ST6201CB6 datasheet(5/70 Pages) STMICROELECTRONICS

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ST62T00C/T01C ST62T03C/E01C

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. Internal pull-up is provid-

ed at this pin.

TEST/V

PP. The TEST must be held at VSS for nor-

mal operation. If TEST pin is connected to a

+12.5V level during the reset phase, the EPROM

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. The user can select as op-

tion the availability of an on-chip pull-up at this pin.

PA1-PA3. These 3 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. PA1-

PA3 can also sink 20mA for direct LED driving.

PB0..PB1,PB3,PB5-PB7. These 6 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. PB3,PB5..-PB7 can be used as

analog inputs for the A/D converter on the

ST62T00C, T01C and E01C.

Figure 2. ST62T03C,T00C, T01C, and E01C Pin

Configuration

VDD

OSCin

OSCout

NMI

VPP/TEST

RESET

Ain*/PB7

Ain*/PB6

VSS

PA1/20 mA Sink

PA2/20 mA Sink

PA3/20 mA Sink

PB0

PB1

PB3/Ain*

PB5/Ain*

*Analog input availability depend on device

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