ST72411R1 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST72411R1

8-BIT MCU WITH SMARTCARD INTERFACE, LCD DRIVER, 8-BIT TIMER, SAFE RESET AND SUPPLY MONITORING

STMicroelectronics 

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ST72411R

Pin n°

Pin Name

29 VSSA

30 VSS

31 OSCIN

32 NC

33 ... 36 COM0 ... COM3

37 ... 64 SEG0 ... SEG27

Level

S

S

I

Not Connected

O

O

Port

Inpu t

Outp ut

Main

fun ction

(after

reset)

Alternate function

Analog Ground Voltage

Digital Ground Voltage

External main clock source

LCD Common outputs

LCD Segment outputs

Note:

1) There is no protection diode referenced to VDD on the VREF pad. If the microcontroller is not powered-

on at the main VDD supply, it is possible to have no power consumption (other than leakage currents - see

electrical parameters), while applying power to VREF.

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