ST72F63 STMICROELECTRONICS [STMicroelectronics], ST72F63 Datasheet - Page 28

• Manufacturer Part Number: ST72F63
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST7263B
I/O PORTS (Cont’d)
Table 10. PA1, PA2 Description
Figure 20. PA1, PA2 Configuration
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PA1
PA2
*Reset State
PORT A
without pull-up
without pull-up
Input*
DR SEL
DDR SEL
LATCH
LATCH
DDR
ALTERNATE
OUTPUT
DR
Very High Current open drain
Very High Current open drain
I / O
1
0
ALTERNATE ENABLE
1
0
Output
ALTERNATE ENABLE
CMOS SCHMITT TRIGGER
SDA (I²C data)
SCL (I²C clock)
Signal
V
SS
N-BUFFER
Alternate Function
I²C enable
I²C enable
Condition
PAD