SN74HC245PWR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74HC245PWR is an octal bidirectional bus transceiver with 3-state outputs from Texas Instruments, part of the HC/UH CMOS logic family, supporting a load capacitance of 150 pF and common direction control. It enables reliable 8-bit data transfer between two buses in either direction with output disable capability. Available in a 20-pin SOIC tape-and-reel package with worldwide distribution.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74HC245PWR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Octal (8-bit) bidirectional bus transceiver with 3-state outputs for controlled data flow isolation
- HC/UH CMOS family with 150 pF load capacitance support for driving long PCB traces
- Common direction control pin (DIR) for simple bus turnaround in bidirectional data bus applications
- 20-pin SOIC package in tape-and-reel for high-volume SMT production with RoHS compliance
Applications
The SN74HC245PWR is widely used for bidirectional data bus buffering between microprocessors, memory, and peripheral interfaces in embedded systems and digital logic designs. Its 3-state outputs allow the device to be disconnected from the bus, enabling multiple transceivers to share the same data lines without contention. It is commonly found in industrial controllers, computer motherboards, and communication equipment requiring level-compatible 8-bit parallel data transfer.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 150pF |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.0078A |
| Number of Bits | 8 |
| Number of Functions | 8 |
| Number of Ports | 2 |
| Output Characteristics | 3-STATE |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP20,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.08mA |
| Prop. Delay@Nom-Sup | 22ns |
| Propagation Delay (tpd) | 170ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 6V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| 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 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74HC245PWR:
Frequently Asked Questions
What is the data width and direction capability of the SN74HC245PWR?
The SN74HC245PWR is an 8-bit (octal) bidirectional bus transceiver. The direction of data transfer is controlled by a common DIR pin, allowing the device to pass data from A-to-B or B-to-A buses depending on the logic state applied.
What are 3-state outputs and why are they important in the SN74HC245PWR?
3-state outputs allow the SN74HC245PWR to present a high-impedance state on the bus when disabled via the OE pin, effectively disconnecting the device from the bus. This is essential in multi-master bus architectures to avoid bus contention and allow safe data sharing.
What is the package type and form factor for the SN74HC245PWR?
The SN74HC245PWR is housed in a 20-pin SOIC package (R-PDSO-G20) provided in tape-and-reel format (PWR suffix), making it ideal for automated SMT assembly in high-volume electronics manufacturing.
Is the SN74HC245PWR RoHS compliant?
Yes, the SN74HC245PWR is Pb-free and RoHS compliant (JESD-609 code e4), suitable for use in lead-free manufacturing processes and compliant with European RoHS and global environmental regulations for electronics.
What logic family does the SN74HC245PWR belong to and what are its key electrical characteristics?
It belongs to the HC/UH (High-Speed CMOS) logic family, featuring a maximum output low current (I_ol) of 7.8 mA and a load capacitance of 150 pF, ensuring robust drive capability for standard logic-level data bus applications in 2 V to 6 V supply environments.
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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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