SN74AHC245DW Texas Instruments In Stock
SN74AHC245DW is an octal bus transceiver with 3-state outputs by Texas Instruments, featuring 8-bit bidirectional data transfer and AHC-series high-speed CMOS logic. Key specs: 2V–5.5V supply voltage, ±8mA output drive, 8ns propagation delay. From $0.222, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $0.2220(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal (8-bit) bidirectional bus transceiver with 3-state outputs
- Wide supply voltage range: 2V to 5.5V for flexible system integration
- High-speed AHC CMOS technology with 8ns typical propagation delay
- ±8mA output drive current for strong bus driving capability
- Direction and output-enable control pins for flexible bus management
- SOIC-20 (DW) package for standard PCB integration
Applications
The SN74AHC245DW is widely used in data bus buffering and level shifting applications in microcontroller and microprocessor systems. It serves as an interface between buses operating at different drive strengths, commonly found in embedded systems, industrial controllers, and communication equipment. Its 3-state outputs make it ideal for shared bus architectures where multiple devices need controlled access to a common data bus.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the SN74AHC245DW used for?
The SN74AHC245DW is an octal bus transceiver used for bidirectional 8-bit data transfer between two buses. It is commonly used in microprocessor systems, embedded controllers, and digital logic circuits where data bus buffering, level shifting, or isolation between buses is required. Its 3-state outputs allow it to be safely connected to shared buses.
What are the key electrical specifications of the SN74AHC245DW?
The SN74AHC245DW operates from a 2V to 5.5V supply voltage, making it compatible with both 3.3V and 5V systems. It provides ±8mA output drive current and features a typical propagation delay of 8ns. The device supports 8-bit bidirectional data transfer and includes an active-low output-enable (OE) pin and a direction (DIR) control pin.
What package does the SN74AHC245DW come in?
The SN74AHC245DW is available in a 20-pin SOIC (DW) wide-body package, which is well-suited for standard PCB assembly processes. Texas Instruments also offers the same function in other packages such as TSSOP (DBR suffix) and PDIP (N suffix), giving designers flexibility based on board space and assembly requirements.
What is the difference between SN74AHC245 and SN74AHCT245?
The SN74AHC245 accepts input voltages referenced to its own VCC supply, while the SN74AHCT245 (T suffix) has TTL-compatible input thresholds, allowing it to interface with 5V TTL logic when powered at 3.3V. Choose SN74AHC245DW for pure CMOS systems and SN74AHCT245 when interfacing with legacy 5V TTL devices.
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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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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.3330 | $0.33 |
| 16+ | $0.2775 | $4.44 |
| 73+ | $0.2220 | $16.21 |
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