Specifications
| Type | Description |
|---|---|
| Part Number | SN74AVC4T245_Bus |
| Manufacturer | Texas Instruments |
| Product Type | Level Shifter |
| Category | Logic |
| Package/Case | D SOIC-16 9.9 mm x 6 mm; DGV TVSOP-16 3.6 mm x 6.4 mm; PW TSSOP-16 5 mm x 6.4 mm; RGY WQFN-16 4 mm x 3.5 mm; RSV UQFN-16 2.6 mm x 1.8 mm; BQB WQFN-16 3.5 mm x 2.5 mm; DYY SOT-16 4.2 mm x 2 mm |
| Datasheet Part Number | SN74AVC4T245 |
| Function | 4-bit noninverting bus transceiver with configurable voltage translation and 3-state outputs |
| A-Port Supply Voltage | 1.2 V to 3.6 V |
| B-Port Supply Voltage | 1.2 V to 3.6 V |
| Optimized Supply Range | 1.4 V to 3.6 V |
| Minimum Operational Supply | 1.2 V |
| I/O Tolerance | 4.6 V tolerant |
| Maximum Data Rate | 380 Mbps, 1.8 V to 3.3 V translation |
| Maximum Data Rate | 200 Mbps, <1.8 V to 3.3 V translation |
| Maximum Data Rate | 200 Mbps, translation to 2.5 V or 1.8 V |
| Maximum Data Rate | 150 Mbps, translation to 1.5 V |
| Maximum Data Rate | 100 Mbps, translation to 1.2 V |
| Direction Control Reference | Referenced to VCCA |
| Output Enable Reference | Referenced to VCCA |
| Partial Power-Down Support | Ioff circuitry disables outputs to prevent damaging current backflow |
| VCC Isolation | Both ports high impedance if either VCC input is at GND |
| High-Impedance Control | Tie OE to VCC through pullup resistor |
| Latch-Up Performance | >100 mA per JESD78 Class II |
| ESD Rating HBM | 8 kV, ANSI/ESDA/JEDEC JS-001, all pins |
| ESD Rating CDM | 1 kV, JEDEC JESD22-C101, all pins |
| ESD Rating Machine Model | 150 V |
| Absolute Maximum Supply Voltage | -0.5 V to 4.6 V, VCCA and VCCB |
| Absolute Maximum Input Voltage | -0.5 V to 4.6 V, A-port I/O, B-port I/O, and control inputs |
| Absolute Maximum High-Impedance Output Voltage | -0.5 V to 4.6 V, any output in high-impedance or power-off state |
| Absolute Maximum Active Output Voltage | A port: -0.5 V to VCCA + 0.5 V; B port: -0.5 V 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 absolute maximum IO |
| Continuous Supply or Ground Current | +/-100 mA through VCCA, VCCB, or GND |
| Operating Free-Air Temperature | -40 °C to 85 °C |
| Storage Temperature | -65 °C to 150 °C |
| Data Input VIH | 0.65 x VCCI min; 1.6 V min; 2 V min |
| Data Input VIL | 0.35 x VCCI max; 0.7 V max; 0.8 V max |
| DIR Input VIH | 0.65 x VCCA min; 1.6 V min; 2 V min |
| DIR Input VIL | 0.35 x VCCA max; 0.7 V max; 0.8 V max |
| Input Voltage | 0 V to 3.6 V recommended VI |
| Output Voltage | Active: 0 V to VCCO; 3-state: 0 V to 3.6 V |
| High-Level Output Current | -3 mA, -6 mA, -8 mA, -9 mA, -12 mA |
| Low-Level Output Current | 3 mA, 6 mA, 8 mA, 9 mA, 12 mA |
| Input Transition Rise or Fall Rate | 5 ns/V max |
| VOH | VCCO - 0.2 V min, IOH = -100 uA |
| VOH | 0.95 V min; 1.05 V min; 1.2 V min; 1.75 V min; 2.3 V min |
| VOL | 0.2 V max, IOL = 100 uA |
| VOL | 0.25 V max; 0.35 V max; 0.45 V max; 0.55 V max; 0.7 V max |
| Control Input Leakage Current | +/-0.025 uA typ, +/-0.25 uA max at 25 °C; +/-1 uA max from -40 °C to 85 °C |
| Power-Off Leakage Current | +/-0.1 uA typ, +/-1 uA max at 25 °C; +/-5 uA max from -40 °C to 85 °C |
| 3-State Output Leakage Current | +/-0.5 uA typ, +/-2.5 uA max at 25 °C; +/-5 uA max from -40 °C to 85 °C |
| Supply Current ICCA | 8 uA max; -2 uA max when VCCA = 0 V and VCCB powered |
| Supply Current ICCB | 8 uA max; -2 uA max when VCCB = 0 V and VCCA powered |
| Total Supply Current | 16 uA max |
| Control Input Capacitance | 3.5 pF typ, 4.5 pF max |
| A/B Port Capacitance | 6 pF typ, 7 pF max |
