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Nexperia USA Inc. 74ALVCH16245DGG,11
- Part No.:
- 74ALVCH16245DGG,11
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ALVCH16245DGG,11.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,666
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Product details
Overview
74ALVCH16245DGG,11 from Nexperia is a 16-bit CMOS bus transceiver with dual 8-bit sections, 3-state outputs, active bus hold on all data I/Os, and independent direction (1DIR/2DIR) and output enable (1OE/2OE) controls. It operates from 1.2 V to 3.6 V, supports partial power-down via IOFF, and delivers ±24 mA drive at 3.0 V. It is used in high-density PCB interconnects between microcontrollers and peripheral buses requiring noise-immune bidirectional data flow.
For engineers reviewing the 74ALVCH16245DGG,11 datasheet, 74ALVCH16245DGG,11 pinout, 74ALVCH16245DGG,11 application, or 74ALVCH16245DGG,11 equivalent, key selection criteria include bus hold functionality, TSSOP48 package compatibility, dual-section directional control, and IOFF-enabled system-level power sequencing.
Technical Context
This device implements two independent 8-bit transceiver channels sharing no internal logic coupling-each with dedicated DIR and OE inputs. Its Schmitt-trigger inputs tolerate slow signal edges, while the IOFF circuit actively disables outputs during VCC ramp-down to prevent backflow current.
The 74ALVCH16245 variant includes integrated bus hold on all 32 data I/O pins (1A0–1A7, 1B0–1B7, 2A0–2A7, 2B0–2B7), eliminating external biasing. Unlike the 74ALVC16245, it lacks 5.5 V overvoltage-tolerant inputs but adds robust floating-input stabilization across industrial temperature range (−40 °C to +85 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 1.2 V to 3.6 V - enables direct interface with 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| Output drive | ±24 mA at VCC = 3.0 V - sufficient to drive 50 Ω transmission lines at 85 °C, supporting high-speed board-level signaling. |
| Propagation delay | 1.0 ns (min) to 3.0 ns (max) at VCC = 3.0–3.6 V - ensures sub-4 ns latency for time-critical bidirectional data handshaking. |
| Bus hold current | ±75 μA to ±175 μA (IBHH/IBHL) - maintains valid logic levels on unused data pins without pull resistors, reducing BOM count and layout area. |
| IOFF leakage | ≤10 μA OFF-state output current - prevents disruptive current paths during hot-swap or partial power-down sequences. |
| ESD rating | HBM >2000 V, CDM >1000 V - meets industrial-grade robustness requirements for assembly and field operation. |
| Operating temperature | −40 °C to +85 °C - qualified for extended industrial environments including factory automation and telecom infrastructure. |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch, designed for fine-pitch PCB routing and thermal performance in dense layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR (Pins 1, 24) | Direction control input | Active-HIGH signal selecting data flow direction per 8-bit section: HIGH = A→B, LOW = B→A. |
| 1OE, 2OE (Pins 48, 25) | Output enable input | Active-LOW control enabling/disabling respective 8-bit output banks; HIGH forces high-impedance state. |
| 1A0–1A7, 2A0–2A7 (Pins 47,46,44,43,41,40,38,37 / 36,35,33,32,30,29,27,26) | Data I/O port A | Bi-directional data terminals for first and second 8-bit sections; feature bus hold for floating-input immunity. |
| 1B0–1B7, 2B0–2B7 (Pins 2,3,5,6,8,9,11,12 / 13,14,16,17,19,20,22,23) | Data I/O port B | Bi-directional data terminals paired with port A; same bus hold and drive capability as port A pins. |
| VCC (Pins 7,18,31,42) | Power supply | Four distributed VCC pins minimize supply inductance and reduce ground bounce in high-speed switching. |
| GND (Pins 4,10,15,21,28,34,39,45) | Ground reference | Eight GND pins provide low-impedance return paths and improve signal integrity across full 16-bit bus width. |
Key Features
| Feature | Design Value |
|---|---|
| Bus hold on all 32 data I/Os | Eliminates need for 32 external pull-up/pull-down resistors, reducing component count and PCB real estate in space-constrained designs. |
| Dual independent 8-bit sections | Enables concurrent bidirectional communication on separate buses (e.g., CPU-to-peripheral and peripheral-to-memory) without cross-talk or timing interference. |
| IOFF partial power-down protection | Prevents damaging back-current when VCC is powered down while other system rails remain active-critical for hot-plug and multi-rail systems. |
| Schmitt-trigger inputs | Accepts slow-rising/falling signals (e.g., from mechanical switches or long traces) without oscillation or metastability. |
| MULTIBYTE™ flow-through pinout | Minimizes trace length and layer transitions by aligning complementary A/B pins adjacently-reducing skew and crosstalk in high-speed routing. |
Applications
| Industrial PLC Backplane Interconnect | Embedded Microcontroller Bus Expansion |
|---|---|
Use Scenario: Bidirectional data transfer between ARM Cortex-M7 MCU and isolated I/O modules across a 16-bit parallel backplane. IC Role / Device Role / Timing Role: Level-shifting transceiver managing direction and tristate control under software-configured DMA bursts. Use Value: Bus hold prevents floating states during module insertion/removal; IOFF protects against backfeed during hot-swap events. |
Use Scenario: Extending GPIO count of an SoC by connecting external SRAM and FPGA peripherals via shared address/data bus. IC Role / Device Role / Timing Role: Synchronized 16-bit bidirectional buffer with independent OE/DIR per byte lane for interleaved memory access. Use Value: Sub-4 ns propagation delay ensures setup/hold timing compliance at 25 MHz bus clock; MULTIBYTE™ pinout simplifies controlled-impedance routing. |
