ST72321B Datasheet, PDF (10/187 Pages) STMicroelectronics – 64/44-pin 8-bit MCU with 32 to 60K Flash/ROM, ADC, five timers, SPI, SCI, I2C interface

Figure 4. 32-Pin LQFP Package Pinout
V_AREF
V_SSA
MCO / AIN8 / PF0
BEEP / (HS) PF1
OCMP1_A / AIN10 / PF4
ICAP1_A / (HS) PF6
EXTCLK_A / (HS) PF7
AIN12 / OCMP2_B / PC0
32 31 30 29 28 27 26 25
1
24
ei3 ei2
2
23
3
22
ei1
4
21
5
20
6
19
7
18
8
ei0 ₁₇
9 10 11 12 13 14 15 16
OSC1
OSC2
V_SS_2
RESET
V_PP / ICCSEL
PA7 (HS) / SCLI
PA6 (HS) / SDAI
PA4 (HS)
(HS) 20mA high sink capability
eix associated external interrupt vector
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