Specifications
| Type | Description |
|---|---|
| Part Number | SN74LVC8T245PWR |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | PW (TSSOP, 24), 7.8 mm × 6.4 mm |
| Function | 8-bit non-inverting bus transceiver with configurable voltage translation and 3-state outputs |
| A-port Supply Voltage Range | 1.65 to 5.5 V |
| B-port Supply Voltage Range | 1.65 to 5.5 V |
| Supported Translation Nodes | 1.8 V, 2.5 V, 3.3 V, and 5.5 V |
| Operating Free-Air Temperature | -40 to 85 °C |
| Direction Control Reference | DIR input referenced to VCCA |
| Output Enable Reference | OE input referenced to VCCA |
| Output Enable Function | Pull OE high to place all outputs in 3-state mode |
| Power-Off Protection | Ioff supports partial-power-down mode operation |
| VCC Isolation Threshold | Outputs disabled and high impedance if either VCC input is below 100 mV or floating |
| Supply Voltage Absolute Maximum | -0.5 to 6.5 V |
| Input Voltage Absolute Maximum | -0.5 to 6.5 V |
| High-Impedance or Power-Off Output Voltage Absolute Maximum | -0.5 to 6.5 V |
| Active A-Port Output Voltage Absolute Maximum | -0.5 to VCCA + 0.5 V |
| Active B-Port Output Voltage Absolute Maximum | -0.5 to VCCB + 0.5 V |
| Input Clamp Current | -50 mA, VI < 0 V |
| Output Clamp Current | -50 mA, VO < 0 V |
| Continuous Output Current | ±50 mA |
| Continuous Supply/Ground Current | ±100 mA through each VCCA, VCCB, and GND |
| Storage Temperature | -65 to 150 °C |
| Junction Temperature | 150 °C |
| ESD Rating HBM | ±4000 V, ANSI/ESDA/JEDEC JS-001, all pins |
| ESD Rating CDM | ±1000 V, JEDEC JESD22-C101, all pins |
| Data Input VIH, VCCI 1.65 V to 1.95 V | 0.65 × VCCI min |
| Data Input VIH, VCCI 2.3 V to 2.7 V | 1.7 V min |
| Data Input VIH, VCCI 3.0 V to 3.6 V | 2.0 V min |
| Data Input VIH, VCCI 4.5 V to 5.5 V | 0.7 × VCCI min |
| Data Input VIL, VCCI 1.65 V to 1.95 V | 0.35 × VCCI max |
| Data Input VIL, VCCI 2.3 V to 2.7 V | 0.7 V max |
| Data Input VIL, VCCI 3.0 V to 3.6 V | 0.8 V max |
| Data Input VIL, VCCI 4.5 V to 5.5 V | 0.3 × VCCI max |
| Control Input Voltage Range | 0 to 5.5 V |
| Input/Output Voltage Range, Active State | 0 to VCCO V |
| Input/Output Voltage Range, 3-State | 0 to 5.5 V |
| High-Level Output Current, VCCO 1.65 V to 1.95 V | -4 mA |
| High-Level Output Current, VCCO 2.3 V to 2.7 V | -8 mA |
| High-Level Output Current, VCCO 3.0 V to 3.6 V | -24 mA |
| High-Level Output Current, VCCO 4.5 V to 5.5 V | -32 mA |
| Low-Level Output Current, VCCO 1.65 V to 1.95 V | 4 mA |
| Low-Level Output Current, VCCO 2.3 V to 2.7 V | 8 mA |
| Low-Level Output Current, VCCO 3.0 V to 3.6 V | 24 mA |
| Low-Level Output Current, VCCO 4.5 V to 5.5 V | 32 mA |
| Input Transition Rise/Fall Rate, VCCI 1.65 V to 2.7 V | 20 ns/V max, fewer than 4 channels switching simultaneously |
| Input Transition Rise/Fall Rate, VCCI 3.0 V to 3.6 V | 10 ns/V max, fewer than 4 channels switching simultaneously |
| Input Transition Rise/Fall Rate, VCCI 4.5 V to 5.5 V | 5 ns/V max, fewer than 4 channels switching simultaneously |
| VOH, IOH = -100 µA | VCCO - 0.1 V min, VI = VIH, VCCA and VCCB = 1.65 V to 4.5 V |
| VOH, IOH = -4 mA | 1.2 V min, VI = VIH, VCCA = 1.65 V, VCCB = 1.65 V |
| VOH, IOH = -8 mA | 1.9 V min, VI = VIH, VCCA = 2.3 V, VCCB = 2.3 V |
| VOH, IOH = -24 mA | 2.4 V min, VI = VIH, VCCA = 3 V, VCCB = 3 V |
| VOH, IOH = -32 mA | 3.8 V min, VI = VIH, VCCA = 4.5 V, VCCB = 4.5 V |
| VOL, IOL = 100 µA | 0.1 V max, VI = VIL, VCCA and VCCB = 1.65 V to 4.5 V |
| VOL, IOL = 4 mA | 0.45 V max, VI = VIL, VCCA = 1.65 V, VCCB = 1.65 V |
| VOL, IOL = 8 mA | 0.3 V max, VI = VIL, VCCA = 2.3 V, VCCB = 2.3 V |
