74HC125 LOGIC GATE IC (INTEGRATED CIRCUIT) – KSH 150 at HIMA TRONICS Mombasa – Top quality intergrated circuits. Best electronics in Kenya. Shop now for Arduino, ESP32, sensors and IoT devices.
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74HC125 LOGIC GATE IC (INTEGRATED CIRCUIT)

SKU: HMJ1083 Category: Intergrated circuits
KSH 150.00
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Product Description

74HC125 Quad Buffer/Line Driver with 3-State Outputs

= HighPerformance 3State Buffer IC for Bus-Oriented Systems =

The 74HC125 is a highspeed CMOS logic IC featuring four independent buffer gates with 3state outputs. Each noninverting buffer has a separate activelow output enable (nOE) pin. Driving this pin HIGH places the output in a highimpedance (OFF) state, effectively disconnecting the buffer from the bus and allowing multiple devices to share the same line without conflict. This makes the 74HC125 ideal for memory address drivers, clock drivers, and other busoriented systems.

Operating voltage range: 2.0V to 6.0V
Output drive capability: ±7.8mA (at 6V)
Propagation delay: 9ns typical at 5V
Do not exceed 7.0V supply voltage - permanent damage may occur
Unused inputs must be tied to VCC or GND to prevent oscillation

= Technical Specifications =

ParameterValue
Supply Voltage (VCC)2.0V to 6.0V
Input Voltage0V to VCC
Output Current (High/Low)±7.8mA (at 6V)
Propagation Delay9ns typical at 5V
Quiescent Current8µA typical
Operating Temperature-40°C to +125°C
Package TypesDIP14, SOIC14, TSSOP-14
Number of Gates4 (non-inverting buffers)

= Pin Configuration (DIP14/SOIC14/TSSOP-14) =

PinNameFunction
11OEChannel 1 Output Enable (Active LOW)
21AChannel 1 Data Input
31YChannel 1 Data Output
42OEChannel 2 Output Enable (Active LOW)
52AChannel 2 Data Input
62YChannel 2 Data Output
7GNDGround (0V)
83YChannel 3 Data Output
93AChannel 3 Data Input
103OEChannel 3 Output Enable (Active LOW)
114YChannel 4 Data Output
124AChannel 4 Data Input
134OEChannel 4 Output Enable (Active LOW)
14VCCSupply Voltage (2V to 6V)

= Truth Table (Per Buffer) =

Input (nA)Enable (nOE)Output (nY)
XHIGHZ (High-Impedance)
LOWLOWLOW
HIGHLOWHIGH

= Key Features =

3State Outputs Enables shared bus connections without conflict

Four Independent Buffers Multiple channels in a single 14pin package

Wide Supply Range - Operates from 2V to 6V for flexible integration

Low Power Consumption 8µA quiescent current ideal for battery-powered devices

High Noise Immunity - CMOS inputs ensure reliable operation in noisy environments

Schmitt Trigger Action - Clean switching even with slow input edges

15 LSTTL Load Drive Capable of driving 15 lowpower Schottky TTL loads

== Applications ==

  • Bus-oriented systems and data transmission
  • Memory address and clock drivers
  • Computer peripherals and networking equipment
  • Industrial control systems
  • Signal buffering and line driving
  • Microcontroller I/O expansion
  • Three-state bus interfaces
Independent Enables Each buffer has its own activelow enable for precise control
High Output Drive - ±7.8mA capability handles moderate loads with ease

√ Compatible with CMOS, NMOS, and TTL logic levels

√ Industry-standard 74HC125 pinout for easy replacement

√ RoHS compliant and green device options available

= Package Includes =

1. *1x* 74HC125 Logic IC (PackageDIP14, SOIC14, or TSSOP-14 per variant)
  1. Anti-static packaging for safe delivery
Use 0.1µF decoupling capacitor near VCC pin for stable operation
For long bus lines, consider series termination resistors to reduce reflections
This IC is also available as 74HCT125 for TTL-compatible input levels
Never leave output enable pins floating use pullup or pull-down resistors
ESD sensitive device - use proper handling procedures