ST72334J4B7(2003) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72334J4B7
(Rev.:2003)

8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES

STMicroelectronics 

ST72334J/N, ST72314J/N, ST72124J

Pin n°

Pin Name

59 45 42 35 OSC1 3)

60 46 43 36 VDD_3

61 47 44 37 PE0/TDO

62 48 1 38 PE1/RDI

63

NC

64

NC

Level

I

S

I/O CT

I/O CT

Port

Input

Main

Output function

(after

reset)

Alternate function

XX

XX

External clock input or Resonator oscilla-

tor inverter input or resistor input for RC

oscillator

Digital Main Supply Voltage

X X Port E0 SCI Transmit Data Out

X X Port E1 SCI Receive Data In

Not Connected

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.

12/153

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