Datenblatt-Suchmaschine für elektronische Bauteile |
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MCP7940MTIP Datenblatt(PDF) 4 Page - Microchip Technology |
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MCP7940MTIP Datenblatt(HTML) 4 Page - Microchip Technology |
4 / 38 page MCP7940M DS22292A-page 4 Preliminary 2012 Microchip Technology Inc. TABLE 1-2: AC CHARACTERISTICS AC CHARACTERISTICS Electrical Characteristics: Industrial (I): VCC = +1.8V to 5.5V TA = -40°C to +85°C Param. No. Symbol Characteristic Min. Max. Units Conditions 1FCLK Clock frequency — — 100 400 kHz 1.8V VCC < 2.5V 2.5V VCC 5.5V 2THIGH Clock high time 4000 600 — — ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 3TLOW Clock low time 4700 1300 — — ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 4TR SDA and SCL rise time (Note 1) — — 1000 300 ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 5TF SDA and SCL fall time (Note 1) — — 1000 300 ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 6THD:STA Start condition hold time 4000 600 — — ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 7TSU:STA Start condition setup time 4700 600 — — ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 8THD:DAT Data input hold time 0 — ns 9TSU:DAT Data input setup time 250 100 — — ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 10 TSU:STO Stop condition setup time 4000 600 — — ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 11 TAA Output valid from clock — — 3500 900 ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 12 TBUF Bus free time: Time the bus must be free before a new transmission can start 4700 1300 — — ns 1.8V VCC < 2.5V 2.5V VCC 5.5V 13 TSP Input filter spike suppression (SDA and SCL pins) —50 ns (Note 1 and Note 2) Note 1: Not 100% tested. 2: The combined TSP and VHYS specifications are due to new Schmitt Trigger inputs, which provide improved noise spike suppression. This eliminates the need for a TI specification for standard operation. |
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