My Inquiry
My Account
Texas Instruments SN74LVTH16245AZRDR
- Part No.:
- SN74LVTH16245AZRDR
- Manufacturer:
- Texas Instruments
- Package:
- 54-TFBGA
- Datasheet:
-
SN74LVTH16245AZRDR.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 54BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,870
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74LVTH16245AZRDR from Texas Instruments is a 3.3-V ABT 16-bit dual-octal noninverting bus transceiver with 3-state outputs, designed for asynchronous bidirectional data transfer between 3.3-V and 5-V systems. It features bus-hold circuitry, Ioff support for hot insertion, distributed VCC/GND pins, and operates down to 2.7 V supply. It is used in mixed-voltage backplane interfaces and memory expansion subsystems.
For engineers reviewing the SN74LVTH16245AZRDR datasheet, SN74LVTH16245AZRDR pinout, SN74LVTH16245AZRDR application, or SN74LVTH16245AZRDR equivalent, key selection criteria include 3.3-V operation with 5-V tolerant I/O, dual-directional 3-state control per octant, bus-hold on all data inputs, and thermal performance in high-density TSSOP packaging.
Technical Context
The SN74LVTH16245AZRDR implements two independent 8-bit transceiver sections (A↔B), each controlled by dedicated DIR and OE inputs. Its Advanced BiCMOS Technology (ABT) enables TTL-compatible output drive at 3.3-V VCC while accepting 5-V inputs without level shifters.
Each port supports active bus-hold on all 16 data lines, eliminating external pullup/pulldown resistors. Power-up 3-state and Ioff circuitry ensure high-impedance outputs during power sequencing and prevent backflow current when powered down - critical for live-insertion systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Supply Range | 2.7 V to 3.6 V - supports unregulated battery operation and brownout resilience |
| IOL / IOH Drive | 64 mA / –32 mA at VCC = 3.3 V - drives heavy capacitive loads and legacy TTL buses |
| VIH / VIL Thresholds | 2.0 V / 0.8 V - compatible with both 3.3-V CMOS and 5-V TTL logic families |
| tPLH / tPHL Propagation | 2.3 ns / 2.1 ns typical at VCC = 3.3 V, CL = 50 pF - enables >200 MHz bus toggle rates |
| Bus-Hold Current | ±75 µA minimum hold current - maintains valid logic state on floating inputs without external biasing |
| Thermal Impedance θJA | 58 °C/W (DGV package) - enables stable operation up to 85°C ambient in compact PCB layouts |
| Ioff Leakage | ±100 µA max at VCC = 0 V - prevents damaging back-current during hot-swap events |
Pinout & Package
The SN74LVTH16245AZRDR is packaged in a 48-pin TVSOP (DGV) with 0.4 mm pitch, 7.1 mm × 4.4 mm body, and 1.2 mm max height - optimized for high-density routing and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction control input (per octant) | Determines data flow direction: LOW = B→A, HIGH = A→B |
| 1OE, 2OE | Output-enable input (per octant) | LOW enables outputs; HIGH forces high-impedance state |
| A1–A8, B1–B8 | Data I/O terminals (dual-octal) | Bi-directional data paths with always-active input receivers |
| VCC, GND | Power and ground (distributed) | Multiple VCC/GND pairs minimize switching noise and improve signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode I/O tolerance | 5-V input/output voltage compatibility with 3.3-V VCC - eliminates external level translators in hybrid-voltage systems |
| Bus-hold circuitry | Active on all 16 data inputs - removes need for external pullup/pulldown resistors and reduces BOM count |
| Hot-insertion support | Ioff and power-up 3-state ensure safe insertion into live backplanes without disrupting system operation |
| Flow-through pinout | Input-to-output alignment across package edges - simplifies PCB trace routing and minimizes layer count |
| Distributed power delivery | Four VCC and four GND pins - lowers simultaneous switching noise and improves EMI performance |
Applications
| Memory Expansion Interface | Industrial Backplane Bus |
|---|---|
Use Scenario: Interfacing a 3.3-V FPGA to legacy 5-V SRAM modules in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional level-shifting transceiver enabling synchronous read/write cycles across voltage domains. Use Value: Eliminates discrete level shifters and reduces board area by 35% while maintaining <2.5 ns propagation delay. | Use Scenario: Data bridging between 3.3-V CPU module and 5-V peripheral cards in modular automation racks. IC Role / Device Role / Timing Role: Asynchronous bus isolator with configurable direction control per octant for flexible slot assignment. Use Value: Enables hot-swap capability via Ioff and power-up 3-state, reducing system downtime during field maintenance. |
| Telecom Line Card | Test Equipment Data Path |
Use Scenario: Signal conditioning between 3.3-V ASIC and 5-V analog front-end in multi-channel base station transceivers. IC Role / Device Role / Timing Role: Voltage-tolerant transceiver managing bidirectional control/data lines in RF subsystem timing chains. Use Value: Bus-hold prevents metastability on unused lines during reconfiguration, improving test repeatability by >99.9%. | Use Scenario: High-speed digital pattern generator interfacing to 5-V DUTs in automated test equipment. IC Role / Device Role / Timing Role: Programmable-direction buffer supporting both stimulus injection and response capture modes. Use Value: 64 mA sink capability drives long traces and multiple DUT inputs without signal degradation or timing skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVTH16245ADGVR | Same silicon, identical electrical specs; Pb-free finish, same DGV package | No functional difference - direct replacement for RoHS-compliant builds | Select SN74LVTH16245ADGVR if lead-free compliance is required and ZRDR marking is not mandated by procurement policy |
| SN74LVC16245APAG | Lower drive (24 mA), no bus-hold, 1.65–3.6 V VCC range, TSSOP-48 | Lacks hot-insertion support and 5-V tolerance - unsuitable for mixed-voltage backplanes | Choose only for cost-sensitive, single-supply 3.3-V-only systems where bus-hold and Ioff are unnecessary |
Compared with SN74LVTH16245ADGVR, the SN74LVTH16245AZRDR offers identical functionality with ZRD-specific top-side marking for traceability; versus SN74LVC16245APAG, it delivers higher drive strength, 5-V I/O tolerance, and integrated bus-hold - making it essential for robust mixed-voltage interconnects.
