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AD6620AS Datasheet(PDF) 6 Page - Analog Devices |
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AD6620AS Datasheet(HTML) 6 Page - Analog Devices |
6 / 44 page AD6620 –6– REV. A TIMING CHARACTERISTICS (C LOAD = 40 pF All Outputs) Test AD6620AS Parameter (Conditions) Temp Level Min Typ Max Unit MICROPROCESSOR PORT, MODE = 0 MODE0 Input Timing Requirements: tSC Control 1 to CLK Setup Time Full IV 3.0 ns tHC Control1 to CLK Hold Time Full IV 5.0 ns tHA Address 2 to CLK Hold Time Full IV 3.0 ns tZR CS to Data Enabled Time Full IV 5.0 ns tZD CS to Data Disabled Time Full IV 5.0 ns tSAM CS to Address/Data Setup Time Full IV 0.0 ns MODE0 Read Switching Characteristics: tDD CLK to Data Valid Time Full I 10.0 15.0 30.0 ns tRDY RD to RDY Time Full IV 4.0 19.5 ns MODE0 Write Timing Requirements: tSC Control 1 to CLK Setup Time Full IV 3.0 ns tHC Control 1 to CLK Hold Time Full IV 5.0 ns tHM Micro Data 3 to CLK Hold Time Full IV 3.0 ns tHA Address 2 to CLK Hold Time Full IV 3.0 ns tSAM Address/Data Setup Time to CS Full IV 0.0 ns MODE0 Write Switching Characteristics: tRDY RD to RDY Time Full IV 4.0 19.5 ns MICROPROCESSOR PORT, MODE = 1 MODE1 Input Timing Requirements: tSC Control 1 to CLK Setup Time Full IV 3.0 ns tHC Control 1 to CLK Hold Time Full IV 5.0 ns tHA Address2 to CLK Hold Time Full IV 3.0 ns tZR CS to Data Enabled Time Full IV 5.0 ns tZD CS to Data Disabled Time Full IV 5.0 ns tSAM Address/Data Setup Time to CS Full IV 0.0 ns MODE1 Read Switching Characteristics: tDD CLK to Data Valid Time Full I 10.0 30.0 ns tDTACK CLK to DTACK Time Full V 5.5 15.5 ns MODE1 Write Timing Requirements: tSC Control 1 to CLK Setup Time Full IV 0.0 ns tHC Control 1 to CLK Hold Time Full IV 5.0 ns tHM Micro Data 3 to CLK Hold Time Full IV 6.5 ns tHA Address 2 to CLK Hold Time Full IV 3.0 ns tSAM Address/Data Setup Time to CS Full IV 0.0 ns MODE1 Write Switching Characteristic: tDTACK CLK to DTACK Time Full V 5.5 15.5 ns NOTES 1Specification pertains to: R/W ( WR), DS (RD), CS. 2Specification pertains to: A[2:0]. 3Specification pertains to: D[7:0]. Specifications subject to change without notice. |
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