74F3038

The 74F3038 is a high current Open-Collector Line Driver composed of four 2-input NAND gates. It has been esigned to deal with the transmission line effects of PC boards which appear when fast edge rates are used.

The 74F3038 can sink 160mA with a V_CC as low as 4.5V. This guarantees incident wave switching with V_OL not more than 0.8V while driving impedances as low as 30W. This is applicable with any combination of outputs using continuous duty.

The AC specifications for the 74F3038 were determined using the standard FAST load for open-collector parts of 50pF capacitance, a 500W pull-up resistor and a 500W pull-down resistor. (See Test Circuit).

Reducing the load resistors to 100W will decrease the tPLH propagation delay by approximately 50% while increasing tPHL only slightly. The graph of typical propagation delay versus load resistor (see AC Characteristics section for Graph) shows a spline fit curve from four measured data points, RL = 30, RL = 100, RL = 300, and RL = 500.

The 74F3038 is designed as a high current open collector line driver composed of four 2-input NAND gates. It has been designed to deal with the transmission line effects of PC boards which appear when fast edge rates are used.

The five features of the 74F3038. The first one is 30 line driver. The second one is it would have 160mA output drive capability. The third one is it would have high speed. The fourth one is facilitates incident wave switching. The fifth one is 3nh lead inductance each on VCC and GND when both side pins are used. That are all the main features.

Some absolute maximum ratings of the 74F3038 have been concluded into several points as follow. The first one is about its supply voltage which would be from -0.5 to +7.0V. The second one is about its input voltage which would be from -0.5 to +7.0V. The third one is about its input current which would be from -30 to +5mA. The fourth one is about its voltage applied to output in high output state which would be from -0.5V to Vcc. The fifth one is about its current applied to output in low output state which would be 320mA. The sixth one is about its operating free-air temperature range which would be from 0 to +70°C. The seventh one is about its storage temperature which would be from -65 to +150°C.

And also some recommended operating conditions about the 74F3038. The first one is about its supply voltage which should be min 4.5V and nom 5.0V and max 5.5V. The second one is about its high-level input voltage which should be min 2.0V. The third one is about its low-level input voltage which should be max 0.8V. The fourth one is about its input clamp current which should be max -18mA. The fifth one is about its high-level output voltage which should be max 4.5V. The sixth one is about its low-level output current which should be max 160mA. The seventh one is about its operating free-air temperature range which should be from 0 to 70°C. And so on. For more information please contact us for details.