| VOL, IOL = 24 mA | 0.55 V max, VI = VIL, VCCA = 3 V, VCCB = 3 V |
| VOL, IOL = 32 mA | 0.55 V max, VI = VIL, VCCA = 4.5 V, VCCB = 4.5 V |
| Input Current DIR | ±1 µA typ, ±2 µA max; VI = VCCA or GND |
| Power-Off Leakage Current Ioff, VCCA = 0 V | ±1 µA typ, ±2 µA max; A or B port, VI or VO = 0 to 5.5 V, VCCB = 0 to 5.5 V |
| Power-Off Leakage Current Ioff, VCCB = 0 V | ±1 µA typ, ±2 µA max; A or B port, VI or VO = 0 to 5.5 V, VCCA = 0 to 5.5 V |
| 3-State Output Leakage Current IOZ | ±1 µA typ, ±2 µA max; A or B port, VO = VCCO or GND, OE = VIH |
| Pin Count | 24 pins |
| A-Port Pins | A1-A8 on pins 3-10 |
| B-Port Pins | B1-B8 on pins 21, 20, 19, 18, 17, 16, 15, 14 |
| Power Pins | VCCA pin 1; VCCB pins 23 and 24 |
| Ground Pins | Pins 11, 12, and 13 |
| Datasheet Status | request_only |
Product Overview
SN74LVC8T245PWR is a Texas Instruments 8-bit non-inverting bus transceiver for configurable voltage translation between two supply domains. VCCA and VCCB each operate from 1.65 V to 5.5 V, enabling translation across 1.8 V, 2.5 V, 3.3 V, and 5.5 V logic nodes. The device uses 3-state outputs, with DIR and OE control inputs referenced to VCCA.
The output-enable function places all outputs in high-impedance mode when OE is pulled high. The device also supports Ioff partial-power-down operation, and its VCC isolation feature disables outputs if either supply input is below 100 mV or floating.
The PW package option for SN74LVC8T245PWR is a 24-pin TSSOP measuring 7.8 mm × 6.4 mm. A1-A8 are on pins 3-10, B1-B8 are on pins 21, 20, 19, 18, 17, 16, 15, and 14, VCCA is on pin 1, VCCB is on pins 23 and 24, and ground is on pins 11, 12, and 13.
Key Features
- 8-bit non-inverting bus transceiver function
- Configurable voltage translation with 3-state outputs
- VCCA and VCCB each support 1.65 to 5.5 V
- Supports 1.8 V, 2.5 V, 3.3 V, and 5.5 V nodes
- DIR and OE control inputs referenced to VCCA
- OE high places all outputs in 3-state mode
- Ioff supports partial-power-down mode operation
- Outputs disable below 100 mV or floating supply
- PW TSSOP-24 package, 7.8 mm × 6.4 mm
- -40 to 85 °C operating free-air temperature
Typical Applications
- Bidirectional voltage-level translation
- Multi-voltage digital buses
- 1.8 V to 5.5 V logic interfaces
- 3-state shared bus connections
- Partial-power-down signal isolation
- A-port to B-port data translation
- Control through VCCA-referenced DIR and OE
Procurement Notes
When requesting a quote for SN74LVC8T245PWR, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What type of device is SN74LVC8T245PWR?
SN74LVC8T245PWR is an 8-bit dual-supply, non-inverting bus transceiver from Texas Instruments. It provides configurable voltage translation between A-port and B-port supplies and includes 3-state outputs.
What supply range does each port support?
Both the A-port supply VCCA and B-port supply VCCB are specified for 1.65 V to 5.5 V operation. The device supports translation nodes at 1.8 V, 2.5 V, 3.3 V, and 5.5 V.
How is output-enable control handled on this device?
The OE input is referenced to VCCA. Pulling OE high places all outputs in 3-state mode, allowing the A and B bus pins to enter a high-impedance condition.
What package is used for SN74LVC8T245PWR?
SN74LVC8T245PWR uses the PW package option, a 24-pin TSSOP package measuring 7.8 mm × 6.4 mm. A-port pins are on pins 3-10 and B-port pins are on pins 21 through 14.
Does SN74LVC8T245PWR support power-off protection?
Yes. The device includes Ioff support for partial-power-down mode operation. Outputs are disabled to help prevent damaging current backflow when the device is powered down.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.