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CAT28C257LA-15T Fiches technique(PDF) 4 Page - Catalyst Semiconductor |
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CAT28C257LA-15T Fiches technique(HTML) 4 Page - Catalyst Semiconductor |
4 / 12 page CAT28C257 4 Doc. No. 1015, Rev. D CAPACITANCE TA = 25°C, f = 1.0 MHz, VCC = 5V Symbol Test Conditions Min Typ Max Units CI/O(1) Input/Output Capacitance VI/O = 0V 10 pF CIN(1) Input Capacitance VIN = 0V 6 pF 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 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. 28C257-12 28C257-15 Symbol Parameter Min Typ Max Min Typ 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 A.C. CHARACTERISTICS, Read Cycle VCC=5V + 10%, Unless otherwise specified Symbol Parameter Min Typ Max Units tPUR Power-Up to Read 100 µs tPUW Power-Up to Write 5 10 ms Power-Up Timing |
Numéro de pièce similaire - CAT28C257LA-15T |
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Description similaire - CAT28C257LA-15T |
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