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ST7LITE49M Fiches technique(PDF) 113 Page - STMicroelectronics

No de pièce ST7LITE49M
Description  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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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7LITE49M Fiches technique(HTML) 113 Page - STMicroelectronics

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On-chip peripherals
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When the I2C cell is enabled, the SDA and SCL ports must be configured as floating inputs.
In this case, the value of the external pull-up resistor used depends on the application.
When the I2C cell is disabled, the SDA and SCL ports revert to being standard I/O port pins.
Figure 56.
I2C interface block diagram
DATA REGISTER (DR)
DATA SHIFT REGISTER
COMPARATOR
OWN ADDRESS REGISTER 1 (OAR1)
CLOCK CONTROL REGISTER (CCR)
STATUS REGISTER 1 (SR1)
CONTROL REGISTER (CR)
CONTROL LOGIC
STATUS REGISTER 2 (SR2)
INTERRUPT
CLOCK CONTROL
DATA CONTROL
SCL or SCLI
SDA or SDAI
OWN ADDRESS REGISTER 2 (OAR2)



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