74HC245 DATASHEET PDF
74HC Datasheet, 74HC Octal Bus Transceiver Datasheet, buy 74HC 74HC is an 8-bit transceiver IC with 3-state output, i.e. it has two set of pins in which each set has 8 pins. Out of these two sets one can be used as input and. 74HC; 74HCT Octal bus tranceiver; 3-state. Rev. 03 — 31 January Product data sheet. Table 1: Quick reference data. GND = 0 V; Tamb = 25 °C;.
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The total supply current which is also the sum of all currents supplied 74hc245 datasheet outputs should 74hc245 datasheet be more than 70 mA. Since the IC is a transceiver IC, Data can flow from dtaasheet bus to output bus and also from output bus to input bus, by simply toggling the Direction pin DIR pin as required.
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74HC Datasheet PDF / Fairchild –
74HC245 Octal Bus Transceiver Tri-State
The 74hc245 datasheet current is how much current the driver on the pin can actually supply, which is specified as 35 mA. Sign up using Facebook.
Icc is 74hc245 datasheet max current to 74hc245 datasheet Vcc pin. Also we can reduce the input leakage current by disabling the inputs by using the OE datadheet as shown in the table above. The output voltage will always be equal to the Vcc voltage, so here since we are converting the 3.
The interesting thing about these chips is they actually have a spec for the current through the ESD protection diodes. Meaning it has 74hc245 datasheet set of pins A0-A7 and B0-B7in which each set has 8 pins. Sign up using Email and Password. Questions Tags Users Badges Unanswered. 74hc245 datasheet also has a decent output current of 35mA and hence can be used to drive nominal loads.
Next Article Timer IC. Current will only flow through these diodes if you apply a voltage to an input or output pin which falls outside the supply rails greater than Vcc or less than GND. How much current can this 74HC handle on each output pin? The clamping currents are currents that will flow if you apply a voltage to the input or output voltage below ground or above the supply voltage, see the conditions: Both xatasheet these are specified at 20 mA.
Out of 74hc245 datasheet two sets one vatasheet can be used as input and dataheet other set can be used as output. The clamping currents are the maximum allowed currents through these diodes. Is it 20mA, 35mA, or 70mA? Hence in those cases a bi-directional transceiver 74hc245 datasheet like 74HC seems to be an ideal choice. This means that it is actually perfectly reasonable to connect the inputs to a relatively high voltage source say, 12V and only use a series current limiting resistor for the level translation.
74HC245 5V CMOS Octal Transceiver
Sam Washburn 2 But it is not efficient for high speed operation or for bi-directional communication 74hc245 datasheet. In these cases we 47hc245 a logic level converter; the simplest logic level converter is a potential divider.
So in these cases we have to shift one set of operating voltage 3. I don’t understand what the difference between output current, output clamping current, and supply 74hc245 datasheet is. Top menu About Us Contact. Both of these are listed as 70 mA.
But if you do, do not exeed these limits. Top menu About Us Advertise.