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NXP Semiconductors 74LVTH16245BDL,118
- Part No.:
- 74LVTH16245BDL,118
- Manufacturer:
- NXP Semiconductors
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74LVTH16245BDL,118.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,198
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Product details
Overview
74LVTH16245BDL,118 from Nexperia is a 3.3 V, 16-bit bidirectional bus transceiver with dual 3-state control and bus-hold inputs. It operates across 2.7 V to 3.6 V supply, tolerates 5.5 V inputs, delivers ±64 mA output drive, and supports -40 °C to +85 °C ambient operation. Used in high-speed data bus isolation between 3.3 V logic domains and legacy 5 V systems.
For engineers reviewing the 74LVTH16245BDL,118 datasheet, 74LVTH16245BDL,118 pinout, 74LVTH16245BDL,118 application, or 74LVTH16245BDL,118 equivalent, key selection criteria include dual-directional 8-bit partitioning, overvoltage-tolerant I/O, bus-hold functionality eliminating external pull-ups, and TSSOP48 packaging for dense PCB layouts.
Technical Context
This BiCMOS transceiver implements two independent 8-bit bidirectional data paths, each controlled by dedicated DIR (direction) and OE (output enable, active LOW) signals. Its bus-hold circuitry actively maintains last-valid logic state on unused inputs without external resistors.
It features IOFF protection enabling partial power-down mode when VCC = 0 V, and supports live insertion/extraction. Input transition rates are specified up to 10 ns/V, and propagation delays are guaranteed ≤3.3 ns at 3.0–3.6 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V - Ensures compatibility with 3.3 V LVT/LVTH logic families and tolerance to rail variation. |
| Input Voltage Range | 0 V to 5.5 V - Enables direct interfacing with 5 V TTL systems without level shifters. |
| Output Drive | +64 mA sink / -32 mA source - Sustains robust signal integrity driving heavy capacitive loads or multiple inputs. |
| Propagation Delay | ≤3.3 ns (tPLH/tPHL at VCC = 3.0–3.6 V) - Supports >100 MHz bus operation in synchronous systems. |
| Bus-Hold Current | ±75 μA to ±135 μA - Actively retains input state during floating conditions, removing need for external pull-up/down resistors. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Meets industrial-grade ESD immunity requirements per JS-001/JS-002. |
| Operating Temperature | -40 °C to +85 °C - Qualified for extended industrial environments without derating. |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch, 1.2 mm max height - optimized for high-density routing and automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR (Pins 1, 24) | Direction control input | Active HIGH selects A→B data flow; LOW enables B→A - enables independent bidirectional control per 8-bit port. |
| 1OE, 2OE (Pins 48, 25) | Output enable input (active LOW) | Asserting LOW enables corresponding 8-bit output bank; HIGH forces high-impedance - allows dynamic bus sharing and hot-swap isolation. |
| 1A0–1A7 (Pins 47, 46, 44, 43, 41, 40, 38, 37) | Data I/O port A (side 1) | Bidirectional interface for first 8-bit bus segment - internally connected to bus-hold circuitry. |
| 1B0–1B7 (Pins 2, 3, 5, 6, 8, 9, 11, 12) | Data I/O port B (side 1) | Complementary 8-bit I/O path to 1A - direction determined by 1DIR; enabled by 1OE. |
| 2A0–2A7 (Pins 36, 35, 33, 32, 30, 29, 27, 26) | Data I/O port A (side 2) | Second independent 8-bit bidirectional port - electrically isolated from side 1 for dual-bus applications. |
| 2B0–2B7 (Pins 13, 14, 16, 17, 19, 20, 22, 23) | Data I/O port B (side 2) | Paired with 2A for second transceiver channel - supports full 16-bit or split 8+8 configuration. |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four dedicated VCC pins reduce IR drop and improve noise immunity across wide TSSOP body. |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins provide low-inductance return paths, critical for signal integrity at high switching speeds. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 8-bit transceivers | Enables flexible bus architecture: single 16-bit path or two isolated 8-bit channels with separate DIR/OE control. |
| Overvoltage-tolerant inputs (to 5.5 V) | Eliminates level-shifting components when interfacing with 5 V peripherals or legacy backplanes. |
| Bus-hold inputs | Maintains valid logic state on unconnected or unterminated inputs - removes 16 external pull-up resistors and associated board area. |
| IOFF partial power-down | Prevents damaging current backflow when VCC = 0 V - essential for hot-plug and power sequencing in modular systems. |
| Live insertion/extraction support | Guaranteed safe operation during board insertion into powered backplanes - reduces system downtime during maintenance. |
Applications
| PCI Express Add-in Card Interface | Industrial PLC Backplane Isolation |
|---|---|
Use Scenario: Isolating 3.3 V FPGA I/O banks from 5 V legacy PCI slot signaling while maintaining hot-swap capability. IC Role / Device Role / Timing Role: Bidirectional voltage-level agnostic bus transceiver managing data flow between FPGA and PCI controller with sub-4 ns propagation delay. Use Value: Eliminates discrete level shifters and pull-up networks, reducing BOM count by ≥18 components and PCB area by 120 mm². |
Use Scenario: Interfacing 3.3 V microcontroller-based I/O modules to 5 V-rated DIN-rail mounted PLC backplanes in factory automation. IC Role / Device Role / Timing Role: Dual-channel transceiver providing galvanically isolated data coupling with bus-hold retention during module insertion/removal. Use Value: Enables live module replacement without powering down entire control cabinet - improves mean time to repair (MTTR) by >90%. |
