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Texas Instruments SN74AVC16T245GKER
- Part No.:
- SN74AVC16T245GKER
- Manufacturer:
- Texas Instruments
- Package:
- 96-LFBGA
- Datasheet:
-
SN74AVC16T245GKER.pdf
- Description:
- BUS TRANSCEIVER, AVC SERIES, 2-F
- Quantity:
- Payment:
- Shipping:
Inventory:950
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Product details
Overview
SN74AVC16T245GKER from Texas Instruments is a 16-bit dual-supply bus transceiver enabling bidirectional voltage-level translation between 1.2V–3.6V domains. It features independent A-port (VCCA-referenced) and B-port (VCCB-referenced) rails, tri-state outputs controlled by 1OE/2OE, and direction control via 1DIR/2DIR. Used in mixed-voltage system interconnects such as 1.8V processor ↔ 3.3V peripheral interfaces.
For engineers reviewing the SN74AVC16T245GKER datasheet, SN74AVC16T245GKER pinout, SN74AVC16T245GKER application, or SN74AVC16T245GKER equivalent, key selection criteria include VCCA/VCCB operating range (1.2V–3.6V), Ioff partial-power-down support, VCC isolation behavior, 4.6V I/O tolerance, and maximum data rates up to 380Mbps (1.8V→3.3V).
Technical Context
The SN74AVC16T245GKER implements a fully configurable dual-rail architecture where A-port I/Os track VCCA (1.2V–3.6V) and B-port I/Os track VCCB (1.2V–3.6V), enabling translation across all common low-voltage nodes. Control inputs (1DIR, 2DIR, 1OE, 2OE) are referenced solely to VCCA.
VCC isolation ensures both ports enter high-impedance when either VCCA or VCCB = GND. Ioff circuitry disables outputs during partial power-down, preventing damaging backflow current. Inputs and outputs tolerate up to 4.6V regardless of supply rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCCA / VCCB Range | 1.2 V to 3.6 V - supports universal bidirectional translation among 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V logic domains |
| Max Data Rate | 380 Mbps - achievable only for 1.8V→3.3V level-shifting; lower rates apply for other combinations (e.g., 100 Mbps for 1.2V translation) |
| I/O Voltage Tolerance | 4.6 V - allows safe interfacing with higher-voltage signals without external protection |
| Ioff Current | ±5 µA max - enables robust partial-power-down operation without latch-up or backflow damage |
| ESD Rating (HBM) | ±8000 V - exceeds JEDEC JESD22-A114A, suitable for handling in standard manufacturing environments |
| Propagation Delay (tPLH/tPHL) | 2.7 ns min (A→B, VCCA=3.3V/VCCB=3.3V) - enables high-speed synchronous bus bridging with tight timing margins |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded and communications equipment |
Pinout & Package
GKER denotes the 48-pin TVSOP (Thin Very Small Outline Package) with nominal body size 9.70 mm × 4.40 mm and 0.4 mm lead pitch. Pin 1 is marked by a beveled corner; pins are numbered counter-clockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input | Referenced to VCCA; high enables A→B data flow, low enables B→A flow per channel pair |
| 1OE, 2OE | Output enable input | Referenced to VCCA; low enables outputs, high places both A and B ports in high-impedance state |
| 1A1–1A8, 2A1–2A8 | A-port I/O | Bi-directional data lines referenced to VCCA; tolerate up to 4.6V |
| 1B1–1B8, 2B1–2B8 | B-port I/O | Bi-directional data lines referenced to VCCB; tolerate up to 4.6V |
| VCCA | A-port supply | Power rail for A-side logic and control inputs; must be 1.2V–3.6V |
| VCCB | B-port supply | Power rail for B-side logic; must be 1.2V–3.6V and may differ from VCCA |
| GND | Ground | Common reference for both ports; eight dedicated GND pins ensure low-noise return paths |
Key Features
| Feature | Design Value |
|---|---|
| Dual-rail voltage translation | Independent 1.2V–3.6V supplies on A and B ports enable interoperability across five standard logic families without external level-shifters |
| VCC isolation | Automatic high-impedance state on both ports if either VCCA or VCCB drops to GND - prevents bus contention during power sequencing |
| Ioff partial-power-down | Outputs disable cleanly when VCCA or VCCB = 0 V, eliminating backflow current and protecting powered-down subsystems |
| 4.6V-tolerant I/Os | Allows connection to legacy 5V-tolerant systems or overvoltage-safe hot-swap interfaces without clamping diodes |
| Configurable tri-state control | Separate OE inputs per 8-bit channel allow selective isolation of data lanes during multi-drop bus arbitration |
Applications
| Processor-to-Peripheral Interconnect | Multi-Voltage Memory Interface |
|---|---|
Use Scenario: Connecting a 1.8V ARM-based SoC to a 3.3V UART or SPI peripheral in portable electronics. IC Role / Device Role / Timing Role: Bidirectional level translator managing data flow direction and output enable per channel under processor software control. Use Value: Eliminates need for discrete MOSFET translators or dual-supply buffers; supports 380Mbps throughput at 1.8V→3.3V, matching high-speed serial interface requirements. | Use Scenario: Bridging a 1.5V DDR2 memory controller to 2.5V or 3.3V non-volatile storage (e.g., NOR flash) in industrial gateways. IC Role / Device Role / Timing Role: Voltage-domain isolator with VCC isolation ensuring memory bus remains floating during controller power-down sequences. Use Value: Prevents false writes or read corruption during partial power states; Ioff limits leakage to ±5µA, preserving system standby current budget. |
| Hot-Swappable Module Interface | Legacy System Voltage Adapter |
Use Scenario: Enabling hot-plug insertion of 3.3V mezzanine cards into a 1.2V FPGA carrier board in telecom baseband units. IC Role / Device Role / Timing Role: Fault-tolerant bus isolator that enters high-Z immediately upon loss of either supply, avoiding bus contention during insertion/removal. Use Value: 4.6V I/O tolerance accommodates transient overshoot during connector mating; ESD rating of ±8kV HBM meets IEC 61000-4-2 Level 4 immunity requirements. | Use Scenario: Upgrading legacy 2.5V sensor subsystems to modern 1.2V microcontrollers in automotive body control modules. IC Role / Device Role / Timing Role: Asymmetric translator supporting slow 1.2V→2.5V reads and fast 2.5V→1.2V writes with guaranteed VOL ≤ 0.15V at 1.2V. Use Value: Meets 100Mbps minimum data rate for CAN FD auxiliary diagnostics links while maintaining <2.7ns propagation delay for time-critical feedback loops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVCH16T245GKER | Includes hold-time enhancement and improved noise immunity; otherwise identical pinout, voltage range, and timing | Preferred for noisy industrial environments or high-EMI applications where signal integrity is critical | Select when layout lacks filtering or operates near switching power supplies |
