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Renesas 74FCT164245TPVG
- Part No.:
- 74FCT164245TPVG
- Manufacturer:
- Renesas
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74FCT164245TPVG.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,252
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Product details
Overview
74FCT164245TPVG from Renesas (formerly IDT) is a 16-bit bidirectional voltage-level translator IC enabling interoperability between 3.3V and 5V digital buses. It features dual supply operation (VCC1 = 5V ±10%, VCC2 = 2.7–3.6V), high-drive outputs (–32mA IOH, 64mA IOL on 5V port), and industrial temperature range (–40°C to +85°C). It is used in mixed-voltage backplane interfaces and hot-pluggable board designs.
For engineers reviewing the 74FCT164245TPVG datasheet, 74FCT164245TPVG pinout, 74FCT164245TPVG application, or 74FCT164245TPVG equivalent, key selection criteria include bidirectional level-shifting capability, power-off high-impedance behavior, TTL-compatible input thresholds, propagation delay ≤5 ns, and SSOP-48 green package compliance.
Technical Context
The 74FCT164245TPVG implements two independent 8-bit transceivers or one unified 16-bit transceiver via dedicated direction (xDIR) and output enable (xOE) controls. Both control inputs accept 3.3V or 5V logic levels, eliminating need for external level shifters.
Its dual-supply architecture isolates A-port (3.3V side) and B-port (5V side), with power-off disable ensuring high-impedance states on both ports when either VCC1 or VCC2 is unpowered - critical for live insertion and system-level bus arbitration in mixed-supply systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 / VCC2 | 5V ±10% / 2.7–3.6V - enables direct connection to standard 5V logic and 3.3V LVTTL/LVCMOS buses without external regulators |
| Propagation Delay | ≤5 ns (CL = 50pF, RL = 500Ω) - supports >100 MHz data rates in point-to-point or low-capacitance bus applications |
| IOH / IOL | –32mA / 64mA (B-port) - drives heavy capacitive loads (e.g., backplanes, long traces) without signal degradation |
| Input Thresholds | VIH ≥2.0V, VIL ≤0.8V - compatible with TTL and 3.3V CMOS logic families on both sides |
| Operating Temp | –40°C to +85°C - qualified for industrial environments including factory automation and telecom infrastructure |
| ESD Rating | >2000V HBM, >200V MM - robust against handling and system-level electrostatic discharge events |
| Power Off Leakage | ±100 μA (VCC1 = VCC2 = 0V) - prevents unintended current paths during hot-swap or partial-power-down sequences |
Pinout & Package
74FCT164245TPVG is housed in a 48-pin Shrink Small Outline Package (SSOP), lead-free and RoHS-compliant (Green designation "PVG"). The package has 0.5 mm pitch, 10.2 mm × 12.8 mm body size, and exposed thermal pad not connected internally.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Input (Active HIGH) | Determines data flow direction per 8-bit section: HIGH = A→B, LOW = B→A |
| 1OE, 2OE | Output Enable Input (Active LOW) | Disables both A and B ports to high-impedance state when HIGH; overrides DIR |
| 1A1–1A8, 2A1–2A8 | 3.3V-side I/O (Port A) | Bidirectional interface pins for 3.3V bus; tolerate 5V inputs due to clamp diodes |
| 1B1–1B8, 2B1–2B8 | 5V-side I/O (Port B) | Bidirectional interface pins for 5V bus; drive up to 64mA sink current |
| VCC1 | 5V Supply Pin | Power for B-port drivers and internal logic referencing 5V domain |
| VCC2 | 3.3V Supply Pin | Power for A-port drivers and input receivers referencing 3.3V domain |
| GND | Ground Reference | Common return for both supply domains; multiple pins reduce ground bounce |
Key Features
| Feature | Design Value |
|---|---|
| Live Insertion Support | Power-off disable ensures high-Z on both ports when either VCC1 or VCC2 is unpowered - enables safe hot-plug into powered backplanes |
| Mixed-Voltage Control Inputs | xDIR and xOE accept 3.3V or 5V logic levels - eliminates need for auxiliary level shifters on control lines |
| High-Drive 5V Outputs | B-port delivers 64mA sink current - directly drives terminated transmission lines and legacy 5V peripherals |
| Low Ground Bounce | TYP VOLP < 0.9V at VCC1 = 5V, VCC2 = 3.3V - maintains signal integrity under fast switching across noisy ground planes |
| Industrial Temperature Range | Specified from –40°C to +85°C - validated for continuous operation in harsh ambient conditions without derating |
Applications
| Industrial Backplane Interface | Hot-Pluggable Module Carrier |
|---|---|
Use Scenario: Interfacing a 3.3V FPGA-based control module with a legacy 5V peripheral bus in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional voltage translator managing data flow between mismatched supply domains while preserving timing integrity. Use Value: Eliminates discrete resistor-divider or active level-shifter solutions, reducing BOM count and PCB area by 60% versus discrete alternatives. | Use Scenario: Supporting field-replaceable compute cards in telecom line cards where modules are inserted/removed while system remains powered. IC Role / Device Role / Timing Role: Isolating 3.3V card-side logic from 5V backplane during insertion/removal via power-off high-Z behavior. Use Value: Prevents bus contention and latch-up during hot-swap transitions, meeting GR-63-CORE reliability requirements. |
| Legacy System Upgrade Bridge | Mixed-Supply Test Equipment |
Use Scenario: Upgrading aging 5V microcontroller subsystems with modern 3.3V sensors and ADCs without redesigning entire bus architecture. IC Role / Device Role / Timing Role: Translating control and data signals bidirectionally while maintaining setup/hold timing margins. Use Value: Enables drop-in replacement of 5V peripherals with 3.3V equivalents, cutting upgrade cost by ~40% versus full-board redesign. | Use Scenario: Signal conditioning and routing in automated test equipment requiring simultaneous 3.3V DUT interfacing and 5V instrumentation bus communication. IC Role / Device Role / Timing Role: Level-shifting trigger, clock, and data lines between instrument controller (5V) and DUT (3.3V). Use Value: Guarantees sub-5ns propagation matching across all 16 channels - essential for synchronized multi-channel stimulus/response capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC16T245RGYR | Single 3.3V supply (1.65–3.6V), supports 1.2V–3.6V translation; lower drive (–12/+12mA); 56-pin VQFN | Designed for ultra-low-voltage mobile SoC interconnects, not 5V legacy compatibility | Select when interfacing sub-3.3V logic only; avoid for 5V peripheral bridging |
| TXB0108PWR | Auto-direction sensing, single 1.2–3.6V supply, 8-bit, open-drain capable; no 5V-tolerant outputs | Targeted at I²C/SPI between low-voltage MCUs and sensors; lacks 5V drive capability | Choose for simple 3.3V↔1.8V sensor links; unsuitable for driving 5V loads or backplanes |
Compared with SN74AVC16T245RGYR and TXB0108PWR, the 74FCT164245TPVG uniquely supports true 3.3V↔5V bidirectional translation with high-current 5V outputs and industrial temperature rating - making it the only viable option for legacy system integration and backplane-level interfacing.
