ST72T631K4M1 STMicroelectronics, ST72T631K4M1 Datasheet - Page 28

• Manufacturer Part Number: ST72T631K4M1
• Description: Microcontrollers (MCU) OTP EPROM 16K USB/SC
• Manufacturer: STMicroelectronics

Specifications of ST72T631K4M1

• Data Bus Width: 8 bit
• Program Memory Type: EPROM
• Program Memory Size: 16 KB
• Data Ram Size: 512 B
• Interface Type: I2C, SCI, USB
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 19
• Number Of Timers: 2
• Operating Supply Voltage: 4 V to 5.5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: SO-34
• Minimum Operating Temperature: 0 C
• On-chip Adc: 8 bit
• Lead Free Status / Rohs Status: No

ST7263
I/O PORTS (Cont’d)
Table 10. PA1, PA2 Description
Figure 19. 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