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Renesas 74ALVC164245PAG
- Part No.:
- 74ALVC164245PAG
- Manufacturer:
- Renesas
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74ALVC164245PAG.pdf
- Description:
- IC TRANSLATOR BIDIR 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,751
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Product details
Overview
74ALVC164245PAG from Renesas Electronics (formerly IDT) is a 16-bit bidirectional 3.3V-to-5V level-shifting transceiver with 3-state outputs, dual-supply operation (VCCA = 2.7–3.6V, VCCB = 4.5–5.5V), ±24mA drive strength per output, and industrial temperature range (–40°C to +85°C). It enables asynchronous data bus communication between mixed-voltage systems such as 3.3V microcontrollers and 5V legacy peripherals.
For engineers reviewing the 74ALVC164245PAG datasheet, 74ALVC164245PAG pinout, 74ALVC164245PAG application, or 74ALVC164245PAG equivalent, key selection criteria include bidirectional voltage translation capability, 3-state control timing (tPZH ≤ 9.3 ns), rail-to-rail output swing, and TSSOP-48 package compatibility with high-density PCB layouts.
Technical Context
The 74ALVC164245PAG implements two independent 8-bit sections, each with separate direction (xDIR) and output enable (xOE) controls powered from VCCA. Its dual-rail architecture isolates A-port (3.3V domain) and B-port (5V domain) logic levels while maintaining signal integrity across voltage boundaries.
It uses advanced 0.5 µm CMOS technology to achieve low static power (0.4 µW typ.), ESD robustness (>2000V HBM), and tight output skew (<250 ps tSK(o)). The device supports heavy capacitive loads via high-current drivers without degrading propagation delay (tPLH/tPHL ≤ 5.9 ns at VCCA = 3.3V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCCA Range | 2.7V to 3.6V - powers A-port I/O and control inputs, enabling direct interface with 3.3V logic families |
| VCCB Range | 4.5V to 5.5V - powers B-port I/O, supporting legacy 5V TTL/CMOS bus standards |
| Drive Strength | ±24mA per output - sustains signal integrity driving 50 pF loads at full speed in mixed-voltage backplanes |
| Propagation Delay | tPLH/tPHL ≤ 5.9 ns (A→B), ≤ 6.7 ns (B→A) - ensures sub-10 ns latency for real-time inter-domain data transfer |
| Output Skew | <250 ps (tSK(o)) - minimizes timing mismatch across 16-bit parallel paths critical for synchronous bus handshaking |
| ESD Rating | >2000V HBM, >200V MM - protects against handling-induced transients during board assembly and field service |
| Operating Temp | –40°C to +85°C - certified for deployment in industrial control cabinets and telecom line cards |
Pinout & Package
TSSOP-48 package (Package Code: PAG48), 12.5 mm × 6.1 mm body, 0.5 mm pitch, exposed pad optional. Pin 1 marked by dot or bevelled corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Input | Determines data flow direction per 8-bit bank (L = B→A, H = A→B); referenced to VCCA |
| 1OE, 2OE | Output Enable Input | Active-low 3-state control for respective banks; referenced to VCCA |
| 1A1–1A8, 2A1–2A8 | A-Port I/O | 3.3V-domain bidirectional data lines; tolerate VIH up to 3.6V, VIL down to 0V |
| 1B1–1B8, 2B1–2B8 | B-Port I/O | 5V-domain bidirectional data lines; accept VIH ≥ 2.0V, reject VIL ≤ 0.8V |
| VCCA, VCCB | Supply Rails | Independent power pins - decoupling required per rail to suppress cross-talk and ground bounce |
| GND (Pins 3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47) | Ground Reference | 23 dedicated GND pins minimize impedance and ensure stable reference for both voltage domains |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Level Translation | Simultaneous 3.3V↔5V conversion per port pair without external biasing or direction latching logic |
| Rail-to-Rail Output Swing | VOH ≥ VCC – 0.2V (A-port), VOH ≥ 3.7V (B-port @ 24mA) - maximizes noise margin in noisy industrial environments |
