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ADG799A 数据表(PDF) 7 Page - Analog Devices |
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ADG799A 数据表(HTML) 7 Page - Analog Devices |
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7 / 24 page ![]() ADG799A/ADG799G Rev. 0 | Page 7 of 24 I2C TIMING SPECIFICATIONS VDD = 2.7 V to 5.5 V; GND = 0 V; TA = −40°C to +85°C, unless otherwise noted (see Figure 2 for timing diagram). Table 3. Parameter1 Conditions Min Max Unit Description fSCL Standard mode 100 kHz Serial clock frequency Fast mode 400 kHz High speed mode CB = 100 pF max 3.4 MHz CB = 400 pF max 1.7 MHz t1 Standard mode 4 μs tHIGH, SCL high time Fast mode 0.6 μs High speed mode CB = 100 pF max B 60 ns CB = 400 pF max B 120 ns t2 Standard mode 4.7 μs tLOW, SCL low time Fast mode 1.3 μs High speed mode CB = 100 pF max 160 ns CB = 400 pF max 320 ns t3 Standard mode 250 ns tSU;DAT, data setup time Fast mode 100 ns High speed mode 10 ns t42 Standard mode 0 3.45 μs tHD;DAT, data hold time Fast mode 0 0.9 μs High speed mode CB = 100 pF max 0 703 ns CB = 400 pF max 0 150 ns t5 Standard mode 4.7 μs tSU;STA, setup time for a repeated start condition Fast mode 0.6 μs High speed mode 160 ns t6 Standard mode 4 μs tHD;STA, hold time (repeated) start condition Fast mode 0.6 μs High speed mode 160 ns t7 Standard mode 4.7 μs tBUF, bus free time between a stop and a start condition Fast mode 1.3 μs t8 Standard mode 4 μs tSU;STO, setup time for stop condition Fast mode 0.6 μs High speed mode 160 ns t9 Standard mode 1000 ns tRDA, rise time of SDA signal Fast mode 20 + 0.1 CB B 300 ns High speed mode CB = 100 pF max 10 80 ns CB = 400 pF max 20 160 ns t10 Standard mode 300 ns tFDA, fall time of SDA signal Fast mode 20 + 0.1 CB B 300 ns High speed mode CB = 100 pF max 10 80 ns CB = 400 pF max 20 160 ns t11 Standard mode 1000 ns tRCL, rise time of SCL signal Fast mode 20 + 0.1 CB B 300 ns High speed mode CB = 100 pF max 10 40 ns CB = 400 pF max 20 80 ns |
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