ST72321B datasheet(10/187 Pages) STMICROELECTRONICS

Part #	ST72321B

Description	64/44-pin 8-bit MCU with 32 to 60K Flash/ROM, ADC, five timers, SPI, SCI, I2C interface

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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Figure 4. 32-Pin LQFP Package Pinout

32 31 30 29 28 27 26 25

24

23

22

21

20

19

18

17

9 1011 12 13 1415 16

1

2

3

4

5

6

7

8

ei1

ei3

ei0

OCMP1_A / AIN10 / PF4

ICAP1_A / (HS) PF6

EXTCLK_A / (HS) PF7

AIN12 / OCMP2_B / PC0

VAREF

VSSA

MCO / AIN8 / PF0

BEEP / (HS) PF1

VPP / ICCSEL

PA7 (HS) / SCLI

PA6 (HS) / SDAI

PA4 (HS)

OSC1

OSC2

VSS_2

RESET

ei2

eix

associated external interrupt vector

(HS) 20mA high sink capability

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