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ST7LITE49M Datasheet(PDF) 73 Page - STMicroelectronics

No. de pieza ST7LITE49M
Descripción Electrónicos  8-bit MCU with single voltage Flash memory data EEPROM, ADC, 8/12-bit timers, and I²C interface
PDF  188 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7LITE49M Datasheet(HTML) 73 Page - STMicroelectronics

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ST7LITE49M
I/O ports
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Table 23.
I/O port mode options(1)
1.
Off means implemented not activated, On means implemented and activated.
Configuration mode
Pull-Up
P-Buffer
Diodes
to VDD
to VSS
Input
Floating with/without Interrupt
Off
Off
On
On
Pull-up with Interrupt
On
Output
Push-pull
Off
On
Open Drain (logic level)
Off
Table 24.
I/O port configuration
Hardware configuration
1.
When the I/O port is in input configuration and the associated alternate function is enabled as an output,
reading the DR register will read the alternate function output status.
2.
When the I/O port is in output configuration and the associated alternate function is enabled as an input,
the alternate function reads the pin status given by the DR register content.
CONDITION
PAD
EXTERNAL INTERRUPT
POLARITY
DATA BUS
INTERRUPT
DR REGISTER ACCESS
W
R
FROM
OTHER
PINS
SOURCE (eix)
SELECTION
DR
REGISTER
ALTERNATE INPUT
ANALOG INPUT
To on-chip peripheral
COMBINATIONAL
LOGIC
PAD
DATA BUS
DR
DR REGISTER ACCESS
R/W
REGISTER
PAD
DATA BUS
DR
DR REGISTER ACCESS
R/W
ALTERNATE
ALTERNATE
ENABLE
OUTPUT
REGISTER
BIT
From on-chip periphera
l



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