4015 IC Shift Register Serial to parallel PDIP-16 Original

4015 IC
Shift Register
Serial to parallel PDIP-16 Original

The
CD4015B
is a monolithic CMOS integrated circuit that functions as a dual 4-bit static shift register. Its primary role is to convert serial data into parallel data, operating as a serial-in, parallel-out (SIPO) register. The device is constructed using complementary MOS technology, which provides it with the classic benefits of very low power consumption and a wide operating voltage range. This makes it a versatile and robust building block for various digital logic systems, capable of interfacing with both CMOS and TTL logic families when operated at a suitable voltage.

The IC contains two identical and completely independent shift registers on a single chip. Each register has its own dedicated data input, clock input, and a master reset input, allowing for flexible and separate control. Data presented at the serial input is shifted into the register on the low-to-high transition of the clock pulse. The master reset input, when set to a high logic level, asynchronously clears all stages of its respective register, forcing all outputs to a low state, regardless of the clock or data input conditions.

Each of the four stages in a register is represented by a Q output, providing parallel access to the shifted data. The data bit moves from one stage to the next with each clock pulse, effectively creating a delay line or a means to hold multiple bits of data. This parallel output structure is ideal for tasks like driving multiple outputs from a single serial data line, such as illuminating LEDs or controlling other digital loads, thereby reducing the number of microcontroller I/O pins required in a system.

Features:

Dual 4-Stage Static Shift Registers.

Serial Input, Parallel Output Operation.

Master Reset for Each Register.

Medium-Speed Operation.

Fully Static Operation (Does not require a minimum clock frequency).

Low Power TTL Compatibility.

Standardized Symmetrical Output Characteristics.

100% Tested for Quiescent Current at 20V.

Pin Overview:

Pinout for the 4015 IC

Pin Name

Pin #

Type

Description

VDD

16

Power

Supply Voltage (+3 to +15V)

GND

8

Power

Ground (0V)

D
A

7

Input

Data pin for register A

CLK
A

9

Input

Clock pulse for register A

RST
A

6

Input

Reset pin for register A

Q
A0
,Q
A1
,Q
A2
,Q
A3

5,4,3,10

Output

4-bit output for register A

D
B

15

Input

Data pin for register B

CLK
B

1

Input

Clock pulse for register B

RST
B

14

Input

Reset pin for register B

Q
B0
,Q
B1
,Q
B2
,Q
B3

11,12,13, 2

Output

4-bit output for register B

Specifications:

Physical

Case/Package

PDIP

Contact Plating

Gold

Mount

Through Hole

Number of Pins

16

Technical

Direction

Unidirectional

Frequency

17 MHz

Input Capacitance

5 pF

Logic Function

Shift Register

Max Operating Temperature

125 C

Max Supply Voltage

18 V

Min Operating Temperature

-55 C

Min Supply Voltage

3 V

Number of Bits

4

Number of Bits per Element

4

Number of Circuits

2

Number of Elements

2

Number of Input Lines

1

Number of Output Lines

4

Power Dissipation

500 mW

Propagation Delay

400 ns

Quiescent Current

100 A

Turn-On Delay Time

400 ns

Applications:

Serial-to-Parallel Data Conversion.

Data Storage and Temporary Memory.

Time Delay Circuits.

Sequence Generation and Control.

LED Matrix or Bar Graph Drivers.

Package Contents:

1x
4015 IC Shift Register Serial to parallel PDIP-16 Original

Datasheet