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LM97593 bảng dữ liệu(PDF) 5 Page - Texas Instruments |
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LM97593 bảng dữ liệu(HTML) 5 Page - Texas Instruments |
5 / 62 page LM97593 www.ti.com SNWS019B – JULY 2007 – REVISED APRIL 2013 PIN DESCRIPTIONS AND EQUIVALENT CIRCUITS (continued) Pin No. Symbol Equivalent Circuit Description CHIP ENABLE. Active low This control strobe enables the read or write operation. The contents of 60 CE Input the register selected by A[7:0] will be output on D[7:0] when RD is low and CE is low. If WR is low and CE is low, then the selected register will be loaded with the contents of D[7:0]. 116 TDO Output TEST DATA OUT. Active high 117 TDI Input TEST DATA IN. Active high with pull-up 118 TMS Input TEST MODE SELECT. Active high with pull-up 119 TCK Input TEST CLOCK. Active high. Tie low if JTAG is not used. TEST RESET. Active low with pull-up 121 TRST Input Asynchronous reset for TAP controller. Tie low or to MR if JTAG is not used. SCAN ENABLE. Active low with pull-up 122 SCAN_EN Input Enables access to internal scan registers. Tie high. Used for manufacturing test only! Digital Power Supplies 38, 39, 64, 79, 92, 102, VDR DDC Output Driver Power I/O Power Supply, 3.3V nominal. Quantity 8. 107, 128 1, 47, 61, 68, 83, 89, 98, DRGND DDC Output Driver Ground I/O Ground Return. Quantity 8. 110 49, 74, 85, VD18 DDC Core Power DSP Digital Core Power Supply, 1.8V nominal. Quantity 5. 115, 123 49, 74, 85, VD18 DDC Core Power DSP Digital Core Power Supply, 1.8V nominal. Quantity 5. 115, 123 44, 51, 65, 66, 76, 103, D18GND DDC Core Ground DSP Digital Core Ground Return. Quantity 7. 120 4, 6, 31, 34 VD ADC Digital Power ADC Digital Logic Power Supply, 3.3V nominal. Quantity 4. 5, 7, 32, 33 DGND ADC Digital Ground ADC Digital Logic Ground Return. Quantity 4. Analog Power Supplies 10, 11, 19, VA ADC Analog Power ADC Analog Power Supply, 3.3V nominal. Quantity 5. 25, 29 2, 9, 12, 18, AGND ADC Analog Ground ADC Analog Ground Return. Quantity 6. 20, 28 Unconnected Pins 3, 35, 36, 67, NC NC Not Connected. These pins should be left floating. 100, 101 Copyright © 2007–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM97593 |
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Mô tả tương tự - LM97593 |
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