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ST72389BW4 Datasheet(PDF) 6 Page - STMicroelectronics |
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ST72389BW4 Datasheet(HTML) 6 Page - STMicroelectronics |
6 / 158 page ST72589BW, ST72389BW 6/158 PIN DESCRIPTION (Cont’d) Legend / Abbreviations: Type: I = input, O = output, S = supply, CK = Clock Output level: LCD = VLCD, VLCD3/4, VLCD1/2, VLCD1/4, or GLCD level. Input level: C = CMOS 0.3VDD/0.7VDD Port configuration capabilities: – Input: float = floating, wpu = weak pull-up, int = interrupt, ana = analog – Output: OD = open drain, T = true open drain, PP = push-pull Note: Reset configuration of each pin is bold. Table 1. Device Pin Description Pin n° Pin Name Level Port Main func tion (after reset) Alternate function Input Output 1 ... 16 S45 ... S60 O LCD LCD Segment Analog Outputs 17 GLCD S LCD Ground Reference Voltage 18 VLCD1/4 S LCD Supply Reference Voltage 19 VLCD1/2 S 20 VLCD3/4 S 21 VLCD S 22 VDDA S Analog Power Supply Voltage 23 AIN0 I X ADC Analog Input 0 24 AIN1 I X ADC Analog Input 1 25 AIN2 I X ADC Analog Input 2 26 AIN3 I X ADC Analog Input 3 27 AIN4 I X ADC Analog Input 4 28 VSSA S Analog Ground Voltage 29 PWM0* or NC O Pulse Width Modulator output 0* 30 PWM1*or NC O Pulse Width Modulator output 1* 31 PWM2* or NC O Pulse Width Modulator output 2* 32 PWM3* or NC O Pulse Width Modulator output 3* 33 RESET I/O Top priority non maskable interrupt. 34 VPP I Must be tied low in user mode. In the pro- gramming mode when available, this pin acts as the programming voltage input VPP. 35 VDD_1 S Digital Main Supply Voltage 36 OSC1 CK These pins connect a parallel-resonant crystal or an external source to the on-chip main oscillator. 37 OSC2 CK 38 VSS_1 S Digital Ground Voltage 39 PA0 I/O C X EI1 X X Port A0 40 PA1 I/O C X X X Port A1 41 PA2 I/O C X X X Port A2 42 PA3 I/O C X X X Port A3 6 |
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