ST6201BN3 View Datasheet(PDF) - STMicroelectronics

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Description

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ST6201BN3

8-bit MCUs with A/D converter,two timers, oscillator safeguard & safe reset

STMicroelectronics 

I/O PORTS (Cont’d)

Figure 23. I/O Port Block Diagram

RESET

DATA

DIRECTION

REGISTER

ST6

INTERNAL

BUS

DATA

REGISTER

OPTION

REGISTER

ST6200C ST6201C ST6203C

PULL-UP

VDD

VDD

VDD

Pxx I/O Pin

N-BUFFER

P-BUFFER

CLAMPING

DIODES

TO INTERRUPT

*

TO ADC

* Depending on device. See device summary on page 1.

CMOS

SCHMITT

TRIGGER

Table 8. I/O Port Configurations

DDR

OR

0

0

0

0

0

1

0

1

1

0

1

1

DR

Mode

0

Input

1

Input

0

Input

1

Input

x

Output

x

Output

Note: x = Don’t care

Option

With pull-up, no interrupt

No pull-up, no interrupt

With pull-up and with interrupt

Analog input (when available)

Open-drain output (20mA sink when available)

Push-pull output (20mA sink when available)

Doc ID 4563 Rev 5

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