XD551 DIP8, XL551 SOP8 monolithic timing circuit

PublishTime：2021-05-19

The XDXL551 is a monolithic timing circuit fabricated using LinCMOS™ process. The timer is fully compatible with CMOS, TTL and MOS logic and operates at frequencies up to 2 MHz. Compared to the XL555 timer, this device uses smaller timing capacitors because of its high input impedance. As a result, more accurate time delays and oscillations are possible. Power consumption is low across the full range of power supply voltage.
Like the XL555, the XDXL551 has a trigger level equal to approximately one-third of the supply voltage and athreshold level equal to approximately two-thirds of the supply voltage. These levels can be altered by use of the control voltage terminal (CONT). When the trigger input (TRIG) falls below the trigger level, the flip-flop is set and the output goes high If TRIG is above the trigger level and the threshold input (THRES) is above the threshold level, the flip-flop is reset and the output is low. The reset input (RESET) can override all other inputs and can be used to initiate a new timing cycle. If RESET is low. the flip-flop is reset and the output is low Whenever the output is low, a low-impedance path is provided between DISCH and GND. All unused inputs should be tied to an appropriate logic level to prevent false triggering.
While the CMOS output is capable of sinking over 100 mA and sourcing over 10 mA; the XDXL551 exhibits greatly reduced supply-current spikes during output transitions. This minimizes the need for the large decoupling capacitors required by the XL555.
The XDXL551C is characterized for operation from 0 °C to 70°C.
● Very Low Power Consumption 1 mW Typ at V-DD = 5V
● Capable of Operation in Astable Mode
● CMOS Output Capable of Swinging Rail to Rail
● High Output-Current Capability Sink 100 mA Typ; Source 10 mA Typ
● Output Fully Compatible With CMOS, TTL, and MOS
● Low Supply Current Reduces Spikes During Output Transitions
● Single-Supply Operation From 1 V to 15 V

Brand of Product：	XINLUDA
Part#：	XD551 、 XL551 、 XL555 More Part#
Product Category：	monolithic timing circuit More
Application：	More
Data Type：	Datasheet More
Safety & Environment Standards：	More
Operating Temperature：	Please see the document for details
Qualification Grade：	More
Qualification Approval：	More
Package：	DIP8;SOP8;SOP;DIP
Language：	English Chinese Chinese and English Japanese
Date of Creation：
Version Number：
Data Encoding：
Data Size：	523 KB

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