BUY SN74LS20N https://www.utsource.net/itm/p/1710979.html
500mA, 6V,±4% Tolerance, Voltage Regulator, Ta = 0°C to +125°C; Package: DPAK 4 LEAD Single Gauge Surface Mount; No of Pins: 4; Container: Tape and Reel; Qty per Container: 2500
Quadruple 2-Input Positive-NAND Gates
Features:
* Inputs and outputs in standard TTL-compatible logic levels
* Outputs source/sink 24 mA
* Fanout of 2 LS-TTL loads
* Power dissipation of 500 mW
Applications:
* Logic gating
* Data transmission
* Data storage
* Signal processing
* Timing and control
(For reference only)