACITANCE TA = 25°C, f = 1.0 MHz, VCC = 5V Symbol Test Max. Units Conditions CI/O(1) Input/Output Capacitance 10 pF VI/O = 0V CIN(1) Input Capacitance 6 pF VIN = 0V Note: (1) This parameter is tested initially and after a design or process change that affects the parameter. (2) Output floating (High-Z) is defined as the state when the external data line is no longer driven by the output buffer. A.C. CHARACTERISTICS, Read Cycle VCC=5V + 10%, Unless otherwise specified |
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