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TC530 データシート(PDF) 5 Page - Microchip Technology |
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TC530 データシート(HTML) 5 Page - Microchip Technology |
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5 / 22 page  © 2002 Microchip Technology Inc. DS21433B-page 5 TC530/TC534 2.0 PIN DESCRIPTIONS Thedescriptionsof the pins arelistedinTable2-1 TABLE 2-1: PIN FUNCTION TABLE Pin Number (TC530) 28-Pin PDIP Pin Number (TC530) 28-Pin SOIC Pin Number (TC534) 40-Pin PDIP Pin Number (TC534) 44-Pin PQFP Symbol Description 11 1 40 VSS Analog output. Negative power supply converter output and reservoir capacitor connection. This output can be used to provide negative bias to other devices in the system. 22 2 41 CINT Analog output. Integrator capacitor connection and integrator output. 33 3 42 CAZ Analog input. Auto Zero capacitor connection. 4 4 4 43 BUF Analog output. Integrator capacitor connection and voltage buffer output. 5 5 5 2 ACOM Analog input. This pin is ground for all of the analog switches in the A/D converter. It is grounded for most applications. ACOM and the input common pin (VIN-or CHX-) should be within the common mode range, CMR. 66 6 3 CREF- Analog Input. Reference cap negative connection. 77 7 4 CREF+ Analog Input. Reference cap positive connection. 88 8 5 VREF- Analog Input. External voltage reference negative connec- tion. 99 9 6 VREF+ Analog Input. External voltage reference positive connec- tion. Not Used Not Used 10 7 CH4- Analog Input. Multiplexer channel 4 negative differential Not Used Not Used 11 8 CH3- Analog Input. Multiplexer channel 3 negative differential Not Used Not Used 12 9 CH2- Analog Input. Multiplexer channel 2 negative differential Not Used Not Used 13 10 CH1- Analog Input. Multiplexer channel 1 negative differential Not Used Not Used 14 11 CH4+ Analog Input. Multiplexer channel 4 positive differential Not Used Not Used 15 12 CH3+ Analog Input. Multiplexer channel 3 positive differential Not Used Not Used 16 13 CH2+ Analog Input. Multiplexer channel 2 positive differential Not Used Not Used 17 14 CH1+ Analog Input. Multiplexer channel 1 positive differential 10 10 Not Used Not Used VN- Analog Input. Negative differential analog voltage input. 11 11 Not Used Not Used VIN+ Analog Input. Positive differential analog voltage input. 12 12 18 15 DGND Analog Input. Ground connection for serial port circuit. Not Used Not Used 19 16 A1 Logic Level Input. Multiplexer address MSB. Not Used Not Used 20 17 A0 Logic Level Input. Multiplexer address LSB. 14 14 21 18 OSCOUT Analog Input. Timebase for state machine. This pin con- nects to one side of an AT-cut crystal having an effective series resistance of 100 Ω (typ) and a parallel capacitance of 20pF. If an external frequency source is used to clock the TC530/TC534 this pin must be left floating. 15 15 22 19 OSCIN Analog Input. This pin connects to the other side of the crys- tal described in OSCOUT above. The TC530/TC534 may also be clocked from an external frequency source con- nected to this pin. The external frequency source must be a pulse wave form with a minimum 30% duty cycle and rise and fall times 15nsec (Max). If an external frequency source is used, OSCOUT must be left floating. A maximum operat- ing frequency of 2MHz (crystal) or 4MHz (external clock source) is permitted. |
同様の部品番号 - TC530 |
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同様の説明 - TC530 |
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