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NXP Semiconductors 74LVCH32244AEC,551
- Part No.:
- 74LVCH32244AEC,551
- Manufacturer:
- NXP Semiconductors
- Package:
- 96-LFBGA
- Datasheet:
-
74LVCH32244AEC,551.pdf
- Description:
- IC BUF NON-INVERT 3.6V 96LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,462
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Product details
Overview
74LVCH32244AEC,551 from NXP Semiconductors (formerly Philips) is a 32-bit non-inverting buffer/line driver with 3-state outputs, designed for mixed-voltage system interfacing. It operates from 1.2 V to 3.6 V supply, tolerates 5 V inputs/outputs up to 5.5 V, features bushold on all data inputs, and delivers 3.0 ns typical propagation delay at 3.3 V - enabling reliable signal buffering in high-density memory and bus interface applications.
For engineers reviewing the 74LVCH32244AEC,551 datasheet, 74LVCH32244AEC,551 pinout, 74LVCH32244AEC,551 application, or 74LVCH32244AEC,551 equivalent, key selection criteria include 5 V tolerance in sub-3.6 V systems, bushold elimination of external pull-ups, LFBGA96 package constraints, and 8 independent 3-state enable inputs for granular bus control.
Technical Context
The 74LVCH32244AEC,551 implements eight independent 4-bit non-inverting buffers, each controlled by a dedicated active-low output enable (nOE). Its Si-gate CMOS architecture supports bidirectional voltage translation: 3.3 V logic can drive and read 5 V-tolerant I/O without level shifters.
All 32 data inputs incorporate bushold circuitry, maintaining valid logic states without external biasing; outputs switch between driven HIGH/LOW and high-impedance OFF-states with 3.5 ns typical enable time and 3.7 ns disable time at 3.3 V/50 pF load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - enables operation in ultra-low-power and mixed-voltage domains including 1.8 V, 2.5 V, and 3.3 V systems. |
| Input/Output Voltage Tolerance | Up to 5.5 V - allows direct connection to legacy 5 V buses without external level-shifting components. |
| Propagation Delay (tPHL/tPLH) | 3.0 ns typical at VCC = 3.3 V, CL = 50 pF - supports high-speed data transfer in DDR memory interfaces and parallel bus systems. |
| Bushold Input Circuitry | Integrated on all 32 data inputs - eliminates need for external pull-up/pull-down resistors on unused or floating lines. |
| 3-State Enable/Disable Time | 3.5 ns enable / 3.7 ns disable typical at VCC = 3.3 V - ensures precise timing control for bus arbitration and shared-resource access. |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial and extended-temperature embedded applications. |
| ESD Protection | HBM > 2000 V, MM > 200 V - provides robust handling during board assembly and field operation. |
Pinout & Package
Package: LFBGA96 (SOT536-1), 13.5 mm × 5.5 mm × 1.05 mm body, 0.5 mm ball pitch, 96 solder balls.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | 1Y1 | Data output for first bit of channel 1 - part of 4-bit group controlled by 1OE. |
| A3 | 1OE | Active-low 3-state enable for outputs 1Y0–1Y3 - must be pulled HIGH via resistor during power-up to ensure safe high-Z state. |
| A5 | 1A0 | Data input for first bit of channel 1 - includes bushold circuitry to retain logic state when un-driven. |
| C3 | VCC | Main power supply pin - multiple VCC balls (C3, C4, F3, F4, L3, L4, P3, P4) reduce supply inductance and ground bounce. |
| B3 | GND | Ground reference - eight dedicated GND balls (B3, B4, D3, D4, E3, E4, G3, G4, K3, K4, M3, M4, N3, N4, R3, R4) minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| 5 V tolerant I/O | Enables seamless integration into legacy 5 V subsystems while powered from 1.2–3.6 V rails - no external level translators required. |
| MULTIBYTE flow-through pinout | Standardized ball arrangement per 4-bit group simplifies PCB routing and reduces trace length mismatch across data lanes. |
| Low-inductance power/ground layout | Distributed VCC and GND balls suppress simultaneous switching noise (SSN), critical for signal integrity in high-speed parallel interfaces. |
| Bushold on all data inputs | Prevents floating-input metastability and eliminates board space/cost for 32 external pull-up resistors in partial-bus configurations. |
| JEDEC JESD8-B/JESD36 compliance | Ensures interoperability with industry-standard low-voltage logic families and compatibility with automated test equipment. |
Applications
| Memory Subsystem Buffering | Industrial Bus Interface |
|---|---|
|
Use Scenario: Buffering address/data lines between a 3.3 V microcontroller and 5 V SRAM or Flash memory in programmable logic controllers. IC Role / Device Role / Timing Role: Non-inverting 32-bit line driver with independent 3-state control per 4-bit segment - isolates MCU from memory bus loading and enables multi-master arbitration. Use Value: 5 V I/O tolerance eliminates level shifters; bushold prevents undefined states during reset or standby modes. |
Use Scenario: Interfacing a 2.5 V FPGA I/O bank to a 5 V industrial CAN or RS-485 transceiver bus controller. IC Role / Device Role / Timing Role: Voltage-tolerant buffer providing bidirectional signal conditioning and bus contention management via eight OE inputs. Use Value: Wide 1.2–3.6 V supply range matches FPGA core voltage; 3.0 ns propagation delay preserves timing margins in real-time control loops. |
| High-Density PCB Signal Integrity | Mixed-Voltage Test Equipment |
|
Use Scenario: Driving parallel test signals across long PCB traces in automated test equipment with tight skew requirements. IC Role / Device Role / Timing Role: Low-skew (<1.0 ns max) 32-bit buffer with distributed power/ground pins - minimizes inter-channel timing variation and ground bounce. Use Value: Multiple VCC/GND balls and flow-through pinout reduce crosstalk and maintain signal fidelity at 100+ MHz toggle rates. |
