ST7LITE25F2 datasheet(66/166 Pages) STMICROELECTRONICS

Part #	ST7LITE25F2

Description	8-bit microcontroller with single voltage Flash memory, data EEPROM, ADC, Timers, SPI

PDF	166 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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66 / 166 page

I/O ports

ST7LITE20F2 ST7LITE25F2 ST7LITE29F2

66/166

Doc ID 8349 Rev 5

Note:

Refer to the Section 10.7: Device-specific I/O port configuration for device specific

information.

Table 22.

I/O port mode options(1)

Legend:

NI - not implemented

Off - implemented not activated

On - implemented and activated.

Configuration mode

Pull-up

P-buffer

Diodes

to VDD

to VSS

Input

Floating with/without interrupt

Off

Pull-up with/without interrupt

Output

Push-pull

Off

Open drain (logic level)

Off

True open drain

NI(2)

The diode to VDD is not implemented in the true open drain pads. A local protection between the pad and

VOL is implemented to protect the device against positive stress.

Table 23.

I/O configurations

I/O port

Hardware configuration

Input(1)

NOTE 3

condition

Pad

VDD

RPU

External interrupt

Polarity

Databus

Pull-up

Interrupt

DR register access

From

other

pins

source (eix)

selection

condition

Alternate input

Analog input

To on-chip peripheral

Combinational

logic

ST7LITE25F2 Datasheet(PDF) 66 Page - STMicroelectronics

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