Specifications
| Type | Description |
|---|---|
| Part Number | SN74LVCH16T245_Bus |
| Manufacturer | Texas Instruments |
| Product Type | I2C Switch |
| Category | Signal Chain |
| Package / Case | SSOP-48 15.88 mm x 7.49 mm; TSSOP-48 12.50 mm x 6.10 mm; TVSOP-48 9.70 mm x 4.40 mm; BGA-56 7.00 mm x 4.50 mm |
| Function | 16-bit noninverting dual-supply bus transceiver with configurable voltage translation and tri-state outputs |
| Operating free-air temperature | -40 to 85 °C; recommended operating conditions |
| Absolute maximum supply voltage | -0.5 to 6.5 V; VCCA or VCCB |
| A-port supply voltage range | 1.65 to 5.5 V; A port tracks VCCA |
| B-port supply voltage range | 1.65 to 5.5 V; B port tracks VCCB |
| ESD rating, HBM | ±2000 V; per ANSI/ESDA/JEDEC JS-001 |
| ESD rating, CDM | ±1000 V; per JEDEC JESD22-C101 |
| Bus-hold feature | Active bus-hold circuitry on data inputs |
| Partial-power-down support | Ioff circuitry disables outputs during power down |
| Datasheet Status | request_only |
Product Overview
The SN74LVCH16T245_Bus is a Texas Instruments 16-bit noninverting dual-supply bus transceiver in the Interface category. It provides configurable voltage translation between low-voltage nodes, with supported translation nodes of 1.8 V, 2.5 V, 3.3 V, and 5 V. The A port tracks VCCA and the B port tracks VCCB, with each supply specified from 1.65 to 5.5 V under recommended operating conditions.
Control pins 1DIR, 2DIR, 1OE, and 2OE are referenced to VCCA. When OE is pulled high, all outputs are high impedance. The device also places all outputs in high impedance when either VCC input is at GND, supporting isolation across powered and unpowered domains.
Package options cover SSOP-48, TSSOP-48, TVSOP-48, and BGA-56 mechanical formats. Electrical details include active bus-hold circuitry on data inputs, Ioff circuitry for partial-power-down protection, JESD78 Class II latch-up performance greater than 100 mA, and an operating free-air temperature range of -40 to 85 °C.
Key Features
- 16-bit noninverting dual-supply bus transceiver
- Configurable voltage translation with tri-state outputs
- A and B ports support 1.65 to 5.5 V
- Supports 1.8 V, 2.5 V, 3.3 V, and 5 V nodes
- Control pins are referenced to VCCA
- Outputs high-impedance when OE is pulled high
- Outputs high-impedance when either VCC input is grounded
- Active bus-hold circuitry on data inputs
- Ioff circuitry disables outputs during partial power down
- JESD78 Class II latch-up performance greater than 100 mA
Typical Applications
- Mixed-voltage bus translation
- 1.8 V to 5 V logic interfaces
- Bidirectional digital bus transceivers
- Tri-state bus isolation
- Partial-power-down bus systems
- Undriven data input holding
- Multi-supply interface designs
Procurement Notes
When requesting a quote for SN74LVCH16T245_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 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 SN74LVCH16T245_Bus?
SN74LVCH16T245_Bus is a Texas Instruments 16-bit noninverting dual-supply bus transceiver with configurable voltage translation and tri-state outputs for Interface applications.
What supply ranges are supported on the A and B ports?
Both the A-port supply and B-port supply are specified from 1.65 to 5.5 V under recommended operating conditions. The A port tracks VCCA, while the B port tracks VCCB.
What happens when OE is pulled high?
When OE is pulled high, all outputs enter the high-impedance state. The device also places all outputs in high impedance when either VCC input is at GND.
Which package options are listed for this device?
The listed package options are SSOP-48 15.88 mm x 7.49 mm, TSSOP-48 12.50 mm x 6.10 mm, TVSOP-48 9.70 mm x 4.40 mm, and BGA-56 7.00 mm x 4.50 mm.
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.