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TC74A1-3.3VAT Datasheet(PDF) 3 Page - Microchip Technology |
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TC74A1-3.3VAT Datasheet(HTML) 3 Page - Microchip Technology |
3 / 18 page 2001-2012 Microchip Technology Inc. DS21462D-page 3 TC74 START Condition Setup Time (for repeated START Condition) tSU(START) 4.0 — — µsec 90% SCLK to 10% SDA START Condition Hold Time tH(START) 4.0 — — µsec Data In Setup Time tSU-DATA 1000 — — nsec Data In Hold Time tH-DAT 1250 — — nsec STOP Condition Setup Time tSU(STOP) 4.0 — — µsec Bus Free Time Prior to New Transition tIDLE 4.7 — — µsec Power-on Reset Delay tPOR —500 — µsec VDD VPOR (Rising Edge) DC CHARACTERISTICS (CONTINUED) Electrical Specifications: Unless otherwise noted, VDD = 3.3V for TC74AX-3.3VXX and VDD = 5.0V for TC74AX-5.0VXX, -40°C TA 125°C. Note 5 Parameters Sym Min Typ Max Units Conditions Note 1: Operating current is an average value integrated over multiple conversion cycles. Transient current may exceed this specification. 2: Maximum ensured conversion time after Power-on Reset (POR to DATA_RDY) is 250 msec. 3: Output current should be minimized for best temperature accuracy. Power dissipation within the TC74 will cause self-heating and temperature drift error. 4: SDA and SCLK must be connected to VDD or GND. 5: VDD = 3.3V for TC74AX -3.3 VXX. VDD = 5.0V for TC74AX -5.0 VXX. All part types of the TC74 will operate properly over the wider power supply range of 2.7V to 5.5V. Each part type is tested and specified for rated accuracy at its nominal supply voltage. As VDD varies from the nominal value, accuracy will degrade 1°C/V of VDD change. |
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