ST7LITE20F2 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST7LITE20F2

8-bit microcontroller with single voltage Flash memory, data EEPROM, ADC, Timers, SPI

STMicroelectronics 

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Pin description

2

Pin description

ST7LITE20F2 ST7LITE25F2 ST7LITE29F2

Figure 2. 20-pin SO package pinout

VSS

VDD

RESET

SS/AIN0/PB0

SCK/AIN1/PB1

MISO/AIN2/PB2

MOSI/AIN3/PB3

CLKIN/AIN4/PB4

AIN5/PB5

IN/AIN6/PB6

1

2

3

4

5 ei3

6

7

8 ei2

9

10

20

19

18

ei0 17

16

15

14

ei1 13

12

11

OSC1/CLKIN

OSC2

PA0 (HS)/LTIC

PA1 (HS)/ATIC

PA2 (HS)/ATPWM0

PA3 (HS)/ATPWM1

PA4 (HS)/ATPWM2

PA5 (HS)/ATPWM3/ICCDATA

PA6/MCO/ICCCLK/BREAK

PA7(HS)

(HS) 20mA high sink capability

eix associated external interrupt vector

Figure 3. 20-pin DIP package pinout

MISO/AIN2/PB2

MOSI/AIN3/PB3

CLKIN/AIN4/PB4

AIN5/PB5

AIN6/PB6

PA7(HS)

MCO/ICCCLK/BREAK/PA6

ATPWM3/ICCDATA/PA5(HS)

ATPWM2/PA4(HS)

ATPWM1/PA3(HS)

1

ei3

20 SCK/AIN1/PB1

ei3

2

19 SS/AIN0/PB0

3

ei2

4

5

6

18 RESET

17 VDD

16 VSS

15 OSC1/CLKIN

7 ei1

8

14 OSC2

13 PA0(HS)/LTIC

9

ei0 12 PA1(HS)/ATIC

10 ei0

11 PA2(HS)/ATPWM0

(HS) 20mA high sink capability

eix associated external interrupt vector

Legend and abbreviations for device pin description (seeTable 2 below):

● Type:

– I = input

– O = output

– S = supply

● In/Output level:

– CT= CMOS 0.3VDD/0.7VDD with input trigger

● Output level:

– HS = 20mA high sink (on N-buffer only)

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Doc ID 8349 Rev 5

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