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TC74A3-50VCT 数据表(PDF) 4 Page - Microchip Technology |
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TC74A3-50VCT 数据表(HTML) 4 Page - Microchip Technology |
4 / 16 page TC74 DS21462B-page 4 © 2002 Microchip Technology Inc. TC74 ELECTRICAL SPECIFICATIONS (CONTINUED) Electrical Characteristics: VDD =3.3V or 5.0V (Note 5),-40°C ≤ TA ≤ 125°C, CL = 80pF unless otherwise noted. Serial Port AC Timing Symbol Parameter Min Typ. Max Unit Test Conditions fSMB SMBus Clock Frequency 10 — 100 kHz tLOW Low Clock Period 4.7 — — µsec 10% to 10% tHIGH High Clock Period 4 — — µsec 90% to 90% tR tF SMBus Rise Time SMBus Fall Time — — — — 1000 300 nsec nsec 10% to 90% 90% to10% tSU(START) START Condition Setup Time (for repeated START Condition) 4— — µsec 90% SCLK to 10% SDA tH(START) START Condition Hold Time 4 — — µsec tSU-DATA Data In Setup Time 1000 — — nsec tH-DATA Data In Hold Time 1250 — — nsec tSU(STOP) STOP Condition Setup Time 4 — — µsec tIDLE Bus Free Time Prior to New Tran- sition 4.7 — — µsec tPOR Power-on Reset Delay — 500 — µsec VDD ≥ VPOR (Rising Edge) 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. |
类似零件编号 - TC74A3-50VCT |
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类似说明 - TC74A3-50VCT |
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