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XC4005XL-1TQ144C

XC4005XL-1TQ144C资料
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File Size : 116 KB Manufacturer:XILINX Description:These pins form a 5´8 keyboard matrix which can perform keyboard input detection and dialing specification setting functions. When on-hook (HKS=high) all the pins are set high. While off-hook the column group (C1~C8) remains low and the row group (R1~R5) is set high for key input detection. An inexpensive single contact 5´8 keyboard can be used as an input device. Pressing a key connects a single column to a sin- gle row, and actuates the system oscillator that results in a di- aling signal output. If more than two keys are pressed at the same time, no response occurs. The key-in debounce time is 20ms. Refer to the keyboard information for keyboard ar- rangement and to the functional description for dialing speci- fication selection.

	1PCS	100PCS	1K	10K
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型号：XC4005XL-1TQ144C 厂家：XILINX 封装：750 批号：05+ 数量：QFP 说明：


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