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FM24C256-SE Fiches technique(PDF) 9 Page - Ramtron International Corporation |
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FM24C256-SE Fiches technique(HTML) 9 Page - Ramtron International Corporation |
9 / 12 page FM24C256 Rev 3.1 May 2005 Page 9 of 12 AC Parameters (TA = -40° C to + 85° C, VDD = 4.5V to 5.5V, CL = 100 pF unless otherwise specified) Symbol Parameter Min Max Min Max Min Max Units Notes fSCL SCL Clock Frequency 0 100 0 400 0 1000 kHz tLOW Clock Low Period 4.7 1.3 0.6 µs tHIGH Clock High Period 4.0 0.6 0.4 µs tAA SCL Low to SDA Data Out Valid 3 0.9 0.55 µs tBUF Bus Free Before New Transmission 4.7 1.3 0.5 µs tHD:STA Start Condition Hold Time 4.0 0.6 0.25 µs tSU:STA Start Condition Setup for Repeated Start 4.7 0.6 0.25 µs tHD:DAT Data In Hold 0 0 0 ns tSU:DAT Data In Setup 250 100 100 ns tR Input Rise Time 1000 300 300 ns 1 tF Input Fall Time 300 300 100 ns 1 tSU:STO Stop Condition Setup 4.0 0.6 0.25 µs tDH Data Output Hold (from SCL @ VIL) 0 0 0 ns tSP Noise Suppression Time Constant on SCL, SDA 50 50 50 ns Notes : All SCL specifications as well as start and stop conditions apply to both read and write operations. 1 This parameter is periodically sampled and not 100% tested. Capacitance (TA = 25° C, f=1.0 MHz, VDD = 5V) Symbol Parameter Max Units Notes CI/O Input/Output Capacitance (SDA) 8 pF 1 CIN Input Capacitance 6 pF 1 Notes 1 This parameter is periodically sampled and not 100% tested. AC Test Conditions Equivalent AC Load Circuit Input Pulse Levels 0.1 VDD to 0.9 VDD Input rise and fall times 10 ns Input and output timing levels 0.5 VDD 5.5V Output 1700 Ω 100 pF |
Numéro de pièce similaire - FM24C256-SE |
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Description similaire - FM24C256-SE |
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