Datasheet SN74LS251 Equivalent ( PDF ) - Data

SN74LS251 8-Input Multiplexer with 3-State Outputs The TTL, MSI SN74LS251 is a high speed 8-Input Digital Multiplexer. It provides, in one package, the ability to select one bit of data from up to eight sources. The LS251 can be used as a universal function generator to generate any logic function of four variables. Both assertion and negation outputs are provided. http:, , onsemi.com Scho

8-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS The TTL, MSI SN74LS251 is a high speed 8-Input Digital Multiplexer. It provides, in one package, the ability to select one bit of data from up to eight sources. The LS251 can be used as a universal function generator to generate any logic function of four variables. Both assertion and negation outputs are provided. Schottky Process for High Speed Multifun

1. N channel 2. Enhancement mode 3. Logic Level

1. N channel Enhancement mode 2. Logic Level

1. N-Channel Enhancement mode Logic Level dv, dt rated 2. VDS 60 V RDS(on) 5 Ω ID 0.2 A

1. N-Channel Enhancement mode Logic Level dv, dt rated 2. VDS 60 V RDS(on) 5 Ω ID 0.23 A

The SN7101 is integrated a high stability band gap voltage reference, two ORed operational amplifiers and a current source. This IC compares the DC voltage and the current level at the output of a switching power supply to an internal reference.

It provides a feedback through an Opto-coupler to the PWM controller IC in the primary side. The controlled current generator can be used to modify the level of current limitation by offsetting the information coming from the current sensing resistor.

The SN7103 is a monolithic IC that includes one independent op-amp and another op-amp for which the non inverting input is wired to a 2.5V fixed Voltage Reference.