| Test Equipment Digital Pattern Generator | Automated Test Fixture Data Mux |
Use Scenario: Driving programmable stimulus patterns onto DUT pins with configurable direction and high-drive strength. IC Role / Device Role / Timing Role: Precision-controlled transceiver translating pattern generator outputs into 50 Ω-terminated signals. Use Value: ±24 mA drive sustains signal integrity into 50 Ω loads at 85 °C; Schmitt triggers clean up noisy edge transitions from FPGA logic. |
Use Scenario: Multiplexing multiple sensor ADC outputs onto a single microcontroller SPI data line using parallel-to-serial conversion. IC Role / Device Role / Timing Role: Time-multiplexed bidirectional data path controller with per-section enable/disable for channel isolation. Use Value: Dual OE inputs allow independent gating of each 8-bit segment, preventing bus contention during channel switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit bidirectional transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74ALVC16245DGG,11 | No bus hold; 5.5 V overvoltage-tolerant inputs; identical pinout and timing. | Suitable where external pull resistors are acceptable and interfacing with 5 V legacy logic is required. | Select when overvoltage tolerance outweighs bus hold convenience. |
| SN74LVC16245ADGGR | Texas Instruments part; same 1.65–3.6 V range, ±24 mA drive, but no bus hold or IOFF; different pinout (DGGR = TSSOP48, but signal mapping differs). | Requires PCB redesign due to non-compatible pin assignment; lacks IOFF for partial power-down safety. | Choose only if TI qualification, sourcing, or ecosystem alignment is mandatory. |
Compared with 74ALVC16245DGG,11 and SN74LVC16245ADGGR, the 74ALVCH16245DGG,11 uniquely combines bus hold, IOFF, and Schmitt-trigger inputs in a pin-compatible footprint-making it optimal for industrial systems demanding reliability, reduced external components, and safe multi-rail sequencing.
Availability
74ALVCH16245DGG,11 is available at Aetrix Electronics and suitable for industrial PLC backplanes, embedded microcontroller bus expansion, test equipment digital pattern generation, and automated test fixture data multiplexing requiring stable component supply across extended temperature and multi-voltage operation.
Supply support for 74ALVCH16245DGG,11 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 delivering high-performance, reliable logic, discrete, and MOSFET solutions optimized for efficiency, miniaturization, and robustness in industrial and consumer applications.
The 74ALVCH series targets high-density, low-power bidirectional bus interfacing-designed specifically for noise-sensitive, multi-voltage industrial systems requiring bus stability, power sequencing safety, and minimal external components.
FAQ
Does the 74ALVCH16245DGG,11 support 1.8 V operation?
Yes. The device is fully specified from 1.2 V to 3.6 V, including 1.8 V nominal supply. At VCC = 1.8 V, VIH is 1.2 V min and VIL is 0.6 V max, ensuring reliable interfacing with 1.8 V microcontrollers and FPGAs without level translation.
How does bus hold function impact PCB design?
Bus hold maintains valid logic states on all 32 data I/Os when unconnected or floating, removing the need for 32 discrete pull-up or pull-down resistors. This reduces BOM cost, saves PCB area, eliminates resistor placement errors, and improves signal integrity by avoiding stubs from resistor traces.
What is the maximum data rate supported by this transceiver?
While not a clocked device, its 3.0 ns max propagation delay at 3.3 V enables reliable operation in asynchronous 25 MHz bus systems (40 ns cycle time). For synchronous interfaces, it supports data valid windows consistent with typical microcontroller parallel bus timing budgets up to 25 MHz.
Can 1DIR and 2DIR be tied together for unified direction control?
Yes. Pins 1DIR and 2DIR may be externally connected to a single control line, allowing the device to operate as a unified 16-bit transceiver instead of two independent 8-bit units. This configuration preserves full 16-bit bandwidth while simplifying control logic and reducing GPIO usage.
74ALVCH16245DGG,11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ALVCH
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74ALVCH16245DGG,11 FAQ
1.How can I place an order for 74ALVCH16245DGG,11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVCH16245DGG,11 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 74ALVCH16245DGG,11 reliable?
The price and inventory of 74ALVCH16245DGG,11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVCH16245DGG,11 is usually 5 days.
3.What payment methods are accepted for 74ALVCH16245DGG,11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVCH16245DGG,11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVCH16245DGG,11?
74ALVCH16245DGG,11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVCH16245DGG,11 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 74ALVCH16245DGG,11?
For technical support, including 74ALVCH16245DGG,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVCH16245DGG,11 requirements.
6.How does Aetrix verify that 74ALVCH16245DGG,11 is sourced from the original manufacturer or authorized distributors?
All 74ALVCH16245DGG,11 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 74ALVCH16245DGG,11 meets industry standards.
7.What is the process for return or replacement of 74ALVCH16245DGG,11?
All 74ALVCH16245DGG,11 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVCH16245DGG,11, 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 74ALVCH16245DGG,11 part is unused and in its original packaging.
Return procedure for 74ALVCH16245DGG,11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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