| TXB0108PWR | 8-bit, auto-direction sensing (no DIR pin), lower drive strength (±8mA vs ±12mA), smaller 20-pin TSSOP package | Suitable for point-to-point, low-pin-count interfaces where direction is predictable and space-constrained | Choose for compact consumer designs with unidirectional or simple bidirectional traffic; not drop-in for 16-bit or DIR-controlled systems |
Compared with SN74AVCH16T245GKER, the SN74AVC16T245GKER offers identical functionality at lower cost but reduced noise margin; versus TXB0108PWR, it provides double data width, explicit direction control, and higher drive capability-critical for multi-drop buses and timing-critical applications.
Availability
SN74AVC16T245GKER is available at Aetrix Electronics and suitable for industrial automation controllers, telecom infrastructure backplanes, and automotive infotainment head units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74AVC16T245GKER includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader delivering analog and embedded processing solutions for industrial, automotive, personal electronics, and communications markets.
The SN74AVC16T245GKER belongs to TI's AVC (Advanced Very-low-voltage CMOS) logic family, engineered specifically for ultra-low-voltage bidirectional translation in power-sensitive, multi-rail digital systems.
FAQ
What voltage ranges can SN74AVC16T245GKER translate between?
The SN74AVC16T245GKER supports bidirectional level translation between any combination of 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V logic domains. VCCA and VCCB each operate independently from 1.2V to 3.6V, enabling flexible system integration without external voltage scaling components. The SN74AVC16T245GKER maintains full functionality across this entire range, including guaranteed timing and drive strength.
Does SN74AVC16T245GKER support partial power-down operation?
Yes, the SN74AVC16T245GKER includes Ioff circuitry that disables outputs when either VCCA or VCCB is at 0 V, preventing damaging current backflow. This feature is fully specified per JEDEC standards and allows safe operation in systems where one side powers down while the other remains active. The SN74AVC16T245GKER guarantees Ioff ≤ ±5 µA across –40°C to +85°C.
How does VCC isolation work on SN74AVC16T245GKER?
VCC isolation ensures that if either VCCA or VCCB falls to GND, both A and B ports automatically enter a high-impedance state-regardless of DIR or OE logic levels. This prevents bus contention during power-up/down sequencing or fault conditions. The SN74AVC16T245GKER implements this behavior internally with no external components required, making it ideal for robust system-level power management.
What is the maximum data rate supported by SN74AVC16T245GKER?
The SN74AVC16T245GKER achieves up to 380 Mbps when translating from 1.8V to 3.3V. Other combinations yield lower maximum rates: 200 Mbps for sub-1.8V to 3.3V or 2.5V/1.8V translation, 150 Mbps for 1.5V translation, and 100 Mbps for 1.2V translation. These values reflect guaranteed AC performance under recommended operating conditions, not theoretical limits.
Is SN74AVC16T245GKER pin-compatible with other 48-pin TVSOP level translators?
The SN74AVC16T245GKER has a fixed pinout defined in TI's datasheet (SCES551F), including dedicated GND, VCCA, VCCB, DIR, OE, and I/O assignments. While functionally similar devices like SN74AVCH16T245GKER share identical pinout and footprint, non-TI or non-AVC-family parts (e.g., TXB0108PWR) differ in pin count, signal assignment, and control logic-so direct substitution requires verification against schematic and layout. The SN74AVC16T245GKER is not a generic drop-in replacement outside its documented variant family.
SN74AVC16T245GKER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AVC
- Package/Case:
- 96-LFBGA
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Translation Transceiver
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 96-LFBGA (13.5x5.5)
SN74AVC16T245GKER FAQ
1.How can I place an order for SN74AVC16T245GKER through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AVC16T245GKER on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SN74AVC16T245GKER reliable?
The price and inventory of SN74AVC16T245GKER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AVC16T245GKER is usually 5 days.
3.What payment methods are accepted for SN74AVC16T245GKER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AVC16T245GKER transactions.
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4.How is shipping managed for SN74AVC16T245GKER?
SN74AVC16T245GKER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AVC16T245GKER order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SN74AVC16T245GKER?
For technical support, including SN74AVC16T245GKER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AVC16T245GKER requirements.
6.How does Aetrix verify that SN74AVC16T245GKER is sourced from the original manufacturer or authorized distributors?
All SN74AVC16T245GKER products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SN74AVC16T245GKER meets industry standards.
7.What is the process for return or replacement of SN74AVC16T245GKER?
All SN74AVC16T245GKER units undergo pre-shipment inspection (PSI). If there is an issue with SN74AVC16T245GKER, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SN74AVC16T245GKER part is unused and in its original packaging.
Return procedure for SN74AVC16T245GKER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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