ST72321B STMICROELECTRONICS [STMicroelectronics], ST72321B Datasheet - Page 9

• Manufacturer Part Number: ST72321B
• Description: 64/44-pin 8-bit MCU with 32 to 60K Flash/ROM, ADC, five timers, SPI, SCI, I2C interface
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Figure 3. 44-Pin LQFP Package Pinout
AIN0 / PD0
AIN1 / PD1
AIN2 / PD2
AIN3 / PD3
AIN4 / PD4
RDI / PE1
(HS) PB4
PB0
PB1
PB2
PB3
1
2
3
4
5
6
7
8
9
10
11
12 13 14 15 16 17 18 19 20 21 22
44 43 42 41 40 39 38 37 36 35 34
ei2
ei3
ei1
ei0
33
32
31
30
29
28
27
26
25
24
23
(HS) 20mA high sink capability
eix
V
V
PA3 (HS)
PC7 / SS / AIN15
PC6 / SCK / ICCCLK
PC5 / MOSI / AIN14
PC4 / MISO / ICCDATA
PC3 (HS) / ICAP1_B
PC2 (HS) / ICAP2_B
PC1 / OCMP1_B / AIN13
PC0 / OCMP2_B / AIN12
SS_1
DD_1
associated external interrupt vector
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