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STLC2415 数据表(PDF) 6 Page - STMicroelectronics |
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STLC2415 数据表(HTML) 6 Page - STMicroelectronics |
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6 / 22 page ![]() STLC2415 6/22 Table 9. Pin List Name Pin # Description DIR PU/PD VDD PAD Clock and test pins xin B18 System clock I V1 CMOS, 3.3V TTL compatible schmitt trigger nreset A18 Reset I nrp A17 External flash reset I V2 nwp H3 Flash Write Protect I V2 CMOS 1.8V sys_clk_req C18 System clock request I/O V1 CMOS, 3.3V TTL compatible, 2mA tristate slew rate control lpo_clk_p V9 Low power oscillator + / Slow clock input I (1) V2 lpo_clk_n V10 Low power oscillator - O int1 C14 External Interrupt used also as external wakeup I (1) V1 CMOS, 3.3V TTL compatible schmitt trigger int2 C15 Second external interrupt I (1) boot T10 Select external boot from EMI or internal from ROM I (1) V2 CMOS 1.8V SPI interface spi_frm A2 Synchronous Serial Interface frame sync I/O V1 CMOS, 3.3V TTL compatible, 2mA tristate slew rate control schmitt trigger spi_clk A1 Synchronous Serial Interface clock I/O spi_txd B1 Synchronous Serial Interface transmit data O/t V1 CMOS, 3.3V TTL compatible, 2mA slew rate control spi_rxd C1 Synchronous Serial Interface receive data I (1) V1 CMOS, 3.3V TTL compatible schmitt trigger UART interface uart1_txd A15 Uart1 transmit data O/t V1 CMOS, 3.3V TTL compatible, 2mA slew rate control uart1_rxd A16 Uart1 receive data I (2) V1 CMOS, 3.3V TTL compatible schmitt trigger uart2_o1 C7 Uart2 modem output O V1 CMOS, 3.3V TTL compatible, 2mA slew rate control uart2_o2 A6 Uart2 modem output O/t V1 CMOS, 3.3V TTL compatible, 2mA slew rate control uart2_i1 A7 Uart2 modem input I (2) V1 CMOS, 3.3V TTL compatible uart2_i2 C8 Uart2 modem input I (2) V1 uart2_io1 C6 Uart2 modem input/output I/O (2) V1 CMOS, 3.3V TTL compatible, 2mA tristate slew rate control uart2_io2 C5 Uart2 modem input/output I/O (2) V1 |
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