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AT24C256C-W11 Datasheet(PDF) 5 Page - ATMEL Corporation |
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AT24C256C-W11 Datasheet(HTML) 5 Page - ATMEL Corporation |
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5 / 21 page  AT24C256C [Preliminary] 5 8568A–SEEPR–9/09 Table 4. AC Characteristics (Industrial Temperature) Applicable over recommended operating range from: T AI = − 40°C to +85°C, VCC = +1.7V to +5.5V, CL = 100 pF (unless otherwise noted). Test conditions are listed in Note 2. Symbol Parameter 1.7-volt 2.5, 5.0-volt Units Min Max Min Max f SCL Clock Frequency, SCL 400 1000 kHz t LOW Clock Pulse Width Low 1.3 0.4 μs t HIGH Clock Pulse Width High 0.6 0.4 μs t I Noise Suppression Time (1) 100 50 ns t AA Clock Low to Data Out Valid 0.05 0.9 0.05 0.55 μs t BUF Time the bus must be free before a new transmission can start (1) 1.3 0.5 μs t HD.STA Start Hold Time 0.6 0.25 μs t SU.STA Start Set-up Time 0.6 0.25 μs t HD.DAT Data In Hold Time 0 0 μs t SU.DAT Data In Set-up Time 100 100 ns t R Inputs Rise Time (1) 0.3 0.3 μs t F Inputs Fall Time (1) 300 100 ns t SU.STO Stop Set-up Time 0.6 0.25 μs t DH Data Out Hold Time 50 50 ns t WR Write Cycle Time 5 5 ms Endurance (1) 25°C, Page Mode, 3.3V 1,000,000 Write Cycles Note: 1. This parameter is ensured by characterization and is not 100% tested. 2. AC measurement conditions: R L (connects to VCC): 1.3 k Ω (2.5V, 5.5V), 10 kΩ (1.7V) Input pulse voltages: 0.3 V CC to 0.7 VCC Input rise and fall times: ≤ 50 ns Input and output timing reference voltages: 0.5 V CC |
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