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FM18W08 データシート(PDF) 7 Page - Ramtron International Corporation |
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FM18W08 データシート(HTML) 7 Page - Ramtron International Corporation |
7 / 11 page FM18W08 Rev. 2.0 Dec. 2011 Page 7 of 11 Read Cycle AC Parameters (TA = -40C to + 85C, CL = 30 pF, unless otherwise specified) VDD 2.7 to 3.0V VDD 3.0 to 5.5V Symbol Parameter Min Max Min Max Units Notes tCE Chip Enable Access Time (to data valid) 80 70 ns tCA Chip Enable Active Time 80 70 ns tRC Read Cycle Time 145 130 ns tPC Precharge Time 65 60 ns tAS Address Setup Time 0 0 ns tAH Address Hold Time 15 15 ns tOE Output Enable Access Time 15 12 ns tHZ Chip Enable to Output High-Z 15 15 ns 1 tOHZ Output Enable to Output High-Z 15 15 ns 1 Write Cycle AC Parameters (TA = -40C to + 85C, unless otherwise specified) VDD 2.7 to 3.0V VDD 3.0 to 5.5V Symbol Parameter Min Max Min Max Units Notes tCA Chip Enable Active Time 80 70 ns tCW Chip Enable to Write High 80 70 ns tWC Write Cycle Time 145 130 ns tPC Precharge Time 65 60 ns tAS Address Setup Time 0 0 ns tAH Address Hold Time 15 15 ns tWP Write Enable Pulse Width 50 40 ns tDS Data Setup 40 30 ns tDH Data Hold 0 0 ns tWZ Write Enable Low to Output High Z 15 15 ns 1 tWX Write Enable High to Output Driven 10 10 ns 1 tHZ Chip Enable to Output High-Z 15 15 ns 1 tWS Write Enable Setup 0 0 ns 2 tWH Write Enable Hold 0 0 ns 2 Notes 1 This parameter is periodically sampled and not 100% tested. 2 The relationship between /CE and /WE determines if a /CE- or /WE-controlled write occurs. There is no timing specification associated with this relationship. Data Retention Symbol Parameter Min Max Units Notes TDR @ +85ºC 10 - Years @ +80ºC 19 - Years @ +75ºC 38 - Years |
同様の部品番号 - FM18W08 |
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同様の説明 - FM18W08 |
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