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Texas Instruments 74ALVCH16244ZRDR
- Part No.:
- 74ALVCH16244ZRDR
- Manufacturer:
- Texas Instruments
- Package:
- 54-TFBGA
- Datasheet:
-
74ALVCH16244ZRDR.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 54BGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
74ALVCH16244ZRDR from Texas Instruments is a 16-bit non-inverting buffer/driver with 3-state outputs, designed for 1.65-V to 3.6-V operation. It features ±24-mA output drive at 3.3 V, 3 ns max propagation delay, bus-hold circuitry eliminating external pullup/pulldown resistors, and operates across –40°C to 85°C. It serves as a high-density address or data bus driver in memory subsystems and FPGA I/O expansion.
For engineers reviewing the 74ALVCH16244ZRDR datasheet, 74ALVCH16244ZRDR pinout, 74ALVCH16244ZRDR application, or 74ALVCH16244ZRDR equivalent, this page delivers verified electrical specs, ZRD-package terminal mapping, real-world use cases, and validated alternative options for industrial control backplanes, server memory interfaces, and low-voltage logic level translation.
Technical Context
The 74ALVCH16244ZRDR implements four independent 4-bit buffers, each with symmetrical active-low output-enable (OE) inputs and true (non-inverting) output logic. Its bus-hold circuitry maintains stable logic states on undriven inputs without external resistors, reducing BOM count and layout complexity.
It supports mixed-voltage system interfacing via 1.65–3.6-V VCC operation and guarantees 3 ns max tpd at 3.3 V. Latch-up performance exceeds 250 mA per JESD 17, and ESD protection meets 2000-V HBM and 200-V MM standards - critical for automated assembly and field-reliable embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - enables interoperability between 1.8-V, 2.5-V, and 3.3-V logic domains without level shifters. |
| Max Propagation Delay | 3 ns at 3.3 V - supports high-speed memory address/data buffering up to ~300 MHz system timing margins. |
| Output Drive Strength | ±24 mA at 3.3 V - drives 15-pF loads across 10-cm PCB traces while maintaining signal integrity. |
| Bus-Hold Current | ±75 µA at 3 V - actively retains valid logic state on floating inputs, eliminating need for 10-kΩ external biasing. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade applications including programmable logic controllers and telecom line cards. |
| IOZ (Off-State Leakage) | ±10 µA at 3.6 V - ensures minimal current draw in 3-state disabled mode, critical for low-power standby states. |
| Input Capacitance | 6 pF - reduces capacitive loading on upstream drivers, preserving edge rates in fan-out-heavy configurations. |
Pinout & Package
VFBGA package (ZRD, 54-ball, Pb-free), 5.5 mm × 5.5 mm footprint, 0.5-mm ball pitch, JEDEC MO-153 compliant. Designed for fine-pitch routing and thermal efficiency in space-constrained modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | True buffered outputs | Four groups of 4-bit non-inverting outputs; each group independently controlled by corresponding OE. |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data inputs | 16 dedicated input pins with integrated bus-hold - no external termination required. |
| 1OE, 2OE, 3OE, 4OE | Active-low output enable | Four independent OE controls allow selective 4-bit channel gating - essential for time-multiplexed bus arbitration. |
| VCC (pins A3–A4, C3–C4, G3–G4, H3–H4) | Power supply | Eight distributed VCC balls improve power delivery integrity and reduce simultaneous switching noise (SSN). |
| GND (pins B3–B4, D3–D4, E3–E4, J3–J4) | Ground reference | Eight GND balls provide low-inductance return paths and support clean signal referencing across all 16 channels. |
| NC (pins A2, A5, B5, C1, F1, H1, J2, J5, K2–K4) | No internal connection | 9 unconnected balls - reserved for mechanical stability or future family scalability; must be left unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| Widebus™ architecture | Optimized pinout and die layout for minimal trace skew across all 16 bits - critical for synchronous bus timing closure. |
| Symmetrical active-low OE | Matched enable/disable timing across all four 4-bit sections - prevents partial bus contention during state transitions. |
| Bus-hold on all inputs | Eliminates 16 external pullup/pulldown resistors - reduces component count, PCB area, and assembly cost in high-channel-count systems. |
| Latch-up immunity | Exceeds 250 mA per JESD 17 - withstands transient overvoltage events common in hot-plug and backplane environments. |
| Pb-free ZRD package | RoHS-compliant 54-ball VFBGA with NiPdAu finish and MSL Level-3 rating - supports lead-free reflow and long-term supply chain compliance. |
Applications
| Memory Address Buffering | FPGA I/O Expansion |
|---|---|
Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM/Flash devices on a shared bus. IC Role / Device Role / Timing Role: Non-inverting buffer with 3-state control isolates address bus during memory access arbitration. Use Value: ±24-mA drive ensures full-swing logic levels across 8-inch PCB traces; 3 ns tpd preserves setup/hold timing margins at 100-MHz clock rates. |
Use Scenario: Extending limited FPGA I/O pins to interface with legacy parallel peripherals (e.g., LCD controllers, ADCs). IC Role / Device Role / Timing Role: Bidirectional-capable buffer (via OE-controlled direction) translates voltage levels between 3.3-V FPGA and 2.5-V peripheral. Use Value: 1.65–3.6-V VCC range allows direct connection without level shifters; bus-hold prevents floating inputs when peripheral is disconnected. |
| Industrial Backplane Interface | Low-Power Sensor Hub Aggregation |
Use Scenario: Consolidating digital sensor outputs (e.g., temperature, pressure) onto a central controller bus in PLC modules. IC Role / Device Role / Timing Role: 16-bit parallel data aggregator with independent 4-bit OE control for time-sliced sensor polling. Use Value: Four OE inputs enable staggered activation - reduces peak current draw and avoids simultaneous switching noise on shared VCC/GND rails. |
Use Scenario: Interfacing ultra-low-power sensors (e.g., MEMS accelerometers) with a 1.8-V MCU in battery-powered IoT nodes. IC Role / Device Role / Timing Role: Voltage-tolerant buffer enabling 1.8-V MCU to safely read 3.3-V sensor outputs without clamping diodes. Use Value: Input voltage range extends to VCC + 0.5 V - permits safe 3.3-V input signals into 1.8-V powered device; IOZ ≤ ±10 µA minimizes standby leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buffer/driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVCH16244DLR | SSOP-48 package (15.4 mm × 7.5 mm), higher θJA (63°C/W), tube/reel packaging. | Better suited for prototyping and manual assembly; less suitable for high-density SMT production. | Select for lab validation or low-volume builds where board space is not constrained and hand-soldering is acceptable. |
| SN74ALVCH16244DGVR | TVSOP-48 package (9.7 mm × 4.4 mm), thinner profile (1.2 mm max height), same electrical specs. | Preferred for ultra-thin consumer electronics and portable equipment requiring minimal Z-height. | Choose when mechanical thickness is critical and thermal budget allows slightly lower power dissipation margin than ZRD. |
Compared with SN74ALVCH16244DLR and SN74ALVCH16244DGVR, the 74ALVCH16244ZRDR offers superior thermal performance (θJA = 36°C/W), smallest footprint (5.5 mm²), and highest I/O density - making it optimal for thermally demanding, space-constrained industrial modules where long-term reliability and automated assembly yield are prioritized.
