SN74BCT640DWG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74BCT640DWG4 is an 8-bit inverting bidirectional bus transceiver from Texas Instruments in the BCT/FBT logic family. It features direction control, IOL of 24 mA at VOL=0.5V and IOH of 3 mA at VOH=2.4V, and operates with a 50 pF load capacitance. Housed in a 20-pin SOIC (R-PDSO-G20) package, it supports RoHS-compliant, high-drive bus interface designs.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- SN74BCT640DWG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SN74BCT640DWG4?
- 8-bit inverting bidirectional bus transceiver with common direction control, supporting IOL=24 mA at VOL=0.5V for high-drive bus applications
- BCT/FBT logic family combining BiCMOS speed with TTL compatibility, ideal for interfacing mixed-logic systems
- Lead-free 20-pin SOIC package (R-PDSO-G20, JESD-609 e4) for RoHS-compliant surface-mount assembly
What is SN74BCT640DWG4 used for?
The SN74BCT640DWG4 is suited for high-drive bidirectional bus interfaces in microprocessor systems, memory buses, and backplane data lines. Its high sink current capability (24 mA) makes it effective for driving heavy capacitive loads in industrial controllers and computing hardware. The part is used in data communication equipment and embedded systems where TTL-compatible, high-speed bus transceivers are required.
What are the specifications of SN74BCT640DWG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Additional Feature | DIRECTION CONTROL; IOL = 24MA @ VOL = 0.5V & IOH = 3MA @ VOH = 2.4V FOR PORT A |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | BCT/FBT |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.064A |
| Number of Bits | 8 |
| Number of Functions | 1 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | INVERTED |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 94mA |
| Prop. Delay@Nom-Sup | 6.5ns |
| Propagation Delay (tpd) | 3.7ns |
| 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 Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
Where can I find the SN74BCT640DWG4 datasheet?
SN74BCT640DWG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for SN74BCT640DWG4?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output drive capability of the SN74BCT640DWG4?
The SN74BCT640DWG4 provides an IOL of 24 mA at VOL=0.5V for Port A and IOH of 3 mA at VOH=2.4V, enabling it to drive heavy capacitive bus loads reliably in high-speed digital systems.
What logic family does the SN74BCT640DWG4 belong to?
It belongs to the BCT/FBT (BiCMOS Technology) logic family, which combines the high-speed performance of bipolar logic with CMOS power efficiency, making it compatible with both TTL and CMOS logic levels.
What package is the SN74BCT640DWG4 available in?
The SN74BCT640DWG4 is available in a 20-pin Wide SOIC package (R-PDSO-G20 per JESD-30), which is a standard surface-mount package widely used in PCB designs with space constraints.
Is the SN74BCT640DWG4 RoHS compliant?
Yes, the SN74BCT640DWG4 is lead-free (Pb-free) with JESD-609 code e4, confirming full RoHS compliance and making it suitable for environmentally regulated end products.
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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.
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