74LS Datasheet PDF Download – DM74LS, 74LS data sheet. The SN54/74LSA is a Dual JK Flip-Flop with individual J, K, Direct. Clear and Clock Pulse inputs. Output changes are initiated by the. HIGH-to-LOW. ; Manufacturer: Major Brands; Manufacturer no.: 74LS Texas Instruments [ KB ]; Data Sheet (current) [ KB ]; Representative Datasheet, MFG.
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Meaning it has two JK flip flops inside it and each can be used individually based on our application. The term JK flip flop comes after its inventor Jack Kilby.
The JK flip flops are considered to be the most efficient flip-flop and can be used for certain applications on its own. The flip-flops are also called as latching devices meaning it can remember one single bit of data and latch the output based on it, due to this property they are commonly used as shift registers, control registers, storage registers or where ever a small memory is dataxheet.
Selling 74LS, 74LS, 74LSA with 74LS, 74LS, 74LSA Datasheet PDF of these parts.
The JK flip flop is considered to be more suitable for practical application because of its truth table that is the output of the flip flop will be 74,s107 for all types of inputs. So if you are looking for a IC for latching purpose or to act as a small programmable memory for you project then this IC datashete be the right choice for you. The below circuit shows a typical sample connection for the JK flip-flop. Note that the input pins are pulled down to ground through a 1k resistor, this way we can avoid the pin in floating condition.
(PDF) 74LS107 Datasheet download
That is the pin will held to ground when the button is not pressed and when the button is pressed the pin will be held to supply voltage. The reset button should be pulled up through a 1K resistor and when grounded will reset the flip-flop.
The clock signal for the JK flip-flop is responsible for changing the state of the output. The flip-flop will change its output only during the rising edge of the clock signal.
IC Datasheet: 74LS
The clock signal here is just a push button but can be type of pulse like a PWM signal. The output state of the flip flops can be determined form the truth table below. Normally during regular operation of datasheett IC the reset pin will be set high and the clock pulse of known frequency will be supplied to the clock pin, then the value o J and K will be varied based on the input signals and the respective output will be obtained on the Q and Q datashest pins.
This region of operation in highlighted in red colour on the Truth table above. Submitted by admin on 22 May dataxheet Complete Technical Details can be found at the datasheet given at the end of this page.
The below circuit shows a typical sample connection for the JK flip-flop The J and K pins are the input pins for the Flip-Flop and the Q and Q bar pins are the output pins. TL — Programmable Reference Voltage.