SN74LVC245APWR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74LVC245APWR is an octal bidirectional bus transceiver with 3-state outputs from Texas Instruments, designed for 1.65 V to 3.6 V LVC-family logic voltage translation. It provides direction control via a dedicated DIR pin and features high-speed operation with 50 pF load capacitance and TSSOP-20 package. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- SN74LVC245APWR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2100(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
- Bidirectional 8-bit data bus buffering with dedicated DIR control pin enables flexible A-to-B or B-to-A signal direction in mixed-voltage designs
- 3-state outputs allow multiple transceivers to share a common bus without signal contention
- LVC-family technology supports 1.65 V to 3.6 V operation with 5 V tolerant inputs for easy 3.3 V-to-5 V level translation
- Low propagation delay and high output drive strength suitable for high-speed bus applications at 50 pF load capacitance
- TSSOP-20 surface-mount package (PWR suffix) offers a compact PCB footprint for high-density board designs
Applications
The SN74LVC245APWR is a standard choice for bidirectional bus buffering between microcontrollers, FPGAs, and memory devices operating at different logic voltages, particularly in 3.3 V-to-5 V interface applications. It is extensively used in embedded systems, single-board computers, and development boards where multiple peripherals share a data bus and directional isolation is required. The device also appears in industrial I/O expansion boards, address/data bus isolation for memories, and general-purpose level translation in automotive and communications equipment.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | WITH DIRECTION CONTROL |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Family | LVC/LCX/Z |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | BUS TRANSCEIVER |
| Max I(ol) | 0.024A |
| 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) | 0.03mA |
| Prop. Delay@Nom-Sup | 6.3ns |
| Propagation Delay (tpd) | 13.7ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 1.65V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| 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 |
| ## SN74LVC245APWR Alternates Showing results | Image |
| 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 SN74LVC245APWR:
suggested
suggested
suggested
suggested
Bus Transceiver, LVC/LCX/Z Series, 8-Func, 8-Bit, True Output, CMOS, PDSO20
Bus Transceiver, LVC/LCX/Z Series, 8-Func, 8-Bit, True Output, CMOS, PDSO20
Bus Transceiver, LVC/LCX/Z Series, 8-Func, 8-Bit, True Output, CMOS, PDSO20
Frequently Asked Questions
What is the supply voltage range of the SN74LVC245APWR?
The SN74LVC245APWR operates from a supply voltage of 1.65 V to 3.6 V, placing it in Texas Instruments' LVC (Low-Voltage CMOS) family. Its inputs are 5 V tolerant, making it ideal for translating between 3.3 V and 5 V logic systems without the need for additional level-shifting components.
How does the direction control work on the SN74LVC245APWR?
The SN74LVC245APWR uses a dedicated DIR (direction) pin to control data flow between the A and B ports. When DIR is high, data flows from A to B; when DIR is low, data flows from B to A. An OE (output enable) pin, active low, places all outputs in a high-impedance 3-state condition to release the bus.
What package does the SN74LVC245APWR use?
The SN74LVC245APWR comes in a 20-pin TSSOP (Thin Shrink Small Outline Package), identified by the 'PWR' suffix. This compact surface-mount package has a 0.65 mm pin pitch and is well suited for high-density PCB layouts in space-constrained embedded systems.
Is the SN74LVC245APWR RoHS compliant and lead-free?
Yes, the SN74LVC245APWR is RoHS compliant and lead-free, as indicated by its JESD-609 code 'e4' and Pb-free designation. It is manufactured using a green, halogen-free process and is suitable for use in environmentally regulated end products in consumer, industrial, and automotive markets.
What are common alternatives or pin-compatible replacements for the SN74LVC245APWR?
Common pin-compatible alternatives include the 74LVC245 from NXP Semiconductors (74LVC245APW), ON Semiconductor (MC74LVC245ADT), and Diodes Inc (74LVC245AT20-13). All share the same 20-pin TSSOP pinout and LVC logic family specifications, though users should verify timing, drive strength, and ESD ratings when substituting.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.8180 | $0.82 |
| 16+ | $0.3681 | $5.89 |
| 100+ | $0.2712 | $27.12 |
| 137+ | $0.2454 | $33.62 |
| 250+ | $0.2400 | $60.00 |
| 500+ | $0.2100 | $105.00 |
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