SN74LV245APWRIn StockTexas Instruments
Texas Instruments SN74LV245APWR is an 8-bit non-inverting bidirectional bus transceiver supporting 2V to 5.5V operation with 3-state outputs and common direction control. Features low-voltage LVTTL logic, 50pF load capacitance, and 16mA output drive in a 20-pin TSSOP package. From $0.14 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74LV245APWR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1376(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8-bit bidirectional bus transceiver with non-inverting LVTTL logic for reliable signal buffering
- Wide supply voltage range of 2V to 5.5V enabling mixed-voltage system compatibility
- 3-state outputs with common direction/output-enable control for shared bus applications
- 16mA output drive current (I_OL) suitable for driving standard TTL and CMOS loads
- Compact 20-pin TSSOP package (RoHS compliant) for high-density PCB designs
Applications
The SN74LV245APWR is widely used in microprocessor and microcontroller data bus buffering, allowing bidirectional data transfer between CPU buses and peripheral devices. It is ideal for level shifting between 3.3V and 5V logic domains in mixed-supply systems such as industrial controllers, communication equipment, and embedded computing boards. The device also finds application in memory address/data bus expansion and backplane signal routing where 3-state isolation is required.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | LV/LV-A/LVX/H |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.016A |
| 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, 13 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.02mA |
| Prop. Delay@Nom-Sup | 11ns |
| Propagation Delay (tpd) | 18ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| 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 SN74LV245APWR:
Bus Transceiver, LV/LV-A/LVX/H Series, 8-Func, 8-Bit, True Output, CMOS, PDSO20
Bus Transceiver, LV/LV-A/LVX/H Series, 8-Func, 8-Bit, True Output, CMOS, PDSO20
Frequently Asked Questions
What is the supply voltage range of the SN74LV245APWR?
The SN74LV245APWR operates over a wide supply voltage range of 2V to 5.5V, making it compatible with both 3.3V and 5V logic systems. This flexibility allows it to interface between different voltage domains without additional level-shifting components.
Can the SN74LV245APWR be used for bidirectional data bus buffering?
Yes, the SN74LV245APWR is specifically designed for bidirectional bus buffering. It features a DIRECTION (DIR) control pin that selects the data flow direction and an OUTPUT ENABLE (OE) pin that places all outputs in a high-impedance 3-state condition, making it ideal for shared bus architectures in microprocessor systems.
What package does the SN74LV245APWR come in and what are its key dimensions?
The SN74LV245APWR is housed in a 20-pin TSSOP (Thin Shrink Small Outline Package) with a 0.65mm pin pitch. This compact surface-mount package is RoHS compliant (Pb-free, e4 JEDEC code) and is suitable for space-constrained PCB layouts in consumer electronics and industrial designs.
What is the maximum output current of the SN74LV245APWR?
The SN74LV245APWR provides a maximum low-level output current (I_OL) of 16mA (0.016A) and supports a load capacitance (CL) of up to 50pF. These drive characteristics make it compatible with standard TTL and CMOS loads commonly found in digital system designs.
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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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