SN74BCT2240NSRE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
SN74BCT2240NSRE4 is a Texas Instruments octal buffer/line driver with 3-state outputs, featuring inverting enable-low control, BCT/FBT logic family, 20-pin SOIC package, and 50 pF load capacitance rated for industrial applications. From $0.30 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74BCT2240NSRE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal 3-state inverting buffer/line driver with active-low output enable for high-drive bus applications
- BCT/FBT logic family offers superior speed and drive capability vs standard TTL, compatible with CMOS and TTL inputs
- 20-pin Small Outline Package (SOIC) with 50 pF rated load capacitance, ideal for space-constrained PCB designs
- Pb-free (RoHS compliant) construction with unidirectional count direction supporting simplified bus management
Applications
The SN74BCT2240NSRE4 is widely used in data bus buffering and driving applications where high-current 3-state outputs are needed to interface microprocessors with memory or peripheral devices. Its inverting configuration and active-low enable make it suitable for address/data bus isolation in industrial control systems and embedded computing platforms. The device also finds use in signal conditioning circuits within telecommunications equipment and test instrumentation requiring reliable TTL-to-CMOS level translation.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Control Type | ENABLE LOW |
| Count Direction | UNIDIRECTIONAL |
| Family | BCT/FBT |
| JESD-30 Code | R-PDSO-G20 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS DRIVER |
| Max I(ol) | 0.012A |
| Number of Bits | 4 |
| Number of Functions | 2 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE WITH SERIES RESISTOR |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Power Supply Current-Max (ICC) | 76mA |
| Prop. Delay@Nom-Sup | 5.7ns |
| Propagation Delay (tpd) | 5.7ns |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | BICMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74BCT2240NSRE4:
Bus Driver, BCT/FBT Series, 2-Func, 4-Bit, Inverted Output, BICMOS, PDSO20
Frequently Asked Questions
What is the SN74BCT2240NSRE4 and what logic family does it belong to?
The SN74BCT2240NSRE4 is an octal 3-state inverting buffer and line driver from Texas Instruments, part of the BCT/FBT (Bipolar CMOS Technology) logic family. It features 8 channels, active-low enable control, and is designed for driving heavily loaded bus lines with a maximum output low current (IOL) of 12 mA.
What package and pin count does the SN74BCT2240NSRE4 use?
The SN74BCT2240NSRE4 comes in a 20-pin Small Outline Package (SOIC), designated JESD-30 code R-PDSO-G20. This surface-mount package is compact and suitable for high-density PCB layouts requiring robust bus driving capability with a rated load capacitance of 50 pF.
Is the SN74BCT2240NSRE4 RoHS compliant and lead-free?
Yes, the SN74BCT2240NSRE4 is fully RoHS compliant and lead-free (Pb-free code: Yes). Texas Instruments manufactures this device to meet environmental regulations, making it suitable for use in modern consumer electronics, industrial equipment, and systems requiring compliance with international environmental standards.
What are typical applications for the SN74BCT2240NSRE4?
Typical applications include microprocessor-to-memory bus buffering, address and data bus isolation in embedded systems, signal level translation between TTL and CMOS logic, and general-purpose line driving in industrial control systems. The active-low enable pin allows easy bus arbitration in multi-master designs.
Are there compatible replacement parts or alternatives for the SN74BCT2240NSRE4?
Compatible alternatives include the 74BCT240 series from other manufacturers such as ON Semiconductor or Nexperia, which share the same pinout and electrical characteristics. The SN74ABT240A from Texas Instruments is a functionally equivalent alternative in the ABT logic family, offering similar drive strength and 3-state control for drop-in replacement scenarios.
Related Guides
TPS54160DGQR Selection Guide: How to Choose a 60V Step-Down Buck Converter
Complete selection guide for the TPS54160DGQR 60V/1.5A step-down converter. Compare specs, alternatives, and sourcing options for industrial and automotive designs.
May 20, 2026
LMV932MM Dual Low-Voltage CMOS Op-Amp: Application Design Guide
Complete application design guide for the LMV932MM dual rail-to-rail CMOS op-amp: supply decoupling, RRIO design rules, stability, and recommended circuits for 1.8V–5.5V battery-powered systems.
May 20, 2026
TL084CN Equivalent and Replacements: JFET-Input Quad Op-Amp Comparison Guide
Compare TL084CN with TL074, LF347, and LM324 quad op-amps. Pin-compatible equivalents, key specs, and when to choose each for your analog design.
May 20, 2026
TPS386000RGPR Quad Voltage Supervisor: Selection and Sourcing Guide (2025)
Compare TPS386000RGPR with TPS386040RGPR, TPS3700, and TPS3823 voltage supervisors. Key specs, threshold programming, watchdog options, and sourcing tips.
May 20, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”