Key facts
- Brand
- ON Semiconductor
- Model
- MC74
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 34
- Languages
- EN
- Last added
- 2026-09-28
Start here
ON Semiconductor MC74LCX540 Low-Voltage CMOS Octal Buffer Data Sheet
The MC74LCX540 octal buffer operates from a 2.3 V to 3.6 V supply and features 5 V‑tolerant inputs, balanced 24 mA source/sink capability, and low static supply current. It is suited for memory address driving and TTL‑level bus applications.
The data sheet provides detailed electrical characteristics, pin‑out diagrams, package dimensions for SOIC‑20 and TSSOP‑20, and ordering information. It also includes maximum ratings, propagation delays, and capacitive parameters for designers.
ON Semiconductor MC74 specifications
| Supply Voltage Range | 2.3 V – 3.6 V |
|---|---|
| Input Voltage Tolerance | 5 V tolerant |
| Output Current (source/sink) | ±24 mA |
| High‑Level Output Current (VCC = 3.0 V‑3.6 V) | -24 mA |
| Low‑Level Output Current (VCC = 3.0 V‑3.6 V) | 24 mA |
| Package Types | SOIC‑20, TSSOP‑20 |
Source: ON Semiconductor MC74LCX540 Low-Voltage CMOS Octal Buffer Data Sheet
All ON Semiconductor MC74 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
- ON Semiconductor MC74LCX540 Low-Voltage CMOS Octal Buffer Data Sheet 8 p
- ON Semiconductor MC74AC244/MC74ACT244 Octal Buffer Datasheet 5 p
- ON Semiconductor MC74AC240/MC74ACT240 Octal Buffer/Line Driver Datasheet 9 p
- ON Semiconductor MC74AC240/MC74ACT240 Octal Buffer/Line Driver Datasheet 8 p
- ON Semiconductor MC74AC157/MC74ACT157 Quad 2-Input Multiplexer Datasheet 10 p
- ON Semiconductor MC74AC139/DMC74AC139, MC74ACT139 Dual 1-of-4 Decoder/Demultiplexer Datasheet 12 p
- ON Semiconductor MC74AC138/MC74ACT138 Datasheet 11 p
- ON Semiconductor MC74AC08/MC74ACT08 Quad 2-Input AND Gate Datasheet 8 p
- ON Semiconductor MC74 Serial Digital Temperature Sensor Datasheet 12 p
- ON Semiconductor MC74AC573/MC74ACT573 Octal Buffer Datasheet 12 p
- ON Semiconductor MC74LVXT4066 Quad Analog Switch Datasheet 13 p
- ON Semiconductor MC74LVXT4066 Datasheet 13 p
- ON Semiconductor MC74HC4051A MC74HC4052A MC74HC4053A Datasheet 18 p
- ON Semiconductor MC74HC4066A Quad Analog Switch Datasheet 16 p
- ON Semiconductor MC74HC14A Datasheet 10 p
- ON Semiconductor MC74HC273A Datasheet 9 p
- ON Semiconductor MC74AC74 / MC74ACT74 Dual D‑Type Positive Edge‑Triggered Flip‑Flop Datasheet 12 p
- ON Semiconductor MC74AC02 / MC74ACT02 Quad 2-Input NOR Gate Datasheet 10 p
- ON Semiconductor MC74HC273A Datasheet 10 p
- ON Semiconductor MC74HC04A Hex Inverter Datasheet 6 p
- ON Semiconductor MC74HC540A Datasheet 8 p
- ON Semiconductor MC74HC32A Quad 2-Input OR Gate Datasheet 8 p
- ON Semiconductor MC74HC139A Dual 1‑of‑4 Decoder/Demultiplexer Datasheet 10 p
- ON Semiconductor MC74HC374A Datasheet 10 p
- ON Semiconductor MC74HC573A Octal 3-State Noninverting Transparent Latch Datasheet 8 p
- ON Semiconductor MC74HC244A Datasheet 10 p
- ON Semiconductor MC74HC373A Datasheet 10 p
- ON Semiconductor MC74HC132A Quad 2-Input NAND Gate with Schmitt-Trigger Inputs Datasheet 8 p
- ON Semiconductor MC74HC245A Octal 3‑State Noninverting Bus Transceiver Datasheet 10 p
- ON Semiconductor MC74VHC1G125 Datasheet 8 p
Questions answered in these manuals
What supply voltage range does the MC74LCX540 operate from?
It operates from 2.3 V to 3.6 V.
From: ON Semiconductor MC74LCX540 Low-Voltage CMOS Octal Buffer Data Sheet
How much output current can the device source or sink?
The device can source or sink up to ±24 mA balanced output current.
From: ON Semiconductor MC74LCX540 Low-Voltage CMOS Octal Buffer Data Sheet
What are the main applications for the MC74AC244?
The device is designed to be employed as a memory address driver, clock driver, and bus oriented transmitter/receiver.
From: ON Semiconductor MC74AC244/MC74ACT244 Octal Buffer Datasheet
What is the maximum output current capability?
The outputs can source or sink 24 mA.
From: ON Semiconductor MC74AC244/MC74ACT244 Octal Buffer Datasheet
How many inputs and outputs does this device have?
It is an octal buffer with 8 data inputs (D) and one output enable input (OE).
From: ON Semiconductor MC74AC240/MC74ACT240 Octal Buffer/Line Driver Datasheet
What is the maximum DC supply voltage for this device?
The maximum DC supply voltage referenced to ground is +7.0 V.
From: ON Semiconductor MC74AC240/MC74ACT240 Octal Buffer/Line Driver Datasheet