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NXP Semiconductors 74LVCH32244AEC/G557
- Part No.:
- 74LVCH32244AEC/G557
- Manufacturer:
- NXP Semiconductors
- Package:
- 96-LFBGA
- Datasheet:
-
74LVCH32244AEC/G557.pdf
- Description:
- BUS DRIVER, LVC/LCX/Z SERIES
- Quantity:
- Payment:
- Shipping:
Inventory:4,590
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Product details
Overview
74LVCH32244AEC/G557 from NXP Semiconductors is a 32-bit non-inverting buffer/line driver with 3-state outputs, designed for voltage translation between 1.2 V–3.6 V logic domains and 5 V interfaces. It features eight independent output-enable inputs (1OE–8OE), bus-hold on all data inputs, and 5 V tolerant I/Os. It enables reliable signal buffering in mixed-voltage memory and peripheral buses.
For engineers reviewing the 74LVCH32244AEC/G557 datasheet, 74LVCH32244AEC/G557 pinout, 74LVCH32244AEC/G557 application, or 74LVCH32244AEC/G557 equivalent, key selection criteria include 5 V input/output tolerance, bus-hold functionality eliminating external pull-ups, 3.6 V max supply, −40 °C to +85 °C operation, and LFBGA96 package compatibility with high-density PCB layouts.
Technical Context
The 74LVCH32244AEC/G557 implements eight independent 4-bit non-inverting buffers, each controlled by a dedicated active-low output-enable (nOE). Its Si-gate CMOS architecture supports operation from 1.2 V to 3.6 V while maintaining 5 V tolerance on all I/O pins - enabling direct interfacing with legacy 5 V TTL and LVTTL systems without level shifters.
Each of the 32 data inputs includes an integrated bus-hold circuit that sustains valid logic states without external biasing; control inputs (nOE) lack bus-hold. The device uses low-inductance multiple VCC and GND balls in its LFBGA96 package to minimize ground bounce and switching noise in high-speed parallel bus applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 32-bit non-inverting buffer/line driver with independent 3-state control per 4-bit group |
| Supply Voltage Range | 1.2 V to 3.6 V - supports ultra-low-voltage operation down to 1.2 V while retaining full 5 V I/O tolerance |
| I/O Voltage Tolerance | Inputs and outputs withstand up to 5.5 V - enables safe connection to 5 V buses during power sequencing or fault conditions |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial-grade embedded and computing applications |
| Propagation Delay | 1.1 ns (min) to 4.1 ns (max) at VCC = 3.0–3.6 V - ensures timing integrity in high-speed address/data bus buffering |
| Bus-Hold Current | ±10 µA to ±75 µA (VCC-dependent) - actively holds unused inputs at valid logic levels, removing need for external pull-up/down resistors |
| ESD Protection | HBM >2000 V, MM >200 V, CDM >1000 V - robust handling during board assembly and system integration |
Pinout & Package
74LVCH32244AEC/G557 is packaged in a plastic low-profile fine-pitch ball grid array (LFBGA96) with 96 solder balls, body dimensions 13.5 mm × 5.5 mm × 1.05 mm. The package provides low-inductance power delivery via eight VCC and sixteen GND balls distributed across the array.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A[0:3]–8A[0:3] | Data input group (4 bits × 8 groups) | 32 total inputs accepting 0–5.5 V; all feature bus-hold for floating-input immunity |
| 1Y[0:3]–8Y[0:3] | Data output group (4 bits × 8 groups) | 32 total 3-state outputs; driven HIGH/LOW or placed in high-impedance OFF-state per group |
| 1OE–8OE | Active-low output enable (8 pins) | Independent control per 4-bit group; tie to VCC via pull-up for power-up high-Z safety |
| VCC | Supply voltage (8 balls) | Single 1.2–3.6 V rail powers entire device; multiple balls reduce IR drop and noise |
| GND | Ground reference (16 balls) | Distributed grounding minimizes ground bounce in simultaneous switching output (SSO) scenarios |
Key Features
| Feature | Design Value |
|---|---|
| 5 V tolerant I/O | Enables direct interface with 5 V logic without external level translators or clamping diodes |
| Integrated bus-hold | Eliminates external pull-up resistors on all 32 data inputs, reducing BOM count and layout area |
| MULTIBYTE flow-through pinout | Standardized ball arrangement simplifies PCB routing and improves signal integrity in parallel bus layouts |
| JEDEC compliance | Fully compliant with JESD8-7A (1.65–1.95 V), JESD8-5A (2.3–2.7 V), and JESD8-C/JESD36 (2.7–3.6 V) |
| Low-noise power delivery | Multiple VCC/GND balls and optimized internal bonding reduce simultaneous switching noise in high-speed applications |
Applications
| Memory Subsystem Interface | Industrial I/O Expansion |
|---|---|
Use Scenario: Buffering address/data lines between a 3.3 V microcontroller and 5 V SRAM or Flash memory. IC Role / Device Role / Timing Role: Non-inverting line driver providing voltage-level translation and drive strength enhancement. Use Value: Eliminates need for discrete level shifters; bus-hold prevents undefined states during reset or standby. |
Use Scenario: Interfacing a low-voltage FPGA I/O bank to legacy 5 V industrial sensors and actuators. IC Role / Device Role / Timing Role: Bidirectional voltage-tolerant buffer enabling interoperability across mixed-supply subsystems. Use Value: Supports hot-swap-safe 3-state control per group; 5.5 V I/O tolerance protects against overvoltage transients. |
| Embedded Peripheral Bus | Test & Measurement Equipment |
Use Scenario: Driving 32-bit parallel LCD controller signals from a 1.8 V SoC in portable instrumentation. IC Role / Device Role / Timing Role: Low-power, high-speed buffer with precise propagation delay matching across channels. Use Value: 1.1–4.1 ns tpd at 3.3 V ensures tight skew control (<1.5 ns) for synchronous display timing. |
