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LTC2753 数据表(PDF) 5 Page - Linear Technology |
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LTC2753 数据表(HTML) 5 Page - Linear Technology |
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5 / 24 page  LTC2753 5 2753f SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS t17 UPD Valid to I/O Propagation Delay CL = 10pF ● 26 ns t18 D/S Valid to READ Rising Edge (Note 10) ● 7ns t19 READ Rising Edge to UPD Rising Edge No Update ● 0ns t20 UPD Falling Edge to READ Falling Edge No Update ● 0ns t22 READ Falling Edge to UPD Rising Edge (Note 10) ● 7ns t23 I/O Bus Hi-Z to READ Rising Edge (Note 10) ● 0ns t24 READ Falling Edge to I/O Bus Active (Note 10) ● 20 ns CLR Timing t25 CLR Pulse Width Low ● 15 ns VDD = 2.7V to 3.3V Write and Update Timing t1 I/O Valid to WR Rising Edge Set-Up ● 15 ns t2 I/O Valid to WR Rising Edge Hold ● 15 ns t3 WR Pulse Width Low ● 30 ns t4 UPD Pulse Width High ● 30 ns t5 UPD Falling Edge to WR Falling Edge No Data Shoot-Through ● 0ns t6 WR Rising Edge to UPD Rising Edge (Note 10) ● 0ns t7 D/S Valid to WR Falling Edge Set-Up Time ● 7ns t8 WR Rising Edge to D/S Valid Hold Time ● 7ns t9 A1-A0 Valid to WR Falling Edge Setup Time ● 7ns t10 WR Rising Edge to A1-A0 Valid Hold Time ● 0ns t11 A1-A0 Valid to UPD Rising Edge Setup Time ● 15 ns t12 UPD Falling Edge to A1-A0 Valid Hold Time ● 15 ns Readback Timing t13 WR Rising Edge to Read Rising Edge ● 10 ns t14 Read Falling Edge to WR Falling Edge (Note 10) ● 35 ns t15 Read Rising Edge to I/O Propagation Delay CL = 10pF ● 53 ns t26 A1-A0 Valid to READ Rising Edge Setup Time ● 35 ns t27 READ Falling to A1-A0 Valid Hold Time (Note 10) ● 0ns t17 UPD Valid to I/O Propagation Delay CL = 10pF ● 43 ns t18 D/S Valid to Read Rising Edge (Note 10) ● 12 ns t19 Read Rising Edge to UPD Rising Edge No Update ● 0ns t20 UPD Falling Edge to Read Falling Edge No Update ● 0ns TIMING CHARACTERISTICS The ● denotes specifications that apply over the full operating temperature range, otherwise specifications are at TA = 25°C. |
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