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NXP Semiconductors 74LVCH32244AEC,518
- Part No.:
- 74LVCH32244AEC,518
- Manufacturer:
- NXP Semiconductors
- Package:
- 96-LFBGA
- Datasheet:
-
74LVCH32244AEC,518.pdf
- Description:
- IC BUF NON-INVERT 3.6V 96LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,312
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Product details
Overview
74LVCH32244AEC,518 from NXP Semiconductors (formerly Philips) is a 32-bit non-inverting buffer/line driver with 3-state outputs, 5 V-tolerant I/O, 1.2 V to 3.6 V supply operation, bushold inputs, and LFBGA96 packaging. It enables bidirectional voltage-level translation in mixed 3.3 V/5 V systems such as memory bus drivers and FPGA I/O expansion interfaces.
For engineers reviewing the 74LVCH32244AEC,518 datasheet, 74LVCH32244AEC,518 pinout, 74LVCH32244AEC,518 application, or 74LVCH32244AEC,518 equivalent, key selection criteria include 5 V input/output tolerance, bushold input retention, 3.0 ns typical propagation delay at 3.3 V, 3.5 ns output enable time, and LFBGA96 thermal/mechanical compatibility with high-density PCB layouts.
Technical Context
The 74LVCH32244AEC,518 implements eight independent 4-bit non-inverting buffers, each controlled by an active-low 3-state output enable (nOE). All 32 data inputs feature bushold circuitry, eliminating external pull-up resistors for floating inputs. Inputs accept up to 5.5 V regardless of VCC, enabling direct interfacing with legacy 5 V TTL logic while operating from 1.2 V to 3.6 V supplies.
Outputs drive 5 V loads in 3-state mode and support ±24 mA sink/source capability at 3.0 V. Propagation delay (tPHL/tPLH), enable time (tPZH/tPZL), and disable time (tPHZ/tPLZ) are all specified down to 1.2 V supply, with timing performance scaling linearly across the full voltage range. The device complies with JEDEC JESD8-B/JESD36 for low-voltage CMOS interface standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.2 V to 3.6 V - supports ultra-low-power operation and mixed-voltage system integration |
| Input/Output Tolerance | Up to 5.5 V - enables direct connection to 5 V logic without level shifters |
| Propagation Delay | 3.0 ns typical at VCC = 3.3 V, CL = 50 pF - ensures tight timing margins in high-speed bus applications |
| 3-State Enable Time | 3.5 ns typical at VCC = 3.3 V, CL = 50 pF - minimizes bus turnaround latency |
| Bushold Input Current | ±75 µA sustaining current - maintains valid logic state on unconnected inputs without external bias |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial ambient environments |
| ESD Protection | HBM > 2000 V, MM > 200 V - robust handling during board assembly and field operation |
Pinout & Package
Packaged in plastic LFBGA96 (SOT536-1), body size 13.5 × 5.5 × 1.05 mm, with 96 solder balls arranged in a fine-pitch grid (0.8 mm pitch). Low-inductance multiple VCC and GND balls minimize ground bounce and noise coupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A3, A4, H3, H4, J3, J4, T3, T4 | 3-state output enable (nOE) | Active-low control per 4-bit group; ties to VCC via pull-up for power-up high-impedance safety |
| A5–A6, B5–B6, C5–C6, D5–D6, E5–E6, F5–F6, G5–G6, H5–H6, J5–J6, K5–K6, L5–L6, M5–M6, N5–N6, P5–P6, R5–R6, T5–T6 | Data inputs (nAn) | 32 total inputs with bushold; tolerate 0–5.5 V regardless of VCC |
| A1–A2, B1–B2, C1–C2, D1–D2, E1–E2, F1–F2, G1–G2, H1–H2, J1–J2, K1–K2, L1–L2, M1–M2, N1–N2, P1–P2, R1–R2, T1–T2 | Data outputs (nYn) | 32 total outputs; drive 5 V loads in 3-state; sink/source ±24 mA at 3.0 V |
| C3–C4, F3–F4, L3–L4, P3–P4, and multiple GND balls (e.g., B3–B4, D3–D4) | Power and ground | Distributed VCC/GND balls reduce impedance and improve signal integrity in high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| 5 V-tolerant I/O architecture | Enables seamless interoperation between 3.3 V core logic and legacy 5 V peripherals without external level translators |
| Bushold input circuitry | Eliminates need for 32 external pull-up resistors on unused or unterminated data lines, reducing BOM count and layout area |
| MULTIBYTE flow-through pinout | Groups inputs/outputs and enables per-byte control, simplifying PCB routing and matching trace lengths across byte lanes |
| Low-noise power distribution | Multiple low-inductance VCC and GND balls suppress simultaneous switching noise and ground bounce in 32-bit parallel buses |
| JEDEC JESD8-B/JESD36 compliance | Guarantees interoperability with industry-standard low-voltage CMOS interfaces in memory, FPGA, and ASIC subsystems |
Applications
| Memory Bus Driver | FPGA I/O Expansion |
|---|---|
Use Scenario: Driving address/data lines between a 3.3 V microcontroller and 5 V SRAM or Flash memory. IC Role / Device Role / Timing Role: Non-inverting 32-bit buffer with 3-state control, providing voltage translation and bus isolation. Use Value: Eliminates discrete level shifters; bushold prevents floating inputs during reset; 3.0 ns propagation delay meets sub-100 MHz memory timing budgets. | Use Scenario: Extending I/O count of a Spartan-6 FPGA to interface with external 5 V peripherals. IC Role / Device Role / Timing Role: Bidirectional voltage-tolerant buffer enabling FPGA core logic (1.2 V/3.3 V) to safely drive 5 V GPIOs. Use Value: 5.5 V input tolerance allows direct connection to 5 V sensors/actuators; LFBGA96 footprint matches FPGA package density requirements. |
| Industrial Backplane Interface | Automotive Infotainment Data Hub |