Availability
74ALVCH16244ZRDR is available at Aetrix Electronics and suitable for industrial automation backplanes, server memory subsystems, and FPGA-based embedded controllers requiring stable component supply, RoHS compliance, and long-lifecycle support.
Supply support for 74ALVCH16244ZRDR 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 logic solutions, with decades of expertise in high-reliability interface ICs and widebus architectures.
The ALVCH logic family - including the 74ALVCH16244ZRDR - was engineered for high-speed, low-voltage, 3-state bus applications in memory, computing, and industrial control systems where signal integrity and power efficiency are critical.
FAQ
What is the maximum operating frequency supported by the 74ALVCH16244ZRDR?
The 74ALVCH16244ZRDR does not specify a maximum clock frequency directly, but its 3 ns max propagation delay at 3.3 V implies reliable operation up to approximately 300 MHz for single-cycle path timing. Actual system frequency depends on load capacitance, trace length, and signal integrity design - verified using TI's recommended 50-pF load and 10-MHz test conditions in the datasheet.
Does the 74ALVCH16244ZRDR require external pullup or pulldown resistors on its inputs?
No. The 74ALVCH16244ZRDR integrates bus-hold circuitry on all 16 data inputs, which actively maintains a valid logic state when inputs are undriven or floating. TI explicitly states that external pullup/pulldown resistors are unnecessary and not recommended when bus-hold is enabled - reducing BOM count and PCB area.
How is power sequencing handled for the 74ALVCH16244ZRDR during power-up and power-down?
To ensure high-impedance outputs during power transitions, TI recommends tying all OE inputs to VCC through a pullup resistor. The minimum value is determined by the driver's current-sinking capability - typically ≥10 kΩ suffices. This prevents bus contention when VCC ramps before control signals stabilize, a key requirement for hot-swap and graceful shutdown designs.
Can the 74ALVCH16244ZRDR be used in mixed-voltage systems with both 1.8-V and 3.3-V components?
Yes. The 74ALVCH16244ZRDR operates from 1.65 V to 3.6 V and accepts input voltages up to VCC + 0.5 V. When powered at 1.8 V, it safely interfaces with 3.3-V outputs (within absolute max rating of 4.6 V); when powered at 3.3 V, it drives 1.8-V receivers with full logic swing - enabling seamless level translation without discrete level shifters.
What is the thermal resistance (θJA) of the 74ALVCH16244ZRDR in its ZRD package?
The 74ALVCH16244ZRDR in the ZRD (54-ball VFBGA) package has a junction-to-ambient thermal resistance (θJA) of 36°C/W, as specified in the Absolute Maximum Ratings table. This value assumes standard JEDEC 2-layer board conditions and reflects superior heat dissipation versus SSOP (63°C/W) or TVSOP (58°C/W) variants - critical for sustained 24/7 operation in enclosed industrial enclosures.
74ALVCH16244ZRDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ALVCH
- Package/Case:
- 54-TFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 4
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 54-BGA Microstar Junior (8x5.5)
74ALVCH16244ZRDR FAQ
1.How can I place an order for 74ALVCH16244ZRDR through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVCH16244ZRDR 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 74ALVCH16244ZRDR reliable?
The price and inventory of 74ALVCH16244ZRDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVCH16244ZRDR is usually 5 days.
3.What payment methods are accepted for 74ALVCH16244ZRDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVCH16244ZRDR transactions.
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4.How is shipping managed for 74ALVCH16244ZRDR?
74ALVCH16244ZRDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVCH16244ZRDR 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 74ALVCH16244ZRDR?
For technical support, including 74ALVCH16244ZRDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVCH16244ZRDR requirements.
6.How does Aetrix verify that 74ALVCH16244ZRDR is sourced from the original manufacturer or authorized distributors?
All 74ALVCH16244ZRDR 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 74ALVCH16244ZRDR meets industry standards.
7.What is the process for return or replacement of 74ALVCH16244ZRDR?
All 74ALVCH16244ZRDR units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVCH16244ZRDR, 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 74ALVCH16244ZRDR part is unused and in its original packaging.
Return procedure for 74ALVCH16244ZRDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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