Use Scenario: Level translation and bus isolation in modular instrumentation where DUTs operate at 1.8 V, 3.3 V, or 5 V simultaneously. IC Role / Device Role / Timing Role: Reconfigurable 32-bit buffer supporting hot-swap-safe 3-state control - enables dynamic re-routing of test signals without power cycling. Use Value: Independent OE pins allow per-segment enable/disable; 5.5 V absolute max input rating protects against transient overvoltage during probing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit buffer/line driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC32244APAG | TI version in TQFP-100 package; identical 1.65–3.6 V supply range but no 5 V tolerance - requires external clamping for 5 V bus interfacing. | Preferred for cost-sensitive, space-tolerant designs where 5 V tolerance is not required and leaded packaging is acceptable. | Select when footprint flexibility and RoHS-compliant leaded assembly outweigh 5 V tolerance needs. |
| 74ALVCH32244AEC,551 | NXP higher-speed variant: 2.2 ns typical tPHL/tPLH at 3.3 V, same LFBGA96 package and 5 V tolerance - shares pinout and bushold functionality. | Suitable for next-generation systems demanding tighter timing margins without changing layout or firmware. | Choose for performance upgrade path with zero PCB change - identical mechanical fit and electrical interface. |
Compared with SN74LVC32244APAG, the 74LVCH32244AEC,551 offers essential 5 V tolerance for legacy bus integration, while versus 74ALVCH32244AEC,551 it trades 0.8 ns speed for lower dynamic power and broader voltage scalability down to 1.2 V.
Availability
74LVCH32244AEC,551 is available at Aetrix Electronics and suitable for industrial automation, memory subsystem design, and mixed-voltage test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVCH32244AEC,551 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, formerly Philips Semiconductors, is a global leader in high-performance analog and logic ICs, with expertise in automotive, industrial, and communication applications.
The 74LVCH32244AEC,551 belongs to NXP's LVCH (Low-Voltage CMOS with 5 V Tolerance) logic family, engineered specifically for robust signal integrity and voltage interoperability in heterogeneous digital systems.
FAQ
What is the minimum supply voltage required for functional operation of the 74LVCH32244AEC,551?
74LVCH32244AEC,551 operates down to 1.2 V supply voltage, as specified in the Recommended Operating Conditions table. At this voltage, AC performance degrades (e.g., propagation delay increases to 11.0 ns max), but DC logic levels remain valid and bushold functionality is retained - making it suitable for ultra-low-power sleep-mode buffering.
Does the 74LVCH32244AEC,551 require external pull-up resistors on its data inputs?
No, the 74LVCH32244AEC,551 does not require external pull-up resistors on any of its 32 data inputs because all inputs feature integrated bushold circuitry. This function actively maintains the last-valid logic state when inputs are un-driven, eliminating floating nodes and associated metastability risks without added components.
Can the 74LVCH32244AEC,551 safely interface with a 5 V microcontroller while powered from a 2.5 V supply?
Yes, the 74LVCH32244AEC,551 supports 5 V-tolerant inputs and outputs while operating from 2.5 V VCC. Inputs accept up to 5.5 V, and outputs drive to valid HIGH/LOW levels compatible with 5 V TTL logic - enabling direct connection without level shifters, provided output current limits (±24 mA) are observed.
How many independent 3-state enable inputs does the 74LVCH32244AEC,551 have, and what is their active state?
The 74LVCH32244AEC,551 has eight independent 3-state output enable inputs (1OE through 8OE), each controlling a 4-bit output group. All OE inputs are active LOW: a logic LOW asserts the corresponding four outputs into driven HIGH/LOW states, while a logic HIGH places them in high-impedance OFF-state.
What is the thermal and mechanical package specification for the 74LVCH32244AEC,551?
74LVCH32244AEC,551 uses the LFBGA96 package (SOT536-1): 13.5 mm × 5.5 mm × 1.05 mm body, 0.5 mm ball pitch, 96 solder balls. It is rated for −40 °C to +85 °C operation and features low-inductance power/ground ball distribution to minimize thermal resistance and ground bounce in high-speed switching.
74LVCH32244AEC,551 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVCH
- Package/Case:
- 96-LFBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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,551 FAQ
1.How can I place an order for 74LVCH32244AEC,551 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCH32244AEC,551 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,551 reliable?
The price and inventory of 74LVCH32244AEC,551 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCH32244AEC,551 is usually 5 days.
3.What payment methods are accepted for 74LVCH32244AEC,551?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCH32244AEC,551 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVCH32244AEC,551?
74LVCH32244AEC,551 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVCH32244AEC,551 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,551?
For technical support, including 74LVCH32244AEC,551 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCH32244AEC,551 requirements.
6.How does Aetrix verify that 74LVCH32244AEC,551 is sourced from the original manufacturer or authorized distributors?
All 74LVCH32244AEC,551 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,551 meets industry standards.
7.What is the process for return or replacement of 74LVCH32244AEC,551?
All 74LVCH32244AEC,551 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCH32244AEC,551, 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,551 part is unused and in its original packaging.
Return procedure for 74LVCH32244AEC,551:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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