| Junction-to-Ambient Thermal Resistance | D 85.5 °C/W; BQB 80.8 °C/W; DYY 163.4 °C/W; DGV 126.0 °C/W; PW 102.8 °C/W; RGY 68.8 °C/W; RSV 146.9 °C/W |
| Junction-to-Case Top Thermal Resistance | D 46.9 °C/W; BQB 77.9 °C/W; DYY 90.0 °C/W; DGV 50.8 °C/W; PW 35.9 °C/W; RGY 70.6 °C/W; RSV 53.6 °C/W |
| Package Options | SOIC-16, TVSOP-16, TSSOP-16, WQFN-16, UQFN-16, SOT-16 |
| Datasheet Status | request_only |
Product Overview
SN74AVC4T245_Bus is based on the Texas Instruments SN74AVC4T245, a 4-bit noninverting bus transceiver with configurable voltage translation and 3-state outputs. The device uses separate A-port and B-port supply rails, each specified from 1.2 V to 3.6 V, with optimized operation from 1.4 V to 3.6 V.
The direction and output-enable control inputs are referenced to VCCA. The I/O pins are 4.6 V tolerant, and the device supports multiple translation data-rate conditions, including 380 Mbps for 1.8 V to 3.3 V translation and lower maximum rates for translation to 1.5 V or 1.2 V.
Package coverage includes SOIC-16, TVSOP-16, TSSOP-16, WQFN-16, UQFN-16, and SOT-16 formats with listed thermal resistance values for 16-pin package variants. Electrical limits include ESD ratings of 8 kV HBM, 1 kV CDM, and 150 V machine model, plus latch-up performance greater than 100 mA per JESD78 Class II. The part supports powered-down operation through Ioff circuitry and places both ports in high impedance if either VCC input is at GND.
Key Features
- 4-bit noninverting bus transceiver with 3-state outputs
- Configurable voltage translation between A and B ports
- A-port and B-port supplies support 1.2 V to 3.6 V
- Optimized supply operation from 1.4 V to 3.6 V
- I/O pins specified as 4.6 V tolerant
- Maximum 380 Mbps for 1.8 V to 3.3 V translation
- Ioff circuitry supports partial power-down operation
- VCC isolation places both ports in high impedance
- DIR and OE control inputs referenced to VCCA
- 8 kV HBM and 1 kV CDM ESD ratings
Typical Applications
- Logic-level voltage translation
- Bidirectional bus interface bridging
- Mixed-voltage digital systems
- 3-state bus isolation
- Power-down protected interfaces
- Low-voltage processor I/O translation
- Compact 16-pin interface designs
Procurement Notes
When requesting a quote for SN74AVC4T245_Bus, 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 MCU, processor and logic IC sourcing, package, operating voltage, temperature grade, speed or frequency grade, firmware or mask version, lifecycle status and programming requirements should be checked before approval.
FAQ
What function does the SN74AVC4T245_Bus provide?
The datasheet identifies the SN74AVC4T245 as a 4-bit noninverting bus transceiver with configurable voltage translation and 3-state outputs, used as a dual-bit bus transceiver voltage translator in Interface applications.
What supply voltage range is specified for both ports?
Both the A-port supply VCCA and B-port supply VCCB are specified from 1.2 V to 3.6 V. The optimized operating range for VCCA and VCCB is listed as 1.4 V to 3.6 V.
What packages are listed for this Texas Instruments device?
The package options listed in the extracted datasheet facts are SOIC-16, TVSOP-16, TSSOP-16, WQFN-16, UQFN-16, and SOT-16, with package dimensions provided for D, DGV, PW, RGY, RSV, BQB, and DYY variants.
How does the device behave during partial power-down conditions?
The datasheet facts state that Ioff circuitry disables outputs to prevent damaging current backflow during powered-down operation. They also state that both ports become high impedance if either VCC input is at GND.
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.