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ST72E121 Datasheet(PDF) 5 Page - STMicroelectronics |
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ST72E121 Datasheet(HTML) 5 Page - STMicroelectronics |
5 / 92 page 5/92 ST72E121 ST72T121 1.2 PIN DESCRIPTION Figure 2. 44-Pin Thin QFP Package Pinout Figure 3. 42-Pin Shrink DIP Package Pinout 1 2 3 4 5 6 7 8 9 10 11 33 32 31 30 29 28 27 26 25 24 23 44 43 42 41 40 39 38 37 36 35 34 12 13 14 15 16 17 18 19 20 21 22 PC1/OCMP1_B PC2/ICAP2_B PC0/OCMP2_B PC3/ICAP1_B PC4/MISO PC5/MOSI PB4 PD0 PD1 PD2 PD3 PD4 PC7/SS PC6/SCK VSS_1 VDD_1 PA3 PB3 PB2 PB1 PB0 PE1/RDI (EI3) (EI2) (EI2) (EI2) (EI2) (EI0) 1. V PP on EPR OM/OTP only 15 16 17 18 19 20 21 CLKOUT/PF0 PF1 PF2 OCMP1_A/PF4 ICAP1_A/PF6 PC1/OCMP1_B PC2/ICAP2_B EXTCLK_A/PF7 RESET TEST/VPP 1) PA7 PA6 PA5 PC7/SS PC6/SCK 28 27 26 25 24 23 22 PC0/OCMP2_B PC3/ICAP1_B PC4/MISO PC5/MOSI PA4 VSS_1 VDD_1 PA3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 29 30 31 32 33 34 PB4 PD0 PD5 PD1 PD2 PD3 PB3 PB2 PB1 PB0 PE0/TD0 VDD_2 OSCIN OSCOUT VSS_2 42 41 40 39 38 37 36 35 PD4 VDD_3 VSS_3 PE1/RDI (EI3) (EI1) (EI1) (EI1) (EI0) (EI2) (EI2) (EI2) (EI2) 1. V PP on EPR OM/OTP only 5 |
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