Specifications
| Type | Description |
|---|---|
| Part Number | SN74LVCH16T245 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| 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 bus transceiver with configurable level shifting and tri-state outputs; condition: dual-supply A/B bus translation |
| A-Port Supply Voltage Range | 1.65 to 5.5 V; condition: VCCA operating range |
| B-Port Supply Voltage Range | 1.65 to 5.5 V; condition: VCCB operating range |
| Supported Voltage Translation Nodes | 1.8 V, 2.5 V, 3.3 V, 5 V; condition: bidirectional translation between low-voltage nodes |
| Control Pin Supply Reference | VCCA; condition: 1DIR, 2DIR, 1OE, 2OE inputs |
| VCC Isolation Behavior | All outputs high-impedance if either VCC input is at GND; condition: VCCA or VCCB at GND |
| Input/Output Tolerance | Overvoltage-tolerant inputs and outputs; condition: mixed-voltage-mode data communications |
| Bus Hold | Active bus-hold circuitry on data inputs; eliminates need for external pullup/pulldown resistors; use with pullup/pulldown not recommended |
| Partial-Power-Down Support | Ioff supports partial-power-down operation; outputs disabled to prevent damaging current backflow when powered down |
| Latch-Up Performance | >100 mA; condition: per JESD78 Class II |
| ESD Rating HBM | ±2000 V; condition: human-body model per ANSI/ESDA/JEDEC JS-001 |
| ESD Rating CDM | ±1000 V; condition: charged-device model per JEDEC JESD22-C101 |
| ESD Rating MM | ±200 V; condition: machine model per JEDEC JESD22-A115-A |
| Absolute Maximum Supply Voltage | -0.5 to 6.5 V; condition: VCCA and VCCB |
| Absolute Maximum Input Voltage | -0.5 to 6.5 V; condition: A-port I/O, B-port I/O, and control inputs |
| Absolute Maximum High-Impedance or Power-Off Output Voltage | -0.5 to 6.5 V; condition: A port or B port output |
| Absolute Maximum Active Output Voltage | -0.5 to VCCA + 0.5 V; -0.5 to VCCB + 0.5 V; condition: A-port and B-port output in high or low state respectively |
| Input Clamp Current | -50 mA; condition: VI < 0 V |
| Output Clamp Current | -50 mA; condition: VO < 0 V |
| Continuous Output Current | ±50 mA; condition: any output |
| Continuous Supply or Ground Current | ±100 mA; condition: through each VCCA, VCCB, and GND |
| Junction Temperature Range | -40 to 150 °C; condition: absolute maximum rating |
| Storage Temperature Range | -65 to 150 °C; condition: absolute maximum rating |
| Operating Free-Air Temperature | -40 to 85 °C; condition: recommended operating conditions |
| Data Input VIH | 0.65 x VCCI min; 1.7 V min; 2.0 V min; 0.7 x VCCI min; condition: VCCI ranges 1.65-1.95 V, 2.3-2.7 V, 3.0-3.6 V, 4.5-5.5 V respectively |
| Data Input VIL | 0.35 x VCCI max; 0.7 V max; 0.8 V max; 0.3 x VCCI max; condition: VCCI ranges 1.65-1.95 V, 2.3-2.7 V, 3.0-3.6 V, 4.5-5.5 V respectively |
| Control Input VIH | 0.65 x VCCA min; 1.7 V min; 2.0 V min; 0.7 x VCCA min; condition: VCCA ranges 1.65-1.95 V, 2.3-2.7 V, 3.0-3.6 V, 4.5-5.5 V respectively |
| Control Input VIL | 0.35 x VCCA max; 0.7 V max; 0.8 V max; 0.3 x VCCA max; condition: VCCA ranges 1.65-1.95 V, 2.3-2.7 V, 3.0-3.6 V, 4.5-5.5 V respectively |
| Control Input Voltage Range | 0 to 5.5 V; condition: VI for control inputs |
| I/O Voltage Range Active State | 0 to VCCO V; condition: input/output voltage in active state |
| I/O Voltage Range Tri-State | 0 to 5.5 V; condition: input/output voltage in tri-state |
| High-Level Output Current | -4 mA, -8 mA, -24 mA, -32 mA; condition: VCCO ranges 1.65-1.95 V, 2.3-2.7 V, 3.0-3.6 V, 4.5-5.5 V respectively |
| Low-Level Output Current | 4 mA, 8 mA, 24 mA, 32 mA; condition: VCCO ranges 1.65-1.95 V, 2.3-2.7 V, 3.0-3.6 V, 4.5-5.5 V respectively |