Use Scenario: Signal conditioning and isolation in automated test equipment (ATE) digital pattern generators. IC Role / Device Role / Timing Role: 3-state-capable buffer enabling dynamic bus sharing among multiple DUT interfaces. Use Value: Independent OE pins allow selective activation of 4-bit segments, minimizing capacitive loading during vector testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buffer/line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC32244PAG | Same 32-bit non-inverting architecture, 5 V tolerant I/O, but in 100-pin TQFP package (14 × 20 mm); no bus-hold circuit | Requires external pull-up resistors on unused inputs; better suited for through-hole prototyping or thermal-relief-friendly layouts | Select when board space allows larger footprint and bus-hold is managed externally |
| 74ALVC32244BQ | Identical pinout and function, but specified only to +125 °C; higher ICC (160 µA max vs. 40 µA) and slightly slower tpd (up to 5.5 ns) | Targeted for extended-temperature automotive or aerospace use where industrial grade is insufficient | Select only if +125 °C operation is mandatory and higher leakage/current is acceptable |
Compared with SN74LVC32244PAG and 74ALVC32244BQ, the 74LVCH32244AEC/G557 uniquely combines bus-hold, LFBGA96 miniaturization, and lowest typical ICC (0.1 µA), making it optimal for space-constrained, low-power industrial and embedded designs requiring zero-external-bias I/O robustness.
Availability
74LVCH32244AEC/G557 is available at Aetrix Electronics and suitable for industrial I/O expansion, embedded memory subsystems, and test equipment requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for 74LVCH32244AEC/G557 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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The 74LVCH32244AEC/G557 belongs to NXP's LVCH family of advanced low-voltage CMOS logic devices, engineered specifically for mixed-voltage system interfacing with emphasis on noise immunity, power efficiency, and board-level reliability.
FAQ
What is the maximum supply voltage rating for the 74LVCH32244AEC/G557?
The absolute maximum supply voltage (VCC) for the 74LVCH32244AEC/G557 is +6.5 V, but the recommended operating range is strictly 1.2 V to 3.6 V. Operation above 3.6 V risks violating JEDEC compliance and may degrade long-term reliability. The 5 V I/O tolerance applies independently to input and output pins - not to VCC.
Does the 74LVCH32244AEC/G557 require external pull-up resistors on its data inputs?
No - the 74LVCH32244AEC/G557 integrates bus-hold circuitry on all 32 data inputs (1A[0:3]–8A[0:3]), which actively maintains valid logic states without external components. Control inputs (1OE–8OE) do not have bus-hold and must be actively driven or pulled to VCC/GND as needed.
Can the 74LVCH32244AEC/G557 safely interface with 5 V logic while powered from 1.8 V?
Yes - the 74LVCH32244AEC/G557 is fully 5 V tolerant on all I/O pins when VCC is as low as 1.2 V. Inputs accept 0–5.5 V, and outputs drive to valid HIGH/LOW levels relative to VCC while tolerating up to 5.5 V in 3-state mode. This enables true mixed-voltage translation without level shifters.
What is the purpose of the multiple VCC and GND balls in the LFBGA96 package of the 74LVCH32244AEC/G557?
The 74LVCH32244AEC/G557 uses eight VCC and sixteen GND balls to minimize power delivery impedance and suppress ground bounce during simultaneous switching of multiple outputs. This design reduces noise coupling into sensitive analog sections and improves timing margin in high-speed parallel bus applications.
How does the 74LVCH32244AEC/G557 ensure high-impedance state during power-up?
To guarantee high-impedance outputs at power-up, each nOE pin (1OE–8OE) must be tied to VCC through an external pull-up resistor. The minimum resistance value depends on the current-sinking capability of the driving source; NXP recommends verifying against the driver's IOH specification to avoid unintended activation during ramp-up.
74LVCH32244AEC/G557 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVC
- Package/Case:
- 96-LFBGA
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 8
- Number of Bits per Element:
- 4
- 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:
- 96-LFBGA (13.5x5.5)
74LVCH32244AEC/G557 FAQ
1.How can I place an order for 74LVCH32244AEC/G557 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCH32244AEC/G557 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 74LVCH32244AEC/G557 reliable?
The price and inventory of 74LVCH32244AEC/G557 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCH32244AEC/G557 is usually 5 days.
3.What payment methods are accepted for 74LVCH32244AEC/G557?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCH32244AEC/G557 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVCH32244AEC/G557?
74LVCH32244AEC/G557 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVCH32244AEC/G557 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 74LVCH32244AEC/G557?
For technical support, including 74LVCH32244AEC/G557 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCH32244AEC/G557 requirements.
6.How does Aetrix verify that 74LVCH32244AEC/G557 is sourced from the original manufacturer or authorized distributors?
All 74LVCH32244AEC/G557 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 74LVCH32244AEC/G557 meets industry standards.
7.What is the process for return or replacement of 74LVCH32244AEC/G557?
All 74LVCH32244AEC/G557 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCH32244AEC/G557, 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 74LVCH32244AEC/G557 part is unused and in its original packaging.
Return procedure for 74LVCH32244AEC/G557:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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