| Part Numbert | Mfg | Packt | D/C | Descriptiont | Qty | Company/Contact |
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PC74HC123T SO16 PC74HC123T SO16 PC74HC123TSO16 Price PRELOAD To simplify testing, the 10H20EV8/10020EV8 has also included PRELOAD circuitry. This allows a user to load any particular data desired into the registers regardless of the programmed pattern. This means that the PRELOAD can be done on a blank part and after that same part has been programmed to facilitate any post-fuse testing desired. PC74HC123T SO16 PC74HC123T SO16 PC74HC123TSO16 on stock High-voltage Bias Current Source This current source biases TOPSwitch from the DRAIN pin and charges the CONTROL pin external capacitance (CT) during start-up or hysteretic operation. Hysteretic operation occurs during auto-restart and latched shutdown. The current sourceis switched on and offwith an effective duty cycle of approximately 35%. This duty cycle is determined by the ratio of CONTROL pin charge (Ic) and discharge currents (ICD, and ICD2). This current source is turned offduring normal operation when the output MOSFET is switching. GENERAL DESCRIPTION The DS21349 is a fully integrated LIU for long- haul or short-haul Tl applications over twisted- pair installations. It interfaces to two twisted-pair lines-one pair for transmit and one pair for receive through an appropriate network interface. The device can be configured for control through software or hardware mode. Software control is accomplished over a serial port, in hardware mode; individual pin settings allow standalone operation. The device provides a precise, crystal-less jitter attenuator that can be placed in either the transmit or receive path. |
