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ST62T62CM6 데이터시트(PDF) 6 Page - STMicroelectronics |
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6 / 78 page 6/78 ST62T52C ST62T62C/E62C 1.2 PIN DESCRIPTIONS VDD and VSS. Power is supplied to the MCU via these two pins. VDD is the power connection and VSS is the ground connection. OSCin and OSCout. These pins are internally connected to the on-chip oscillator circuit. A quartz crystal, a ceramic resonator or an external clock signal can be connected between these two pins. The OSCin pin is the input pin, the OSCout pin is the output pin. RESET. The active-low RESET pin is used to re- start the microcontroller. TEST/VPP. The TEST must be held at V SS for nor- mal operation. If TEST pin is connected to a +12.5V level during the reset phase, the EPROM/OTP programming Mode is entered. NMI. The NMI pin provides the capability for asyn- chronous interruption, by applying an external non maskable interrupt to the MCU. The NMI input is falling edge sensitive. It is provided with an on-chip pullup resistor (if option has been enabled), and Schmitt trigger characteristics. PA4-PA5. These 2 lines are organized as one I/O port (A). Each line may be configured under soft- ware control as inputs with or without internal pull- up resistors, interrupt generating inputs with pull- up resistors, open-drain or push-pull outputs, ana- log inputs for the A/D converter. PB0, PB2-PB3, PB6-PB7. These 5 lines are or- ganized as one I/O port (B). Each line may be con- figured under software control as inputs with or without internal pull-up resistors, interrupt generat- ing inputs with pull-up resistors, open-drain or push-pull outputs. PB6/ARTIMin and PB7/ARTI- Mout are either Port B I/O bits or the Input and Output pins of the ARTimer. Reset state of PB2-PB3 pins can be defined by op- tion either with pull-up or high impedance. PB0, PB2-PB3, PB6-PB7 scan also sink 30mA for direct LED driving. PC2-PC3. These 2 lines are organized as one I/O port (C). Each line may be configured under soft- ware control as input with or without internal pull- up resistor, interrupt generating input with pull-up resistor, analog input for the A/D converter, open- drain or push-pull output. Figure 2. ST62T52C, E62C and T62C Pin Configuration 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PB0 VPP/TEST PB2 PB3 VDD ARTIMin/PB6 PC2/Ain PC3/Ain PA5/Ain PA4/Ain ARTIMout/PB7 VSS NMI RESET OSCout OSCin |
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