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TC74A0-50VCT Datasheet(PDF) 3 Page - Microchip Technology |
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TC74A0-50VCT Datasheet(HTML) 3 Page - Microchip Technology |
3 / 16 page © 2002 Microchip Technology Inc. DS21462B-page 3 TC74 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings* Supply Voltage (VDD) ............................................ +6V Voltage On Any Pin ....... (GND – 0.3V) to (VDD +0.3V) Current On Any Pin .......................................... ±50 mA Operating Temperature (TA)........................ See Below Storage Temperature (TSTG) .............. -65°C to +150°C *Stresses above those listed under "Absolute Maximum Rat- ings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Expo- sure to Absolute Maximum Rating conditions for extended periods may affect device reliability. TC74 ELECTRICAL SPECIFICATIONS Electrical Characteristics: VDD =3.3V or 5.0V (Note 5),-40°C ≤ TA ≤ 125°C, unless otherwise noted. Symbol Parameter Min Typ. Max Unit Test Conditions Power Supply VPOR Power-on Reset Threshold 1.2 — 2.2 V VDD Falling Edge or Rising Edge IDD Operating Current — 200 350 µAVDD =5.5V Serial Port Inactive (Note 1) IDD-STANDBY Standby Supply Current — 5 10 µAV DD =3.3V Serial Port Inactive (Note 1) Temperature to Bits Converter TERR Temperature Accuracy TC74A -2 -3 — —+2 — +2 °C +25°C <TA <+85°C 0°C < TA < +125°C -40°C < TA <0°C CR Conversion Rate 4 8 — Sps (Note 2) Serial Port Interface VIH Logic Input High 0.8 x VDD —— V VIL Logic Input Low — — 0.2 x VDD V VOL SDA Output Low — — — — 0.4 0.6 V V IOL =3mA IOL =6mA (Note 3) CIN Input Capacitance SDA, SCL — 5 — pF ILEAK I/O Leakage -1 0.1 1 µA 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 TC74X -3.3VCT. VDD = 5.0V for TC74X -5.0VCT. 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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