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XM28C040 датащи(PDF) 11 Page - Xicor Inc. |
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XM28C040 датащи(HTML) 11 Page - Xicor Inc. |
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11 / 17 page ![]() XM28C040 11 Note: (3) tHZ and tOHZ are measured from the point when CE or OE return high (whichever occurs first) to the time when the outputs are no longer driven. 3873 FHD F03 MODE SELECTION CE OE WE Mode I/O Power L L H Read DOUT Active L H L Write DIN Active H X X Standby and Write Inhibit High Z Standby X L X Write Inhibit — — X X H Write Inhibit — — 3873 PGM T06 A.C. CHARACTERISTICS XM28C040 TA = 0°C to +75°C, VCC = +5V ±10%, unless otherwise specified. XM28C040I TA = –40°C to +85°C, VCC = +5V ±10%, unless otherwise specified. XM28C040M TA = –55°C to +125°C, VCC = +5V ±10%, unless otherwise specified. Read Cycle Limits XM28C040-20 XM28C040-25 XM28C040 Symbol Parameter Min. Max. Min. Max. Min. Max. Units tRC Read Cycle Time 200 250 300 ns tCE Chip Enable Access Time 200 250 300 ns tAA Address Access Time 200 250 300 ns tOE Output Enable Access Time 80 100 100 ns tLZ(4) CE Low to Active Output 0 0 0 ns tOLZ(4) OE Low to Active Output 0 0 0 ns tHZ(4) CE High to High Z Output 100 100 100 ns tOHZ(4) OE High to High Z Output 100 100 100 ns tOH Output Hold From Address Change 0 0 0 ns 3873 PGM T07 Read Cycle tCE tRC ADDRESS CE OE WE DATA VALID DATA VALID tOE tLZ tOLZ tOH tAA tHZ tOHZ DATA I/O VIH HIGH Z A.C. CONDITIONS OF TEST Input Pulse Levels 0V to 3V Input Rise and Fall Times 10ns Input and Output Timing Levels 1.5V Output Load 1 TTL Gate and CL = 100pF 3873 PGM T05.1 |
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