My Inquiry
My Account
Texas Instruments SN74ALVTHR16245DL
- Part No.:
- SN74ALVTHR16245DL
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74ALVTHR16245DL.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:110
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74ALVTHR16245DL from Texas Instruments is a 16-bit dual-octal noninverting bus transceiver with 3-state outputs, designed for 2.5-V/3.3-V operation and mixed-mode (5-V tolerant) interfacing. It supports bidirectional data flow between A and B buses under DIR control, features integrated bus-hold circuitry, 30-Ω output series resistors, and Ioff-enabled hot insertion-used in backplane interface, FPGA-to-ASIC bridging, and industrial control backplanes.
For engineers reviewing the SN74ALVTHR16245DL datasheet, SN74ALVTHR16245DL pinout, SN74ALVTHR16245DL application, or SN74ALVTHR16245DL equivalent, key selection considerations include its 48-pin SSOP (DL) package, ±12 mA drive strength at 3.3 V, 0.5–4.3 ns propagation delay, bus-hold current specifications (IBHL = 75 µA at 3 V), and compliance with JESD 78 Class II latch-up performance.
Technical Context
This device implements a flow-through architecture with distributed VCC/GND pins to minimize high-speed switching noise and supports two independent 8-bit transceiver channels. Each channel uses separate DIR and OE controls, enabling asymmetric bus directionality and selective isolation.
Its Advanced BiCMOS Technology (ABT) enables stable operation across 2.3–3.6 V VCC while tolerating 0–5.5 V input/output voltages. The power-up 3-state and Ioff circuitry ensure high-impedance outputs during power ramping and full isolation when VCC = 0, critical for live-insertion systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3 V to 3.6 V - supports both 2.5-V and 3.3-V system rails with single-supply simplicity |
| Drive Strength | ±12 mA at 3.3 V - sufficient to drive standard 50-Ω transmission lines without external termination |
| Propagation Delay | 0.5–3.9 ns (CL = 50 pF) - enables >200 MHz data rates in point-to-point or lightly loaded bus topologies |
| Bus-Hold Current | IBHL = 75 µA, IBHH = –75 µA at 3 V - eliminates need for external pullup/pulldown resistors on floating data lines |
| Output Series Resistance | 30 Ω (integrated) - reduces overshoot/undershoot and simplifies PCB layout by removing discrete series resistors |
| Latch-Up Immunity | >100 mA per JESD 78 Class II - ensures robustness against transient current faults in industrial environments |
| ESD Protection | 2000-V HBM, 200-V MM, 1000-V CDM - meets stringent handling and board-level reliability requirements |
Pinout & Package
SN74ALVTHR16245DL is housed in a 48-pin SSOP (Shrink Small Outline Package) with 0.5-mm pitch, 12.6 mm × 7.9 mm body, and 1.2 mm max height - optimized for high-density PCB layouts with low thermal resistance (θJA = 63°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (per 8-bit section) | Determines data flow direction: L = B→A, H = A→B; enables independent channel control |
| 1OE, 2OE | Output-enable input (per 8-bit section) | L = outputs active, H = outputs in high-impedance state; supports partial bus isolation |
| 1A1–1A8, 2A1–2A8 | Port A data inputs/outputs | First and second 8-bit data terminals connected to local bus or controller side |
| 1B1–1B8, 2B1–2B8 | Port B data inputs/outputs | First and second 8-bit data terminals connected to remote bus or peripheral side |
| VCC, GND | Power and ground | Distributed across package (12× VCC, 12× GND) - suppresses simultaneous switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Hot-insertion support | Ioff and power-up 3-state prevent backdrive current and bus conflicts during live card replacement |
| Mixed-mode voltage tolerance | 5-V-tolerant I/O with 2.3–3.6 V VCC enables seamless interfacing between 3.3-V logic and legacy 5-V subsystems |
| Integrated bus-hold | Eliminates external biasing components on unused or unterminated data lines, reducing BOM count and layout area |
| Flow-through pinout | A/B port signals enter and exit opposite sides of package - simplifies layer routing and minimizes trace crossovers |
| Low ground bounce | VOLP < 0.8 V at VCC = 3.3 V - maintains signal integrity during high-current output transitions |
Applications
| Backplane Interface | FPGA-to-ASIC Bridging |
|---|---|
Use Scenario: Interfacing multiple slot cards to a central backplane in modular industrial controllers. IC Role / Device Role / Timing Role: Bidirectional level-shifting transceiver isolating hot-pluggable modules while maintaining signal integrity across 16-bit parallel paths. Use Value: Ioff and power-up 3-state prevent bus contention during card insertion/removal; 30-Ω series resistors suppress reflections on long backplane traces. | Use Scenario: Connecting Xilinx Artix-7 FPGA I/O banks to ASIC-based motor control logic operating at different voltage domains. IC Role / Device Role / Timing Role: Voltage-tolerant bus buffer enabling reliable 16-bit command/status exchange between 3.3-V FPGA and 5-V ASIC peripherals. Use Value: Mixed-mode I/O allows direct connection without external level shifters; bus-hold prevents floating inputs during configuration handshaking. |
| Industrial PLC I/O Expansion | Test Equipment Data Bus |
Use Scenario: Adding isolated digital I/O modules to programmable logic controllers via ribbon-cable interconnects. IC Role / Device Role / Timing Role: Dual-octal transceiver managing parallel status reporting and control command distribution across expansion headers. Use Value: Distributed VCC/GND pins reduce ground bounce in noisy factory environments; latch-up immunity exceeds 100 mA per JESD 78 Class II. | Use Scenario: Routing high-speed test vectors between ATE controller and DUT interface boards in automated test systems. IC Role / Device Role / Timing Role: Low-skew, low-delay bus repeater ensuring timing-critical pattern delivery across multi-board test fixtures. Use Value: 0.5 ns min tPLH/tPHL guarantees sub-nanosecond edge alignment; 4.3 ns max delay supports >200 MHz pattern rates with margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVCH16245GR | No bus-hold; lower drive (±8 mA); no Ioff; 3.3-V only (no 2.5-V support) | Suitable for fixed-voltage, non-hot-swap systems with external biasing | Select when cost reduction is prioritized over hot-insertion capability and bus-hold integration |
| SN74LVC16245ADGGR | Lower drive (±24 mA), no integrated 30-Ω resistors, no bus-hold, higher ICC (5 mA typical) | Better suited for low-power, short-trace applications where external termination is acceptable | Choose when interfacing to modern 3.3-V-only systems with tight power budgets and controlled impedance routing |
Compared with SN74ALVCHR16245GR and SN74LVC16245ADGGR, the SN74ALVTHR16245DL uniquely combines Ioff-enabled hot insertion, integrated bus-hold, and 30-Ω output resistors - making it the only option among the three qualified for live-replaceable backplane modules requiring zero external components for signal integrity and floating-input management.
