CST12.0MTWA datasheet(12/153 Pages) STMICROELECTRONICS

12 / 153 page

ST72334J/N, ST72314J/N, ST72124J

12/153

Notes:

1. In the interrupt input column, “eix” defines the associated external interrupt vector. If the weak pull-up

column (wpu) is merged with the interrupt column (int), then the I/O configuration is pull-up interrupt input,

else the configuration is floating interrupt input.

2. In the open drain output column, “T” defines a true open drain I/O (P-Buffer and protection diode to VDD

are not implemented). See Section 12 "I/O PORTS" on page 39 and Section 16.8 "I/O PORT PIN CHAR-

ACTERISTICS" on page 128 for more details.

3. OSC1 and OSC2 pins connect a crystal or ceramic resonator, an external RC, or an external source to

the on-chip oscillator see Section 3 "PIN DESCRIPTION" on page 7 and Section 16.5 "CLOCK AND TIM-

ING CHARACTERISTICS" on page 116 for more details.

59 45 42 35 OSC1 3)

External clock input or Resonator oscilla-

tor inverter input or resistor input for RC

oscillator

60 46 43 36 VDD_3

Digital Main Supply Voltage

61 47 44 37 PE0/TDO

I/O

Port E0

SCI Transmit Data Out

62 48 1 38 PE1/RDI

I/O

Port E1

SCI Receive Data In

Not Connected

Pin n°

Pin Name

Level

Port

Main

function

(after

reset)

Alternate function

Input

Output

CST12.0MTWA Datasheet(PDF) 12 Page - STMicroelectronics