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TC1278 bảng dữ liệu(PDF) 2 Page - Microchip Technology |
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TC1278 bảng dữ liệu(HTML) 2 Page - Microchip Technology |
2 / 12 page TC1278/TC1279 DS21384B-page 2 © 2002 Microchip Technology Inc. 1.0 ELECTRICAL CHARACTERISTICS Absolute Maximum Ratings* Supply Voltage (VCC to GND) ..............................+6.0V RESET, RESET...........................-0.3V to (VCC +0.3V) Input Current, VCC ...............................................20mA Output Current, RESET....................................... 20mA Power Dissipation (TA ≤ 70°C) 3-Pin SOT-23B (derate 4mW/°C above +70°C) .................................................................230mW Operating Temperature Range............. -40°C to +85°C Storage Temperature Range .............. -65°C to +150°C *Stresses above those listed under "Absolute Maximum Ratings" 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. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. TC1278/TC1279 ELECTRICAL SPECIFICATIONS Recommended DC Operating Conditions: TA = -40°C to +85°C unless otherwise noted. Typical values are at TA =+25°C. Symbol Parameter Min Typ Max Units Device Test Conditions VCC Supply Voltage 1.2 — 5.5 V Note 1 DC Electrical Characteristics: TA = -40°C to +85°C unless otherwise noted. Typical values are at TA =+25°C. Symbol Parameter Min Typ Max Units Test Conditions VOL Low Level @ RESET RESET — — 0.4 V TC1278 TC1279 Note 1 IOL Output Current @ 0.4 Volts +8 — — mA Note 2 ICC1 Operating Current — — 0.9 — 2.0 40 mA µA TC1278 TC1279 VCC >VCCTP(MAX) VCC >VCCTP(MAX) ICC2 Operating Current — — — 0.9 40 2.0 µA mA TC1278 TC1279 VCC <VCCTP(MIN) VCC <VCCTP(MIN) VCCTP-5 VCC Trip Point (TC1278/9-5) 4.50 4.625 4.74 V Note 1 VCCTP-10 VCC Trip Point (TC1278/9-10) 4.25 4.375 4.49 V Note 1 VCCTP-15 VCC Trip Point (TC1278/9-15) 4.00 4.125 4.24 V Note 1 COUT Output Capacitance — 9 — pF RP Internal Pull-Up Resistor 3 6 9 k Ω AC Electrical Characteristics: TA = -40°C to +85°C unless otherwise noted. Typical values are at TA =+25°C. Symbol Parameter Min Typ Max Units Test Conditions tRST RESET Active Time 250 350 450 msec tRPD1 VCC Detect to RESET —2 5 µsec TC1279 Figure 3-2 tRPD2 VCC Detect to RESET — 2 5 µsec TC1278 Figure 3-4 tF VCC Slew Rate (4.75V-4.00V) 300 — — µsec Figure 3-2, Figure 3-4 tR VCC Slew Rate (4.00V-4.75V) 0 — — nsec Figure 3-1, Figure 3-3 tRPU1 VCC Detect to RESET 250 350 450 msec TC1279 Figure 3-1 tRPU2 VCC Detect to RESET 250 350 450 msec TC1278 Figure 3-3 Note 1: All voltages referenced to ground. 2: A1k Ω external resistor may be required in some applications for proper operation of the microprocessor reset control circuit when using the TC1279. VCC =1.8V. |
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Mô tả tương tự - TC1278 |
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