전자부품 데이터시트 검색엔진 |
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GS-D200 데이터시트(PDF) 5 Page - STMicroelectronics |
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GS-D200 데이터시트(HTML) 5 Page - STMicroelectronics |
5 / 17 page 5/17 PIN DESCRIPTION Pin Function Description 1 GND1 Return path for the logic signals and 5V supply. 2 Sync Chopper oscillator output. Several modules can be synchronized by connecting together all Sync pins. This pin can be used as the input for an external clock source. 3 Reset Asynchronous reset input. An active low pulse on this input preset the internal logic to the initial state (ABCD=0101). 4 Half/Full Half/Full step selection input. When high or unconnected the half step operation is selected. 5 Home When high, this output indicates that the internal counter is in its initial state (ABCD=0101). This signal may be used in conjunction with a mechanical switch to ground or with open collector output of an optical detector to be used as a system home detector. 6 Stepclk The motor is moved one step on the rising edge of this signal. 7 CW/CCW Direction control input. When high or unconnected clockwise rotation is selected. Physical direction of motor rotation depends also on windings connection. 8 Oscillator The chopper oscillator timing, internally fixed at 17kHz, can be modified by connecting a resistor between this pin and Vss or a capacitor between this pin and Gnd1. The oscillator input must be grounded when the unit is externally synchronized. 9 Ioset Phase current setting input. A resistor connected between this pin and Gnd1 or Vss, allows the factory setted phase current value (1A for GS-D200 and 2A for GS-D200S) to be changed. 10 Control Logic input that allows the phase current decay mode selection. When high or unconnected the slow decay is selected. 11 Enable Module enable input. When low this input floats the outputs enabling the manual positioning of the motor. Must be LOW during power-up and down sequence, HIGH during normal operation. 12 Vss 5V supply input. Maximum voltage must not exceed 7V. 13 GND2 Return path for the power section. 14 D D output. 15 C C output. 16 B B output. 17 A A output. 18 Vs Module and motor supply voltage. Maximum voltage must not exceed the specified values. GS-D200/GS-D200S |
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