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NXP Semiconductors 74LVC32245AEC,557
- Part No.:
- 74LVC32245AEC,557
- Manufacturer:
- NXP Semiconductors
- Package:
- 96-LFBGA
- Datasheet:
-
74LVC32245AEC,557.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 96LFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:14,250
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Product details
Overview
74LVC32245AEC,557 from Nexperia is a 32-bit non-inverting bus transceiver with four independent send/receive (nDIR) and output enable (nOE) controls, 5 V-tolerant I/Os, 2.3 V–3.6 V supply range, and LFBGA96 packaging. It enables bidirectional data flow between mixed-voltage buses (e.g., 3.3 V CPU and 5 V peripheral), supports hot insertion via 5.5 V-tolerant outputs in 3-state, and operates from −40 °C to +125 °C.
For engineers reviewing the 74LVC32245AEC,557 datasheet, 74LVC32245AEC,557 pinout, 74LVC32245AEC,557 application, or 74LVC32245AEC,557 equivalent, key selection criteria include 5 V tolerance on all I/Os, multibyte flow-through pinout for PCB routing efficiency, low propagation delay (≤4.5 ns at 3.3 V), JEDEC-compliant voltage ranges (JESD8-5A/JESD8-C), and ESD robustness (HBM >2000 V).
Technical Context
This transceiver implements four independent 8-bit bidirectional channels, each with dedicated nDIR (direction control) and nOE (active-low 3-state enable). Each channel isolates its A and B buses when nOE is HIGH, and routes signals from A→B or B→A based on nDIR logic level.
It uses CMOS technology with rail-to-rail input thresholds compliant across 1.65 V–3.6 V VCC, supports TTL-level interfacing, and features low-inductance multiple VCC/GND ball assignments (8 VCC, 16 GND) to suppress ground bounce and noise in high-speed parallel bus systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Bus width | 32-bit (4 × 8-bit independent channels) |
| Supply voltage range | 2.3 V to 3.6 V - supports industrial temperature operation without derating |
| I/O voltage tolerance | Up to 5.5 V - allows safe connection to 5 V logic while powered from 3.3 V |
| Propagation delay | ≤4.5 ns (VCC = 3.0–3.6 V) - enables reliable timing in ≥100 MHz parallel bus systems |
| 3-state enable/disable time | ≤7.0 ns (enable), ≤7.0 ns (disable) - minimizes bus contention windows during direction switching |
| Operating temperature | −40 °C to +125 °C - qualified for under-hood and industrial control environments |
| ESD protection | HBM >2000 V, CDM >1000 V - ensures robustness during board handling and system integration |
Pinout & Package
LFBGA96 package (SOT536-1): 13.5 mm × 5.5 mm × 1.05 mm body, 96 solder balls, fine-pitch (0.8 mm), with 8 VCC and 16 GND balls distributed for low-noise power delivery.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A3, H3, J3, T3 | nDIR (n = 1–4) | Active-HIGH direction control per 8-bit channel: HIGH = A→B, LOW = B→A |
| A4, H4, J4, T4 | nOE (n = 1–4) | Active-LOW 3-state enable: LOW = enabled, HIGH = high-impedance isolation |
| A5–D6, E5–H6, J5–M6, N5–T6 | 1A[0:7]–4A[0:7] | Channel A-side bidirectional I/O ports (input or output depending on nDIR) |
| A1–D2, E1–H2, J1–M2, N1–T2 | 1B[0:7]–4B[0:7] | Channel B-side bidirectional I/O ports (input or output depending on nDIR) |
| B3, B4, D3, D4, E3, E4, G3, G4, K3, K4, M3, M4, N3, N4, R3, R4 | GND | 16 dedicated ground balls - reduce ground bounce and improve signal integrity |
| C3, C4, F3, F4, L3, L4, P3, P4 | VCC | 8 dedicated supply balls - minimize IR drop and support high-current switching |
Key Features
| Feature | Design Value |
|---|---|
| Multibyte flow-through pinout | Sequential A/B port mapping per channel (e.g., 1A0–1A7 adjacent to 1B0–1B7) simplifies layer routing and reduces crosstalk in dense PCB layouts |
| 5 V tolerant I/Os at 3.3 V supply | Accepts 0–5.5 V inputs and drives up to 5.5 V in 3-state - eliminates level shifters in mixed-voltage backplanes |
| Hot-insertion capable outputs | Withstands 5.5 V applied to outputs while VCC = 0 V - enables safe live insertion into powered backplanes |
| JEDEC-compliant voltage ranges | Fully compliant with JESD8-5A (2.3–2.7 V) and JESD8-C (2.7–3.6 V) - guarantees interoperability with standard LVC logic families |
| Low-noise power architecture | 8 VCC + 16 GND balls with symmetric placement - reduces simultaneous switching noise (SSN) in 32-bit wide data transfers |
Applications
| Industrial PLC Backplane Interface | Automotive Diagnostic Gateway |
|---|---|
Use Scenario: Interfacing a 3.3 V microcontroller unit to legacy 5 V CAN/LIN transceivers and sensor modules on a modular I/O carrier board. IC Role / Device Role / Timing Role: Bidirectional voltage-translating transceiver managing data flow between MCU and 5 V peripherals; direction controlled per module slot. Use Value: Eliminates discrete level shifters, reduces BOM count by 4× per slot, and maintains <4.5 ns propagation delay for deterministic response in real-time diagnostics. |
Use Scenario: Isolating and translating signals between a 3.3 V automotive application processor and 5 V OBD-II diagnostic hardware in a telematics control unit. IC Role / Device Role / Timing Role: 32-bit bus buffer enabling concurrent access to multiple diagnostic interfaces (K-Line, UDS, J1939) with independent direction control. Use Value: Supports hot-plug detection of diagnostic tools via 5.5 V-tolerant I/Os and meets −40 °C to +125 °C ambient requirements without derating. |
| High-Density FPGA Mezzanine Card | Medical Imaging Data Acquisition Module |
Use Scenario: Bridging a Xilinx Kintex FPGA's 3.3 V I/O bank to external 5 V ADC/DAC daughterboards in a reconfigurable signal processing card. IC Role / Device Role / Timing Role: Multichannel transceiver providing isolated, direction-controlled paths for parallel pixel data, control lines, and status signals. Use Value: Flow-through pinout enables straight-through trace routing, minimizing skew across 32-bit data words; 1.05 mm profile fits tight stacking height constraints. |