| Low Static Power | ICCL ≤ 40 µA (VCCA), ICCL ≤ 40 µA (VCCB) - reduces thermal load in fanless embedded systems |
| High-Speed Timing Control | tPZH ≤ 9.3 ns (xOE→xBx), tPHZ ≤ 9.2 ns (xOE→xBx) - enables precise bus arbitration in time-critical protocols |
| Input Hysteresis | VH = 100 mV (both ports) - rejects slow-rising or noisy signals common in long trace or cable-connected interfaces |
Applications
| PCI Bus Interface | Industrial PLC Backplane |
|---|---|
Use Scenario: Connecting a 3.3V PCI Express controller to legacy 5V PCI add-in cards in test equipment chassis. IC Role / Device Role / Timing Role: Bidirectional voltage translator managing address/data strobes and control signals across voltage domains with sub-10 ns timing alignment. Use Value: Eliminates need for discrete resistor networks or multiple single-bit translators, reducing BOM count and layout area by >70% versus discrete solutions. | Use Scenario: Interfacing modern 3.3V FPGA-based I/O modules with legacy 5V analog input/output cards in programmable logic controllers. IC Role / Device Role / Timing Role: Level-shifting transceiver providing isolated 16-bit parallel data path between voltage-separated subsystems with synchronized 3-state control. Use Value: Maintains deterministic timing across all 16 bits (skew <250 ps), preventing metastability in cyclic scan-based I/O updates. |
| Telecom Line Card | Automated Test Equipment |
Use Scenario: Bridging 3.3V baseband processors to 5V legacy serial interface ASICs in DSLAM line cards operating in central office environments. IC Role / Device Role / Timing Role: Voltage translator enabling reliable hot-swap signaling and status reporting across mixed-supply domains under industrial temperature stress. Use Value: Withstands –40°C to +85°C ambient and >2000V HBM ESD, ensuring field reliability without derating or shielding. | Use Scenario: Routing high-speed digital stimulus and response signals between 3.3V pattern generators and 5V DUTs in boundary-scan test fixtures. IC Role / Device Role / Timing Role: Precision-level shifter delivering matched propagation delays and minimal skew for bit-accurate timing validation. Use Value: Enables 100+ MHz functional test vectors without setup/hold violations due to consistent tPLH/tPHL and low tSK(o). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar level-shifting transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC164245DGGR | TI part; same 16-bit bidirectional architecture, VCCA = 1.65–3.6V, VCCB = 2.3–3.6V - narrower voltage range, no 5V support | Not suitable for 5V legacy interface; limited to 3.3V↔2.5V/1.8V systems | Select only when interfacing sub-3.6V domains; not a drop-in replacement for 5V B-port use cases |
| 74LVC4245APW,118 | Nexperia part; identical pinout and function, VCCA = 1.2–3.6V, VCCB = 1.2–3.6V - lacks native 5V tolerance on B-port | Requires external level-shifting circuitry for 5V buses, increasing complexity and cost | Use only in fully 3.3V-or-lower systems; verify B-port VIH/VIL thresholds match host 5V logic if adapted |
Compared with SN74AVC164245DGGR and 74LVC4245APW,118, the 74ALVC164245PAG uniquely supports true 5V-tolerant B-port operation without external components, making it the sole choice for direct 3.3V↔5V bus bridging in industrial and telecom infrastructure.
Availability
74ALVC164245PAG is available at Aetrix Electronics and suitable for industrial PLC backplanes, telecom line cards, automated test equipment, and mixed-voltage PCI interface designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74ALVC164245PAG 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
Renesas Electronics Corporation is a global semiconductor leader formed through the merger of Renesas Technology and NEC Electronics, specializing in microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and infrastructure markets.