Use Scenario: Buffering parallel control signals across a 3U Eurocard backplane with mixed 3.3 V and 5 V slot cards. IC Role / Device Role / Timing Role: 32-bit line driver with per-group 3-state enables hot-swap isolation and modular card addressing. Use Value: −40 °C to +85 °C rating ensures reliability in uncontrolled cabinet environments; low ground bounce supports stable multi-card signaling. | Use Scenario: Interfacing a 3.3 V application processor to legacy 5 V display controllers and audio codecs in head-unit designs. IC Role / Device Role / Timing Role: Level-translating buffer with bushold for robustness against intermittent connections in vibration-prone environments. Use Value: HBM > 2000 V ESD rating withstands assembly and service handling; 3.5 ns enable time supports dynamic bus arbitration protocols. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit buffer/level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC32244APAG | Same 32-bit non-inverting buffer function, 5 V-tolerant I/O, but packaged in 100-pin TQFP (S-PQFP-G100); no bushold inputs | Requires external pull-ups on unused inputs; less suitable for high-density BGA layouts | Select when TQFP assembly infrastructure exists and bushold is not required |
| 74ALVCH32244AEC,518 | Same pinout and functionality, but built on ALVC process: faster propagation (2.3 ns typ), higher drive (±24 mA at 2.5 V), wider VCC range (1.65–3.6 V) | Higher speed and lower voltage operation; identical LFBGA96 package and footprint | Select when tighter timing budgets or 2.5 V operation are required; drop-in replacement with improved specs |
Compared with SN74LVC32244APAG, the 74LVCH32244AEC,518 offers bushold and finer-pitch BGA packaging; compared with 74ALVCH32244AEC,518, it trades minor speed reduction for broader 1.2 V minimum supply support and lower static current.
Availability
74LVCH32244AEC,518 is available at Aetrix Electronics and suitable for memory bus drivers, FPGA I/O expansion, industrial backplane interfaces, and automotive infotainment data hubs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVCH32244AEC,518 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Philips' pioneering logic IC development.
The 74LVCH32244AEC,518 belongs to NXP's LVCH family of low-voltage CMOS buffers, designed specifically for voltage-level translation and bus driving in mixed-supply digital systems where power efficiency, noise immunity, and 5 V interoperability are critical.
FAQ
What is the minimum supply voltage supported by the 74LVCH32244AEC,518?
The 74LVCH32244AEC,518 operates down to 1.2 V, enabling ultra-low-power system designs and compatibility with emerging 1.2 V core logic domains. This specification is validated across the full −40 °C to +85 °C temperature range and confirmed in the Recommended Operating Conditions table of the official datasheet.
Does the 74LVCH32244AEC,518 require external pull-up resistors on its inputs?
No, the 74LVCH32244AEC,518 features integrated bushold circuitry on all 32 data inputs, which actively maintains the last-valid logic state without external components. This eliminates the need for 32 discrete pull-up resistors, reducing BOM cost and PCB area while improving reliability in floating-input scenarios.
Can the 74LVCH32244AEC,518 safely interface with 5 V logic while powered from 1.2 V?
Yes, the 74LVCH32244AEC,518 supports 5 V-tolerant inputs and outputs: inputs accept up to 5.5 V regardless of VCC, and outputs drive 5 V loads in 3-state mode. This allows direct connection to 5 V peripherals even when the device is powered from 1.2 V, verified under both Recommended Operating and Limiting Values conditions.
What is the pin-compatible alternative to the 74LVCH32244AEC,518 with higher speed?
The 74ALVCH32244AEC,518 is a pin-compatible, functionally identical alternative with enhanced performance: 2.3 ns typical propagation delay (vs. 3.0 ns), ±24 mA drive at 2.5 V (vs. 3.0 V), and operation from 1.65 V to 3.6 V. It shares the same LFBGA96 package and pinout, making it a direct upgrade path where tighter timing or lower voltage operation is needed.
How does the 74LVCH32244AEC,518 handle power-up sequencing to avoid bus contention?
The 74LVCH32244AEC,518 requires nOE pins to be tied to VCC via a pull-up resistor during power-up to ensure outputs remain in high-impedance state until system initialization completes. The datasheet specifies the minimum resistor value based on the driver's current-sinking capability, preventing unintended bus conflicts before firmware configures the enable signals.
74LVCH32244AEC,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVCH
- Package/Case:
- 96-LFBGA
- Packaging:
- Tape & Reel (TR)
- 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,518 FAQ
1.How can I place an order for 74LVCH32244AEC,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVCH32244AEC,518 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,518 reliable?
The price and inventory of 74LVCH32244AEC,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVCH32244AEC,518 is usually 5 days.
3.What payment methods are accepted for 74LVCH32244AEC,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVCH32244AEC,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVCH32244AEC,518?
74LVCH32244AEC,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVCH32244AEC,518 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,518?
For technical support, including 74LVCH32244AEC,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVCH32244AEC,518 requirements.
6.How does Aetrix verify that 74LVCH32244AEC,518 is sourced from the original manufacturer or authorized distributors?
All 74LVCH32244AEC,518 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,518 meets industry standards.
7.What is the process for return or replacement of 74LVCH32244AEC,518?
All 74LVCH32244AEC,518 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVCH32244AEC,518, 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,518 part is unused and in its original packaging.
Return procedure for 74LVCH32244AEC,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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