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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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HD151TS201AT датащи(PDF) 19 Page - Renesas Technology Corp |
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HD151TS201AT датащи(HTML) 19 Page - Renesas Technology Corp |
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19 / 29 page  HD151TS201AT Rev.1.00, Oct.21.2003, page 19 of 28 Pin Descriptions (cont.) Pin name No. Type Description REF 56 OUTPUT 14.318MHz reference clock. MULT0 43 INPUT CPUCLK’s output current setting. This pin is 150k Ω internal pull-up. PWRDWN# 25 INPUT Power down pin. All circuits will be powered down. (Output state of each output is shown in page Table.) Asynchronous active low input pin used to power down the device into low power state. The internal clocks are disabled and VCO and the crystal are stopped. USB48 39 OUTPUT 3.3V 48 MHz USB clock output. DOT48 38 OUTPUT 3.3V 48MHz DOT clock output. XIN 2 INPUT XTAL input. XOUT 3 OUTPUT XTAL output. Don’t connect when an external clock is applied to XIN. SDATA 29 INPUT/ OUTPUT Data input/output for I 2C logic. This pin is internal pull-up to VDD by 150K Ω resistor. SCLK 30 INPUT Clock input for I 2C logic. This pin is internal pull-up to VDD by 150K Ω resistor. IREF 42 IN A precision resistor is attached to this pin which is connected to internal current reference. A resistor is connected between this pin and GNDIREF. 3V66_0 33 OUTPUT 3.3 V 66 MHz clock. 3V66_1/VCH 35 OUTPUT 3.3V clock output selectable with SM Bus byte0, bit5. When Byte0 bit5 is at logic”1”, this pin is 48 MHz clock output. When Byte0 bit5 is at logic”0”, this pin is 66 MHz clock output. Default is 66 MHz output. 66IN/3V66_5 24 IN/OUT If S2 = 1, Input connection for 66OUT [2:0]. If S2 = 0, outputs fixed 66 MHz clock. 66OUT[2:0]/ 3V66[4:2] 23,22,21 OUTPUT If S2 = 1, Buffered copies of 66IN. If S2=0, outputs fixed 66MHz clock. |
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