Specifications
| Type | Description |
|---|---|
| Part Number | SN74AVC4T774 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| Category | Signal Chain |
| Package / Case | PW (TSSOP-16) 5 mm x 6.4 mm; RGY (VQFN-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 |
| Channel Count | 4-bit; noninverting bus transceiver with independent direction control per channel |
| Voltage Translation Type | Dual-supply configurable voltage-level shifting; A port tracks VCCA and B port tracks VCCB |
| A-Port Supply Voltage Range | 1.1 V to 3.6 V; VCCA recommended operating range |
| B-Port Supply Voltage Range | 1.1 V to 3.6 V; VCCB recommended operating range |
| Optimized Operating Supply Range | 1.4 V to 3.6 V; VCCA/VCCB optimized operating range |
| Minimum Operational Supply Voltage | 1.2 V; operational with VCCA/VCCB as low as 1.2 V |
| Supported Voltage Nodes | 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V; universal low-voltage bidirectional translation |
| I/O Voltage Tolerance | 4.6 V tolerant; A-port and B-port I/Os |
| Control Input Reference | VCCA; DIR1, DIR2, DIR3, DIR4, and OE supplied/referenced by VCCA |
| Output Enable Function | OE high places all outputs in 3-state mode; OE referenced to VCCA |
| Direction Control Function | DIRx controls signal flow for each A/B I/O channel; DIR1 controls A1/B1, DIR2 controls A2/B2, DIR3 controls A3/B3, DIR4 controls A4/B4 |
| Typical Data Rate | 380 Mbps; 1.8 V to 3.3 V translation |
| Typical Data Rate | 200 Mbps; less than 1.8 V to 3.3 V translation |
| Typical Data Rate | 200 Mbps; translation to 2.5 V or 1.8 V |
| Typical Data Rate | 150 Mbps; translation to 1.5 V |
| Typical Data Rate | 100 Mbps; translation to 1.2 V |
| Partial Power-Down Support | Ioff circuitry supported; disables outputs to prevent damaging current backflow when powered down |
| VCC Isolation | Both ports high-impedance if either VCC input is at GND |
| Latch-Up Performance | >100 mA; per JESD 78, Class II |
| ESD Rating HBM | ±8000 V; human body model, ANSI/ESDA/JEDEC JS-001 / A114-A |
| ESD Rating CDM | ±1000 V; charged device model, JEDEC JESD22-C101 |
| ESD Rating Machine Model | 250 V; machine model A115-A |
| Absolute Maximum Supply Voltage | -0.5 V to 4.6 V; VCCA and VCCB over operating free-air temperature range |
| 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 or Power-Off Output Voltage | -0.5 V to 4.6 V; A port and B port |
| Absolute Maximum Active Output Voltage | -0.5 V to VCCA + 0.5 V; A-port output in high or low state |
| Absolute Maximum Active Output Voltage | -0.5 V to VCCB + 0.5 V; B-port output in high or low state |
| Input Clamp Current | -50 mA; VI < 0 V |
| Output Clamp Current | -50 mA; VO < 0 V |
| Continuous Output Current | ±50 mA; absolute maximum rating |
| Continuous Supply/Ground Current | ±100 mA; through VCCA, VCCB, or GND |
| Junction Temperature | 150 °C; absolute maximum rating |
| Storage Temperature Range | -65 °C to 150 °C; absolute maximum rating |
| High-Level Input Voltage | 0.65 x VCCI min; data inputs, VCCI = 1.1 V to 1.95 V |
| High-Level Input Voltage | 1.6 V min; data inputs, VCCI = 1.95 V to 2.7 V |
| High-Level Input Voltage | 2 V min; data inputs, VCCI = 2.7 V to 3.6 V |
| Low-Level Input Voltage | 0.35 x VCCI max; data inputs, VCCI = 1.1 V to 1.95 V |
| Low-Level Input Voltage | 0.7 V max; data inputs, VCCI = 1.95 V to 2.7 V |
| Low-Level Input Voltage | 0.8 V max; data inputs, VCCI = 2.7 V to 3.6 V |
| Input Voltage Range | 0 V to 3.6 V; recommended operating condition, VI |
| Output Voltage Range | 0 V to VCCO; active state |
| Output Voltage Range | 0 V to 3.6 V; 3-state mode |
| High-Level Output Current | -3 mA; VCCO = 1.1 V to 1.3 V |
| High-Level Output Current | -6 mA; VCCO = 1.4 V to 1.6 V |
| High-Level Output Current | -8 mA; VCCO = 1.65 V to 1.95 V |
| High-Level Output Current | -9 mA; VCCO = 2.3 V to 2.7 V |
| High-Level Output Current | -12 mA; VCCO = 3 V to 3.6 V |