Availability
74FCT164245TPVG is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and embedded test equipment requiring stable component supply across extended product lifecycles.
Supply support for 74FCT164245TPVG 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 delivering microcontrollers, analog, power, and connectivity solutions for automotive, industrial, infrastructure, and IoT applications.
The 74FCT164245TPVG belongs to Renesas' legacy IDT logic portfolio, engineered specifically for robust, high-speed voltage translation in mixed-supply industrial systems - emphasizing reliability, hot-swap safety, and backward compatibility with 5V standards.
FAQ
What is the maximum data rate supported by the 74FCT164245TPVG?
The 74FCT164245TPVG supports data rates exceeding 100 MHz in typical configurations due to its ≤5 ns propagation delay (tPLH/tPHL) under CL = 50pF and RL = 500Ω. Real-world throughput depends on bus capacitance and termination; for 30 pF loads, clean edges are maintained up to 125 Mbps per channel. The 74FCT164245TPVG does not specify a formal maximum frequency but is widely deployed in 50–80 MHz synchronous bus interfaces.
Can the 74FCT164245TPVG operate with VCC2 = 2.7V while driving 5V logic?
Yes - the 74FCT164245TPVG is fully specified for VCC2 = 2.7V to 3.6V and maintains guaranteed VIH/VIL thresholds (VIH ≥2.0V, VIL ≤0.8V) across this range. Its B-port outputs deliver VOH ≥2.4V at IOL = 16mA even at VCC2 = 2.7V, satisfying TTL input requirements. This ensures reliable 3.3V-domain signaling into 5V logic when using the 74FCT164245TPVG.
Does the 74FCT164245TPVG require external pull-up resistors on control lines?
No - the 74FCT164245TPVG features internally biased inputs with hysteresis (VH = 150 mV) and accepts 3.3V or 5V logic levels directly on xDIR and xOE. Its IIH/IIL specifications (±5 μA) confirm CMOS-compatible input loading, eliminating need for external pull-ups or level shifters. This simplifies design and reduces component count when interfacing with diverse controller families.
How does the 74FCT164245TPVG handle power supply sequencing?
The 74FCT164245TPVG requires VCC1 ≥ (VCC2 – 0.5V) at all times. If violated (e.g., VCC2 powered before VCC1), both ports enter high-impedance state until valid sequencing is restored. This fail-safe behavior prevents bus contention and is explicitly defined in the datasheet's Power Supply Sequencing section - a critical design consideration for systems with independent 3.3V/5V rails.
Is the 74FCT164245TPVG pin-compatible with other FCT-series translators?
The 74FCT164245TPVG shares identical pinout and function mapping with the 74FCT164245CPVG (commercial temp) and 74FCT164245ATPVG (enhanced drive variant), but is not pin-compatible with non-164245 family members like 74FCT162245 or 74FCT16245. Always verify package footprint (SSOP-48) and signal assignment against the 74FCT164245TPVG-specific pin diagram before layout reuse.
74FCT164245TPVG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74FCT
- 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-BSSOP (0.295", 7.50mm Width)
74FCT164245TPVG FAQ
1.How can I place an order for 74FCT164245TPVG through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT164245TPVG 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 74FCT164245TPVG reliable?
The price and inventory of 74FCT164245TPVG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT164245TPVG is usually 5 days.
3.What payment methods are accepted for 74FCT164245TPVG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74FCT164245TPVG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74FCT164245TPVG?
74FCT164245TPVG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT164245TPVG 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 74FCT164245TPVG?
For technical support, including 74FCT164245TPVG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT164245TPVG requirements.
6.How does Aetrix verify that 74FCT164245TPVG is sourced from the original manufacturer or authorized distributors?
All 74FCT164245TPVG 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 74FCT164245TPVG meets industry standards.
7.What is the process for return or replacement of 74FCT164245TPVG?
All 74FCT164245TPVG units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT164245TPVG, 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 74FCT164245TPVG part is unused and in its original packaging.
Return procedure for 74FCT164245TPVG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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