Skip to product information
1 of 1


4-bit Bi-directional Shift Register IC - 74HC194

4-bit Bi-directional Shift Register IC - 74HC194

Regular price Rs. 18
Regular price Rs. 24 Sale price Rs. 18
Sale Sold out 25% off Best Price Guaranteed
You save Rs. 6
Incl. GST (No Hidden Charges)
Currently, people are actively checking out this product.
Submit your Bulk Enquiry Here

Contact form

  • Parallel inputs and outputs 
  • Four operating modes: Synchronous parallel load Right shift Left shift Do nothing 
  • Positive edge-triggered clocking 
  • Direct overriding clear

4-bit Bi-directional Shift Register IC - 74HC194

The 74HC Series 74HC194 bidirectional shift register is designed to incorporate virtually all of the features a system designer may want in a shift register; they feature parallel inputs, parallel outputs, right-shift, and left-shift serial inputs, operating-mode-control inputs, and a direct overriding clear line.

The register has four distinct modes of operation, namely: Parallel (broadside) load Shift right (in the direction QA toward QD) Shift left (in the direction QD toward QA) Inhibit clock (do nothing) Synchronous parallel loading is accomplished by applying the four bits of data and taking both mode control inputs, S0 and S1, HIGH.

The data is loaded into the associated flip-flops and appears at the outputs after the positive transition of the clock input. During loading, serial data flow is inhibited. Shift right is accomplished synchronously with the rising edge of the clock pulse when S0 is HIGH and S1 is LOW. Serial data for this mode is entered at the shift-right data input. When S0 is LOW and S1 is HIGH, data shifts left synchronously and new data is entered at the shift-left serial input. Clocking of the flip-flop is inhibited when both mode control inputs are LOW. 

check out : 4-Line to 16-Line Decoder/Demultiplexer IC - 74HC154


Pinout Of 74HC194 IC

Package Includes:

  • 1 x IC - 74HC194


Supply Voltage (VCC) 7 V
Input Voltage (VI) 7 V
Operating free-air temperature range 0°C to +70°C 
Storage temperature range –65°C to +150°C

Shipping & Returns

  • All orders confirmed before 3 pm IST are shipped on the
    same day, barring rare pickup delays on holidays or disturbances
  • Delivery time in Metro cities is 1-3 days, Others it is
    3-7 days. It varies based on location, reliant on courier services
  • Return window: 7 days from receipt unless stated
    otherwise. No refunds/replacements after
  • Returns only for non-working/damaged products are accepted
  • Initiate return requests to our customer service team via Support ticket or contact us at +91-8123057137
  • Refunds are processed within 3-4 working days post inspection and approval.

For more details, please check our Shipping and Return Policy

View full details

Found a better price?

Let us know!
We'll try to match the price for you

  • ⚡ Dispatched within 24 hours

  • 💰 Earn RC Coins on every purchase

  • 🚚 Free shipping on orders above Rs 500/-

  • 🛠️ Dedicated Technical Support Team

1 of 4


1.What is 74HC194 4-bit universal shift register?

  • The 74HC194 is a bidirectional universal shift register with four bits. The mode select inputs determine the device's synchronous operation (S0, S1). In parallel load mode (S0 and S1 HIGH), data appearing on the D0 to D3 inputs is transferred to the Q0 to Q3 outputs when S0 and S1 are HIGH.

2.What is the function of IC 74194?

  • The 74HC194 bidirectional shift register is designed to include virtually every feature a system designer could want in a shift register, including parallel inputs and outputs, right-shift and left-shift serial inputs, operating-mode-control inputs, and a direct overriding clear line.

3.What is 4-bit universal shift register?

  • These universal shift registers have four bits and are bidirectional. Parallel outputs, as well as right and left shift, are included. Inputs include serial (SR SER, SL SER), operating mode control (S0, S1), and a direct overriding clear (CLR) line.