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M58-ZC Datasheet(PDF) 17 Page - Nuvoton Technology Corporation |
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M58-ZC Datasheet(HTML) 17 Page - Nuvoton Technology Corporation |
17 / 71 page ![]() NuMicro ™ M058/M0516BN Datasheet Publication Release Date: Mar. 19, 2012 - 17 - Revision V1.01 5.3 Pin Description Pin number Symbol Alternate Function Type [1] Description QFN33 LQFP48 1 2 3 11 16 XTAL1 I (ST) CRYSTAL1: This is the input pin to the internal inverting amplifier. The system clock is from external crystal or resonator when FOSC[1:0] (CONFIG3[1:0]) are both logic 1 by default. 10 15 XTAL2 O CRYSTAL2: This is the output pin from the internal inverting amplifier. It emits the inverted signal of XTAL1. 27 41 VDD P POWER SUPPLY: Power supply to I/O ports and LDO source for internal PLL and digital circuit. 12 17 VSS P GROUND: Digital Ground potential. 33 28 42 AVDD P POWER SUPPLY: Power supply to internal analog circuit. 4 6 AVSS P GROUND: Analog Ground potential. 13 18 LDO_CAP P LDO: LDO output pin Note: It needs to be connected with a 1uF capacitor. 2 4 RST I (ST) RESET: /RST pin is a Schmitt trigger input pin for hardware device reset. A “Low” on this pin for 768 clock counter of Internal RC 22M while the system clock is running will reset the device. /RST pin has an internal pull-up resistor allowing power-on reset by simply connecting an external capacitor to GND. 26 40 P0.0 CTS1 AD0 TXD1 [2] D, I/O PORT0: Port 0 is an 8-bit four mode output pin and two mode input. Its multifunction pins are for CTS1, RTS1, CTS0, RTS0, SPISS1, MOSI_1, MISO_1, and SPICLK1. P0 has an alternative function as AD[7:0] while external memory accessing. During the external memory access, P0 will output high will be internal strong pulled-up rather than weak pull-up in order to drive out high byte 25 39 P0.1 RTS1 AD1 RXD1 [2] D, I/O NC 38 P0.2 CTS0 AD2 TXD [2] D, I/O |
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