| Automotive Diagnostic Tool Adapter | Test Equipment Digital Pattern Generator |
Use Scenario: Bridging 3.3 V ARM Cortex-M debug interface to 5 V CAN/LIN physical layer transceivers in OBD-II diagnostic tools. IC Role / Device Role / Timing Role: Direction-controlled transceiver handling UART/SWD traffic with overvoltage-safe inputs during noisy vehicle electrical transients. Use Value: Withstands load-dump spikes up to 5.5 V without clamping diodes - increases field reliability and eliminates 2x TVS diodes per channel. |
Use Scenario: Driving high-capacitance test fixture loads (≥100 pF) from 3.3 V pattern generator ASICs in ATE systems. IC Role / Device Role / Timing Role: High-drive 3-state buffer delivering 64 mA sink current to ensure fast edge rates into heavy probe/cable capacitance. Use Value: Maintains <3.3 ns propagation skew across all 16 bits - preserves timing margin for 125 MHz digital vector patterns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16245ADGGR | Lower drive (±24 mA), no bus-hold, 1.65–3.6 V supply - lacks overvoltage tolerance. | Suitable only for pure 3.3 V systems; requires external pull-ups and level shifters for 5 V interfacing. | Select when cost sensitivity outweighs interface flexibility and board space constraints. |
| 74ALVC16245PW,118 | Same TSSOP48 package, ±24 mA drive, no bus-hold, 1.65–3.6 V - lacks 5.5 V input tolerance and IOFF. | Requires external termination and cannot safely interface to 5 V buses or support hot-swap. | Choose only for legacy designs already using ALVC family and operating exclusively within 3.3 V domain. |
Compared with SN74LVC16245ADGGR and 74ALVC16245PW,118, the 74LVTH16245BDL,118 provides superior interface robustness via 5.5 V-tolerant I/O, integrated bus-hold, and IOFF - reducing component count and improving system resilience in mixed-voltage industrial and test equipment.
Availability
74LVTH16245BDL,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, PCIe add-in card interfaces, automotive diagnostic adapters, and ATE pattern generators requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVTH16245BDL,118 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability logic, analog, and MOSFET solutions - serving industrial, automotive, and computing markets with JEDEC-compliant, AEC-Q200-qualified devices.
The 74LVTH series targets high-speed, mixed-voltage bus interfacing in industrial and communications infrastructure - designed for robustness, low power, and seamless integration across legacy and modern logic families.
FAQ
What is the maximum clock/data rate supported by the 74LVTH16245BDL,118?
The device guarantees propagation delay ≤3.3 ns at 3.0–3.6 V supply, supporting reliable operation up to 125 MHz for synchronous bus protocols. Real-world achievable rate depends on load capacitance and PCB layout; with ≤50 pF total load, clean 100 MHz DDR signaling is demonstrated in reference designs.
Can the 74LVTH16245BDL,118 be used with a 2.5 V supply?
No - the recommended minimum supply is 2.7 V per Table 5. At 2.5 V, VOH and VOL specifications fall outside guaranteed limits, and bus-hold functionality degrades. Operation below 2.7 V risks unreliable logic thresholds and increased static current leakage.
Does the bus-hold feature work when VCC = 0 V?
No - bus-hold circuitry requires VCC to be powered and within specification (2.7–3.6 V). When VCC = 0 V, IOFF protection activates but bus-hold is inactive; inputs float unless externally biased. This behavior is confirmed in Section 9's IOFF and IBHL test conditions.
Are the 1OE and 2OE pins internally pulled up or down?
Neither - 1OE and 2OE have no internal pull resistors and must be actively driven. The datasheet Function Table (Table 3) specifies "X = don't care" only when outputs are disabled; for predictable startup behavior, external pull-downs to GND are recommended to ensure outputs remain high-impedance until firmware initializes control lines.
74LVTH16245BDL,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVTH
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- 48-SSOP
74LVTH16245BDL,118 FAQ
1.How can I place an order for 74LVTH16245BDL,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVTH16245BDL,118 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 74LVTH16245BDL,118 reliable?
The price and inventory of 74LVTH16245BDL,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVTH16245BDL,118 is usually 5 days.
3.What payment methods are accepted for 74LVTH16245BDL,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVTH16245BDL,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVTH16245BDL,118?
74LVTH16245BDL,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVTH16245BDL,118 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 74LVTH16245BDL,118?
For technical support, including 74LVTH16245BDL,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVTH16245BDL,118 requirements.
6.How does Aetrix verify that 74LVTH16245BDL,118 is sourced from the original manufacturer or authorized distributors?
All 74LVTH16245BDL,118 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 74LVTH16245BDL,118 meets industry standards.
7.What is the process for return or replacement of 74LVTH16245BDL,118?
All 74LVTH16245BDL,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVTH16245BDL,118, 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 74LVTH16245BDL,118 part is unused and in its original packaging.
Return procedure for 74LVTH16245BDL,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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