IC 4094 – 8-Bit Shift Register with Output Latches

Overview

The IC 4094 – 8-Bit Shift Register with Output Latches is a CMOS (Complementary Metal-Oxide-Semiconductor) integrated circuit that functions as an 8-bit shift register with output latches. It is used for serial-to-parallel conversion, which allows for the shifting of data in serial form and then outputting it in parallel form.

Features

• Type: 8-bit shift register with output latches.
• Data Input: Serial input for shifting data into the register.
• Parallel Output: Eight parallel outputs that provide the shifted data.
• Clock: Shifts data on the clock’s rising edge.
• Output Latches: Each output has a latch that holds the data when the register is not shifting.
• Power Supply: Typically operates between 3V to 15V.
• Package Type: IC 4094 – 8-Bit Shift Register with Output Latches Available in various packages, including DIP (Dual In-line Package), SOP (Small Outline Package), and others.

Pin Configuration

• Pin 1: Serial Data Input (DS).
• Pin 2: Shift Clock Input (SH_CP).
• Pin 3: Storage Clock Input (ST_CP).
• Pin 4: Output Enable (OE).
• Pin 5: Q0 (Parallel Output 0).
• Pin 6: Q1 (Parallel Output 1).
• Pin 7: Q2 (Parallel Output 2).
• Pin 8: Q3 (Parallel Output 3).
• Pin 9: Q4 (Parallel Output 4).
• Pin 10: Q5 (Parallel Output 5).
• Pin 11: Q6 (Parallel Output 6).
• Pin 12: Q7 (Parallel Output 7).
• Pin 13: Vcc (Power Supply).
• Pin 14: Ground (GND).

Applications

• Data Storage: Used to temporarily store data in digital circuits.
• Data Shifting: Ideal for applications requiring serial-to-parallel data conversion.
• LED Displays: Commonly used in driving 7-segment or LED displays where data needs to be shifted and displayed in parallel.
• Peripheral Expansion: Useful in expanding the number of output lines for controlling multiple peripherals.

Working Principle

The IC 4094 – 8-Bit Shift Register with Output Latches operates by receiving serial data and shifting it into the 8-bit register on each clock pulse applied to the shift clock input. The data is then latched into the output latches when a pulse is applied to the storage clock input, making it available on the parallel outputs. The output enable pin controls whether the outputs are active or in a high-impedance state.

Advantages

• Versatility: Can be used in a variety of applications requiring data shifting and storage.
• Ease of Use: Simplifies the process of converting serial data to parallel data.
• Low Power Consumption: CMOS technology ensures efficient power usage.

The IC 4094 – 8-Bit Shift Register with Output Latches is a valuable component for digital circuits that need to convert serial data into parallel form, providing a practical solution for data management and peripheral control in various electronic applications.