Availability
SN74ALVTHR16245DL is available at Aetrix Electronics and suitable for industrial PLC backplanes, FPGA-ASIC interconnects, automated test equipment, and modular instrumentation requiring stable component supply across extended temperature ranges (–40°C to 85°C).
Supply support for SN74ALVTHR16245DL 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The 'ALVTHR16245 product line was engineered specifically for high-reliability, hot-pluggable 16-bit bus interfaces in industrial control and telecom infrastructure - emphasizing mixed-voltage compatibility, latch-up immunity, and zero-component signal integrity.
FAQ
What is the maximum operating temperature range for SN74ALVTHR16245DL?
The SN74ALVTHR16245DL is rated for operation from –40°C to +85°C ambient temperature. This industrial-grade temperature range is confirmed in the "Recommended Operating Conditions" table of the SCES075D datasheet and applies specifically to the DL (SSOP) package variant. Operation outside this range may result in undefined behavior or reduced reliability.
Does SN74ALVTHR16245DL support hot insertion, and how is it implemented?
Yes, SN74ALVTHR16245DL supports hot insertion via two integrated features: Ioff circuitry disables outputs when VCC = 0, preventing damaging backflow current, and power-up 3-state forces outputs into high-impedance during power ramping (VCC ≤ 1.2 V). Both mechanisms are explicitly documented in the "description/ordering information" section and functional behavior tables of the SCES075D datasheet.
Can SN74ALVTHR16245DL interface between a 3.3-V FPGA and a 5-V ADC without external level shifters?
Yes, SN74ALVTHR16245DL can directly interface a 3.3-V FPGA to a 5-V ADC because its I/O pins tolerate up to 5.5 V regardless of VCC (2.3–3.6 V), as specified in the "Recommended Operating Conditions" table. The device operates at 3.3 V while safely accepting and driving 5-V signals - eliminating the need for discrete level translators in mixed-voltage data paths.
What is the purpose of the integrated 30-Ω series resistors on SN74ALVTHR16245DL outputs?
The integrated 30-Ω series resistors on SN74ALVTHR16245DL outputs damp signal reflections and reduce overshoot/undershoot on PCB traces, especially in unterminated or medium-length bus configurations. This feature is explicitly stated in the "Features" section of SCES075D and removes the requirement for external series termination resistors - simplifying layout and reducing component count.
How does the bus-hold circuitry in SN74ALVTHR16245DL function, and what current does it provide?
The bus-hold circuitry in SN74ALVTHR16245DL actively maintains valid logic levels on floating inputs: it sources up to 75 µA (IBHH) when holding high and sinks up to 75 µA (IBHL) when holding low, at VCC = 3 V. These values are measured per the electrical characteristics tables in SCES075D and eliminate the need for external pullup/pulldown resistors on unused or unterminated data lines.
SN74ALVTHR16245DL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ALVTHR
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 2.3V ~ 2.7V, 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
SN74ALVTHR16245DL FAQ
1.How can I place an order for SN74ALVTHR16245DL through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ALVTHR16245DL 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 SN74ALVTHR16245DL reliable?
The price and inventory of SN74ALVTHR16245DL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ALVTHR16245DL is usually 5 days.
3.What payment methods are accepted for SN74ALVTHR16245DL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ALVTHR16245DL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ALVTHR16245DL?
SN74ALVTHR16245DL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ALVTHR16245DL 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 SN74ALVTHR16245DL?
For technical support, including SN74ALVTHR16245DL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ALVTHR16245DL requirements.
6.How does Aetrix verify that SN74ALVTHR16245DL is sourced from the original manufacturer or authorized distributors?
All SN74ALVTHR16245DL 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 SN74ALVTHR16245DL meets industry standards.
7.What is the process for return or replacement of SN74ALVTHR16245DL?
All SN74ALVTHR16245DL units undergo pre-shipment inspection (PSI). If there is an issue with SN74ALVTHR16245DL, 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 SN74ALVTHR16245DL part is unused and in its original packaging.
Return procedure for SN74ALVTHR16245DL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74ALVTHR16245DL Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