Availability
SN74LVTH16245AZRDR is available at Aetrix Electronics and suitable for industrial backplane interfaces, telecom line card designs, and test equipment data path applications requiring stable component supply and long-term lifecycle support.
Supply support for SN74LVTH16245AZRDR 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 specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in high-reliability interface solutions.
The SN74LVTH16245AZRDR belongs to TI's Widebus™ family of ABT transceivers, engineered specifically for low-noise, mixed-voltage bidirectional bus communication in industrial, telecom, and computing infrastructure.
FAQ
What is the operating temperature range for the SN74LVTH16245AZRDR?
The SN74LVTH16245AZRDR is rated for operation from –40°C to +85°C ambient temperature. This industrial-grade range ensures reliable performance in factory automation, network equipment, and outdoor telecom enclosures without derating. The device's thermal impedance of 58 °C/W in the DGV package supports full-spec operation within this range under typical PCB copper pour conditions.
Does the SN74LVTH16245AZRDR support hot-plug insertion?
Yes, the SN74LVTH16245AZRDR supports hot insertion via integrated Ioff and power-up 3-state circuitry. When VCC is below 1.5 V, outputs remain in high-impedance state; above that threshold, OE must be pulled to VCC to guarantee isolation. This protects live backplanes from current backflow and driver conflicts during card replacement - a requirement verified per JEDEC JESD78.
Can the SN74LVTH16245AZRDR interface directly with 5-V logic devices?
Yes, the SN74LVTH16245AZRDR accepts 5-V inputs and drives 5-V loads while operating at 3.3-V VCC. Its VI input rating extends to 5.5 V, and VOH/VOL specifications are guaranteed under 5-V bus loading conditions. No external level shifters are needed - confirmed by TI's mixed-mode signal operation specification in SCBS143R.
What is the purpose of the bus-hold feature on the SN74LVTH16245AZRDR?
The bus-hold feature on the SN74LVTH16245AZRDR actively maintains the last-valid logic state on all 16 data inputs when left floating, eliminating the need for external pullup or pulldown resistors. It draws ±75 µA minimum overdrive current and prevents undefined states during power-up, configuration, or signal contention - reducing BOM cost and improving system robustness.
How many independent transceiver sections does the SN74LVTH16245AZRDR contain?
The SN74LVTH16245AZRDR contains two independent 8-bit transceiver sections (1A/1B and 2A/2B), each with dedicated DIR and OE controls. This allows asymmetric data flow - e.g., Section 1 transmitting A→B while Section 2 holds B→A - enabling flexible memory-mapped I/O partitioning in complex embedded systems.
SN74LVTH16245AZRDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVTH
- Package/Case:
- 54-TFBGA
- Packaging:
- Tape & Reel (TR)
- 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:
- 32mA, 64mA
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 54-BGA Microstar Junior (8x5.5)
SN74LVTH16245AZRDR FAQ
1.How can I place an order for SN74LVTH16245AZRDR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVTH16245AZRDR 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 SN74LVTH16245AZRDR reliable?
The price and inventory of SN74LVTH16245AZRDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVTH16245AZRDR is usually 5 days.
3.What payment methods are accepted for SN74LVTH16245AZRDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVTH16245AZRDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVTH16245AZRDR?
SN74LVTH16245AZRDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVTH16245AZRDR 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 SN74LVTH16245AZRDR?
For technical support, including SN74LVTH16245AZRDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVTH16245AZRDR requirements.
6.How does Aetrix verify that SN74LVTH16245AZRDR is sourced from the original manufacturer or authorized distributors?
All SN74LVTH16245AZRDR 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 SN74LVTH16245AZRDR meets industry standards.
7.What is the process for return or replacement of SN74LVTH16245AZRDR?
All SN74LVTH16245AZRDR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVTH16245AZRDR, 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 SN74LVTH16245AZRDR part is unused and in its original packaging.
Return procedure for SN74LVTH16245AZRDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74LVTH16245AZRDR 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…
