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SN74LS393N

Name: SN74LS393N
Rating: 4.7 (12 reviews)

IC DUAL 4-BIT BINARY CNTR 14-DIP

製造商
製造商。部分 #SN74LS393N
包 14-DIP (0.300, 7.62mm)
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規格

Package	Tube
Series	74LS
ProductStatus	Active
LogicType	Binary Counter
Direction	Up
NumberofElements	2
NumberofBitsperElement	4
Reset	Asynchronous
CountRate	35 MHz
TriggerType	Negative Edge
Voltage-Supply	4.75 V ~ 5.25 V
OperatingTemperature	0°C ~ 70°C
MountingType	Through Hole
Package/Case	14-DIP (0.300, 7.62mm)

概述

Description

The SN74LS393N is a dual 4-bit binary ripple counter designed by Texas Instruments. It features two independent counters that can count both up and down, making it versatile for various counting applications. The device operates with a 5V power supply and is part of the Low Power Schottky family, ensuring faster operation and reduced power consumption compared to traditional TTL devices.
Key features include asynchronous resetting, preset capabilities, and the ability to cascade multiple counters for higher counting ranges. Each counter can handle inputs at rates exceeding 30 MHz, making it suitable for high-speed applications. The SN74LS393N is available in a 16-pin dual in-line package (DIP), simplifying integration into circuits.
Overall, the SN74LS393N is ideal for applications such as frequency division, digital clocks, and event counters, providing reliable and efficient counting solutions in electronic designs.

Features

The SN74LS393N is a dual 4-bit binary ripple counter designed for use in digital applications. Key features include:
1. Dual Counter: Two independent 4-bit binary counters, allowing for versatile counting applications.
2. Asynchronous Reset: Each counter can be reset independently, providing flexibility in operation.
3. TTL Compatible: It is compatible with TTL (Transistor-Transistor Logic) levels, ensuring easy integration with other TTL devices.
4. High Speed: Operates at a maximum frequency of 30 MHz, suitable for fast digital circuits.
5. Low Power: Consumes low power, making it ideal for battery-operated devices.
6. Parallel Load Capability: Can load data into the counter directly, enhancing functionality in specific applications.
7. Count Enable Inputs: Allows counting to be controlled externally, adding versatility to counting sequences.
Overall, the SN74LS393N is widely used in frequency division, timing applications, and digital counters, providing reliable performance in various electronic designs.

Package

The SN74LS393N is typically packaged in a DIP (Dual In-line Package) format. It features 14 pins and is designed for easy integration into various electronic circuits, providing dual 4-bit binary ripple counters.

Pinout

The SN74LS393N is a dual 4-bit binary counter integrated circuit. It features a 14-pin DIP (Dual In-line Package) configuration.
Pin Count and Function:
1. 1 (QA): Output A (Bit 0)
2. 2 (QB): Output B (Bit 1)
3. 3 (QC): Output C (Bit 2)
4. 4 (QD): Output D (Bit 3)
5. 5 (CLR A): Asynchronous Clear for Counter A
6. 6 (CLR B): Asynchronous Clear for Counter B
7. 7 (LOAD A): Asynchronous Load for Counter A
8. 8 (LOAD B): Asynchronous Load for Counter B
9. 9 (GND): Ground
10. 10 (VCC): Positive Supply Voltage
11. 11 (CLK A): Clock Input for Counter A
12. 12 (CLK B): Clock Input for Counter B
13. 13 (ENP A): Enable Parallel Load for Counter A
14. 14 (ENP B): Enable Parallel Load for Counter B
The SN74LS393N is commonly used in applications requiring counting functions, such as timers and frequency dividers.

Manufacturer

The SN74LS393N is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronics components, including integrated circuits (ICs), analog devices, and embedded processors. Established in 1930, TI is known for its innovations in analog and digital signal processing, and it serves various markets such as automotive, communications, industrial, and consumer electronics. The company is recognized for its contributions to the advancement of technology and is a major player in the semiconductor industry.

Application

The SN74LS393N is a dual 4-bit binary ripple counter used in various applications, including frequency division, digital clock circuits, event counting, and timing applications. It can also serve in state machines, data storage, and sequencing tasks. Its versatility makes it suitable for both hobbyist projects and more complex digital systems in telecommunications, automotive electronics, and industrial control systems.

Equivalent

The SN74LS393N is a dual 4-bit binary counter. Equivalent products include:
1. MC74HC393A
2. CD4020
3. 74HC393
These chips perform similar functions in counting applications, though their specifications (e.g., voltage levels, speed) may vary. Always consult datasheets for detailed comparisons.