The 74ALVC164245PAG belongs to Renesas' legacy IDT logic portfolio, engineered specifically for robust voltage-domain interoperability in mission-critical industrial and communications equipment where reliability and mixed-supply compatibility are non-negotiable.
FAQ
What is the maximum supported data rate for 74ALVC164245PAG in a 3.3V-to-5V translation application?
The 74ALVC164245PAG does not specify a maximum data rate directly, but its propagation delay (tPLH/tPHL ≤ 6.7 ns) and output skew (<250 ps) support reliable operation up to approximately 100 MHz in well-terminated 16-bit parallel buses. Real-world throughput depends on load capacitance, PCB routing, and timing margins - design validation using the device's switching characteristics table is required for clocked applications.
Can 74ALVC164245PAG operate with VCCA = 2.5V and VCCB = 5V?
No. Per the datasheet, VCCA must be within 2.7V to 3.6V for guaranteed operation; 2.5V falls below the minimum rated supply. At 2.5V, input thresholds (VIH ≥ 2.0V) may still be met, but DC parameters like VOL, VOH, and ICC are not characterized, and timing performance degrades unpredictably. Use only within the specified 2.7–3.6V range for 74ALVC164245PAG.
Is 74ALVC164245PAG pin-compatible with other ALVC164245 variants like the SSOP-packaged 74ALVC164245PVG?
Yes. The 74ALVC164245PAG (TSSOP-48) and 74ALVC164245PVG (SSOP-48) share identical pinout, electrical specifications, and functional behavior. They differ only in package dimensions and thermal characteristics - TSSOP offers finer pitch (0.5 mm vs. 0.635 mm) and slightly better thermal resistance, but both are mechanically interchangeable in layouts designed for 48-pin shrink-outline packages.
Does 74ALVC164245PAG require external pull-up or pull-down resistors on control pins?
No. The 74ALVC164245PAG control inputs (1DIR, 2DIR, 1OE, 2OE) have defined VIH/VIL thresholds and internal input structure that ensures valid logic states without external biasing. However, floating control pins must be avoided - tie unused xDIR/xOE pins to VCCA (for HIGH) or GND (for LOW) to prevent undefined output states and excessive current draw.
How does the 74ALVC164245PAG handle simultaneous 3.3V-to-5V and 5V-to-3.3V translation on the same device?
The 74ALVC164245PAG supports concurrent bidirectional translation via its two independent 8-bit sections: one section can translate A→B (3.3V→5V) while the other translates B→A (5V→3.3V), controlled separately by 1DIR/2DIR and 1OE/2OE. This allows full-duplex operation across voltage domains without contention, provided direction and enable signals are sequenced correctly per section.
74ALVC164245PAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74ALVC
- Package/Case:
- Packaging:
- Tube
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Bidirectional
- Number of Circuits:
- 2
- Channels per Circuit:
- 8
- Voltage - VCCA:
- 2.7 V ~ 3.6 V
- Voltage - VCCB:
- 4.5 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TFSOP (0.240", 6.10mm Width)
74ALVC164245PAG FAQ
1.How can I place an order for 74ALVC164245PAG through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVC164245PAG 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 74ALVC164245PAG reliable?
The price and inventory of 74ALVC164245PAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVC164245PAG is usually 5 days.
3.What payment methods are accepted for 74ALVC164245PAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVC164245PAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVC164245PAG?
74ALVC164245PAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVC164245PAG 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 74ALVC164245PAG?
For technical support, including 74ALVC164245PAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVC164245PAG requirements.
6.How does Aetrix verify that 74ALVC164245PAG is sourced from the original manufacturer or authorized distributors?
All 74ALVC164245PAG 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 74ALVC164245PAG meets industry standards.
7.What is the process for return or replacement of 74ALVC164245PAG?
All 74ALVC164245PAG units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVC164245PAG, 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 74ALVC164245PAG part is unused and in its original packaging.
Return procedure for 74ALVC164245PAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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