74LS379 Quad 4-Bit D-type Parallel Register IC with Enable | Datasheet

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The 74LS379 IC is a 4-bit D-Type parallel register with a buffered common enable. 74LS379 IC consists of four edge-triggered D-type flip-flops with individual D inputs and Q and Q’ outputs. The Clock (CP) and Enable (E) inputs are common to all flip-flops. When E is HIGH, the register will retain the present data independent of the CP input. The IC is designed to prevent false clocking by transitions on the E (Enable) input. 74LS379 IC has a wide range of working voltage, a wide range of working conditions, and directly interfaces with CMOS, NMOS, and TTL. The IC 74LS379 is smaller in size and it has a much faster speed which makes it reliable in every kind of device.

What is a D-Type Flip-Flop?

A D-type flip-flop is a clocked latch with bi-stable states that operates with a delay in input by one clock cycle. Thus, by cascading many D-type flip-flops delay circuits can be created, which are used in many applications such as in digital television systems. A D-type flip-flop is also known as a D flip-flop or a delay flip-flop.

74LS379 Key Features & Specifications

  • Function: D-Type latch
  • Channels (#): 4
  • Technology Family: LS
  • VCC (Min): 4.75V
  • VCC (Max): 5.25V
  • Input type: Bipolar
  • Output type: Push-Pull
  • Clock frequency (Max): 35Mbps
  • IOL (Max): 8mA
  • IOH (Max): -0.4mA
  • Propagation speed: (TPD 5-10ns)
  • 8-Bit High Speed Parallel Registers
  • Positive Edge-Triggered D-Type Flip Flops
  • Fully Buffered Common Clock and Enable Inputs
  • True and Complement Outputs
  • Input Clamp Diodes Limit High Speed Termination Effects

74LS379 Pinout

Pin No.Pin NameDescription
1E’Active Low Enable Pin
2Q0Register Output Pin Q0
3Q0′Complementary Register Output Pin Q0
4D0Data Input Pin D0
5D1Data Input Pin D1
6Q1′Complementary Register Output Q1
7Q1Register Output Pin Q1
8GNDGround Pin
9CPClock Pulse Input
10Q2Register Output Pin Q2
11Q2′Complementary Register Output Q2
12D2Data Input Pin D2
13D3Data Input Pin D3
14Q3′Complementary Register Output Q3
15Q3Register Output Pin Q3
16VccChip Supply Voltage

Applications

The 74LS379 IC jas a wide array of application, a few of them are as follows:

  • They are usually used in applications such as, in communication lines where demultiplexing of a data line into several parallel lines is required.
  • They are also used to convert serial input data into a parallel output format.

74LS379 Datasheet

You can download the datasheet for 74LS379 Quad 4-Bit D-type Parallel Register IC from the link givrn below:

See Also: 74LS56 50-to-1 Frequency Divider IC – Datasheet | 74LS73 Dual JK Negative Edge Triggered Flip-Flop IC – Datasheet | 74LS46 BCD – 7 Segment Decoder IC – Datasheet