| Low-Level Output Current | 3 mA; VCCO = 1.1 V to 1.3 V |
| Low-Level Output Current | 6 mA; VCCO = 1.4 V to 1.6 V |
| Low-Level Output Current | 8 mA; VCCO = 1.65 V to 1.95 V |
| Low-Level Output Current | 9 mA; VCCO = 2.3 V to 2.7 V |
| Low-Level Output Current | 12 mA; VCCO = 3 V to 3.6 V |
| Input Transition Rise/Fall Rate | 5 ns/V max; recommended operating condition |
| Operating Free-Air Temperature | -40 °C to 85 °C; recommended operating condition |
| Thermal Resistance RθJA | 68.8 °C/W; PW TSSOP-16 package |
| Thermal Resistance RθJA | 139.2 °C/W; RGY VQFN-16 package |
| Thermal Resistance RθJA | 163.4 °C/W; RSV UQFN-16 package |
| Thermal Resistance RθJA | 79.1 °C/W; DYY SOT-16 package |
| Thermal Resistance RθJA | 102.8 °C/W; BQB WQFN-16 package |
| Datasheet Status | request_only |
Product Overview
The SN74AVC4T774 is a Texas Instruments 4-bit dual-supply bus transceiver in the Signal_Chain category. It provides noninverting bidirectional translation with independent direction control on each channel: DIR1 through DIR4 control the corresponding A1/B1 through A4/B4 paths. The A port follows VCCA, the B port follows VCCB, and DIR and OE control inputs are referenced to VCCA.
Both VCCA and VCCB have recommended operating ranges of 1.1 V to 3.6 V, with optimized operation from 1.4 V to 3.6 V and operation specified as low as 1.2 V. Supported voltage nodes include 1.2 V, 1.5 V, 1.8 V, 2.5 V, and 3.3 V. Typical data rates are 380 Mbps for 1.8 V to 3.3 V translation, 200 Mbps for selected lower-voltage translations, 150 Mbps to 1.5 V, and 100 Mbps to 1.2 V.
The device is available in PW TSSOP-16, RGY VQFN-16, RSV UQFN-16, BQB WQFN-16, and DYY SOT-16 packages. It includes Ioff partial-power-down support and VCC isolation, placing both ports in high impedance if either VCC input is at GND.
Key Features
- 4-bit noninverting bus transceiver architecture
- Dual-supply configurable voltage-level shifting
- A port tracks VCCA; B port tracks VCCB
- Independent DIR control for each A/B channel
- OE high places all outputs in 3-state mode
- 1.1 V to 3.6 V recommended supply ranges
- Supports 1.2 V through 3.3 V voltage nodes
- 4.6 V tolerant A-port and B-port I/Os
- Ioff circuitry supports partial-power-down operation
- VCC isolation sets both ports high impedance
Typical Applications
- Bidirectional voltage-level translation
- Low-voltage bus transceiver interfaces
- 1.2 V to 3.3 V signal bridging
- Independent four-channel direction control
- 3-state bus isolation
- Partial-power-down signal paths
- Mixed-supply digital interfaces
Procurement Notes
When requesting a quote for SN74AVC4T774, 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 the SN74AVC4T774?
The SN74AVC4T774 is a Texas Instruments 4-bit dual-supply bus transceiver. It provides noninverting bidirectional voltage-level shifting, with the A port tracking VCCA and the B port tracking VCCB.
What supply voltage ranges does SN74AVC4T774 support?
Both VCCA and VCCB have recommended operating ranges of 1.1 V to 3.6 V. The optimized operating range is 1.4 V to 3.6 V, and operation is specified with supplies as low as 1.2 V.
How is direction controlled on this transceiver?
Each channel has independent direction control. DIR1 controls A1/B1, DIR2 controls A2/B2, DIR3 controls A3/B3, and DIR4 controls A4/B4. The DIR and OE control inputs are referenced to VCCA.
What happens when OE is high?
When OE is high, all outputs are placed in 3-state mode. OE is referenced to VCCA, matching the control input reference used by DIR1 through DIR4.
Which packages are listed for SN74AVC4T774?
Package options include PW TSSOP-16 at 5 mm x 6.4 mm, RGY VQFN-16 at 4 mm x 3.5 mm, RSV UQFN-16 at 2.6 mm x 1.8 mm, BQB WQFN-16 at 3.5 mm x 2.5 mm, and DYY SOT-16 at 4.2 mm x 2 mm.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: July 8, 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.