Use Scenario: Connecting a 3.3 V ARM-based imaging controller to 5 V analog front-end ASICs and high-speed parallel ADCs in portable ultrasound equipment. IC Role / Device Role / Timing Role: Voltage-agile bus interface ensuring signal integrity during burst-mode acquisition of RF echo data at up to 100 MSPS. Use Value: Sub-7 ns enable/disable times prevent bus contention during rapid mode switching; 2000 V HBM ESD rating protects against clinical environment discharge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 32-bit bidirectional bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC8T245RHLR | 8-bit (not 32-bit); QFN-24 package; single nDIR/nOE pair | Requires four devices to match 32-bit width; higher board area and routing complexity | Select only when space-constrained designs accept multi-device implementation and lower channel independence |
| 74AVC32T245ZQLR | Wider VCC range (1.2–3.6 V); higher speed (tpd ≤3.2 ns @ 3.3 V); same LFBGA96 | Not qualified for +125 °C operation (max +85 °C); lacks JESD8-5A compliance | Prefer for high-speed consumer applications below 85 °C; avoid where extended temperature or JEDEC compliance is mandatory |
Compared with SN74LVC8T245RHLR, the 74LVC32245AEC,557 delivers full 32-bit integration in one package, reducing layout effort and inter-device skew. Against 74AVC32T245ZQLR, it trades marginal speed gain for guaranteed +125 °C operation and broader JEDEC voltage standard coverage - critical for industrial and automotive control systems.
Availability
74LVC32245AEC,557 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive diagnostic gateways, FPGA mezzanine cards, and medical imaging modules requiring stable component supply across extended temperature and mixed-voltage conditions.
Supply support for 74LVC32245AEC,557 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 specializing in high-performance, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74LVC32245A belongs to Nexperia's LVC logic family, engineered for low-power, 5 V-tolerant bidirectional interfacing in space- and thermal-constrained embedded systems operating across industrial and automotive temperature ranges.
FAQ
What is the maximum allowable input voltage when VCC = 0 V?
When VCC = 0 V, the device supports hot-insertion: inputs and outputs tolerate up to 5.5 V without damage. This is confirmed in Table 4 (Recommended Operating Conditions) and Table 2 (Pin Description), where VI and VO ratings extend to 5.5 V regardless of VCC state. The IOFF specification (≤±10 µA at VCC = 0 V, VI/VO = 5.5 V) further validates safe operation during power sequencing.
Can nOE and nDIR be tied together for simplified control?
No - nOE and nDIR serve distinct functions and must be driven separately. nOE (active LOW) controls 3-state isolation; tying it to nDIR would disable the bus whenever direction changes, breaking continuous data flow. The functional table (Table 3) shows that nOE = HIGH forces Z-state regardless of nDIR value. Independent control is required for glitch-free bidirectional operation.
How many ground balls does the LFBGA96 package have, and why does it matter?
The LFBGA96 package has 16 dedicated GND balls (listed in Table 2: B3, B4, D3, D4, E3, E4, G3, G4, K3, K4, M3, M4, N3, N4, R3, R4). This high GND count minimizes ground impedance and suppresses simultaneous switching noise (SSN) during 32-bit parallel transitions - directly improving signal integrity and timing margin in high-speed bus applications.
Is this device suitable for automotive applications per AEC-Q100?
No - the 74LVC32245AEC,557 is not AEC-Q100 qualified. The datasheet explicitly states "Non-automotive qualified products" in Section 15.3 and specifies qualification only to industrial temperature (−40 °C to +125 °C), not automotive stress testing. For automotive use, Nexperia offers AEC-Q100 qualified variants like the 74LVC32245A-Q100, which undergoes additional reliability screening.
74LVC32245AEC,557 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVC
- Package/Case:
- 96-LFBGA
- Packaging:
- Tray
- Product Status:
- Active
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 96-LFBGA (13.5x5.5)
74LVC32245AEC,557 FAQ
1.How can I place an order for 74LVC32245AEC,557 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC32245AEC,557 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 74LVC32245AEC,557 reliable?
The price and inventory of 74LVC32245AEC,557 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC32245AEC,557 is usually 5 days.
3.What payment methods are accepted for 74LVC32245AEC,557?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC32245AEC,557 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC32245AEC,557?
74LVC32245AEC,557 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC32245AEC,557 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 74LVC32245AEC,557?
For technical support, including 74LVC32245AEC,557 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC32245AEC,557 requirements.
6.How does Aetrix verify that 74LVC32245AEC,557 is sourced from the original manufacturer or authorized distributors?
All 74LVC32245AEC,557 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 74LVC32245AEC,557 meets industry standards.
7.What is the process for return or replacement of 74LVC32245AEC,557?
All 74LVC32245AEC,557 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC32245AEC,557, 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 74LVC32245AEC,557 part is unused and in its original packaging.
Return procedure for 74LVC32245AEC,557:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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