| Input Transition Rise/Fall Rate | 20 ns/V, 20 ns/V, 10 ns/V, 5 ns/V; condition: data inputs, VCCI ranges 1.65-1.95 V, 2.3-2.7 V, 3.0-3.6 V, 4.5-5.5 V respectively |
| VOH | VCCO - 0.1 V min; condition: IOH=-100 µA, VI=VIH, VCCA=VCCB=1.65 V to 4.5 V |
| VOH Drive Conditions | 1.2 V min; 1.9 V min; 2.4 V min; 3.8 V min; condition: IOH=-4 mA at 1.65 V, -8 mA at 2.3 V, -24 mA at 3 V, -32 mA at 4.5 V, VI=VIH |
| VOL | 0.1 V max; condition: IOL=100 µA, VI=VIL, VCCA=VCCB=1.65 V to 4.5 V |
| VOL Drive Conditions | 0.45 V max; 0.3 V max; 0.55 V max; 0.55 V max; condition: IOL=4 mA at 1.65 V, 8 mA at 2.3 V, 24 mA at 3 V, 32 mA at 4.5 V, VI=VIL |
| Control Input Leakage Current | ±0.5 µA typ, ±2 µA max; condition: VI=VCCA or GND, VCCA=VCCB=1.65 V to 5.5 V |
| Junction-to-Ambient Thermal Resistance | 92.9, 60, 82.5, 64.6 °C/W; condition: DL SSOP-48, DGG TSSOP-48, DGV TVSOP-48, GQL/ZQL BGA-56 respectively |
| Datasheet Status | request_only |
Product Overview
The SN74LVCH16T245 is a Texas Instruments 16-bit noninverting bus transceiver for dual-supply A/B bus translation. It provides configurable level shifting with tri-state outputs, supporting bidirectional translation between 1.8 V, 2.5 V, 3.3 V, and 5 V low-voltage nodes. Both VCCA and VCCB operate from 1.65 to 5.5 V, while the 1DIR, 2DIR, 1OE, and 2OE control inputs are referenced to VCCA.
For mixed-voltage-mode data communications, the device includes overvoltage-tolerant inputs and outputs. If either VCC input is at GND, all outputs are placed in the high-impedance state. Ioff circuitry supports partial-power-down operation by disabling outputs to prevent damaging current backflow when powered down.
Package options cover SSOP-48, TSSOP-48, TVSOP-48, and BGA-56 footprints. Thermal resistance values are specified as 92.9, 60, 82.5, and 64.6 °C/W for DL SSOP-48, DGG TSSOP-48, DGV TVSOP-48, and GQL/ZQL BGA-56 packages respectively.
Key Features
- 16-bit noninverting bus transceiver with tri-state outputs
- Dual-supply level shifting between A and B buses
- VCCA and VCCB each operate from 1.65 to 5.5 V
- Supports 1.8 V, 2.5 V, 3.3 V, and 5 V translation
- Control inputs referenced to VCCA supply rail
- Outputs high-impedance if either VCC input is grounded
- Overvoltage-tolerant inputs and outputs for mixed-voltage communications
- Active bus-hold circuitry on data inputs
- Ioff support for partial-power-down operation
- Latch-up performance greater than 100 mA per JESD78 Class II
- HBM, CDM, and MM ESD ratings specified
Typical Applications
- Mixed-voltage-mode data communications
- Bidirectional low-voltage bus translation
- 1.8 V to 5 V logic interfaces
- Tri-state shared bus interfaces
- Partial-power-down signal isolation
- Overvoltage-tolerant I/O translation
- 16-bit parallel bus transceiver designs
Procurement Notes
When requesting a quote for SN74LVCH16T245, 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 SN74LVCH16T245?
The SN74LVCH16T245 is a 16-bit dual-supply noninverting bus transceiver from Texas Instruments. It provides configurable level shifting for A/B bus translation and includes tri-state outputs.
What supply voltage ranges does this transceiver support?
Both the A-port supply VCCA and B-port supply VCCB operate from 1.65 to 5.5 V. The device supports bidirectional translation between 1.8 V, 2.5 V, 3.3 V, and 5 V nodes.
How does the device behave when a supply is grounded?
If either VCCA or VCCB is at GND, all outputs are placed in the high-impedance state. The Ioff function also supports partial-power-down operation by disabling outputs to prevent damaging current backflow.
Which package options are specified for SN74LVCH16T245?
Specified package options include SSOP-48 at 15.88 mm x 7.49 mm, TSSOP-48 at 12.50 mm x 6.10 mm, TVSOP-48 at 9.70 mm x 4.40 mm, and BGA-56 at 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.