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Renesas 74FCT164245TPVG8
- Part No.:
- 74FCT164245TPVG8
- Manufacturer:
- Renesas
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74FCT164245TPVG8.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 48SSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
74FCT164245TPVG8 from Renesas Electronics is a FAST CMOS 16-bit bidirectional voltage-level translator enabling interoperability between 3.3V and 5V buses. It features dual supply operation (VCC1 = 5V ±10%, VCC2 = 2.7V–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 74FCT164245TPVG8 datasheet, 74FCT164245TPVG8 pinout, 74FCT164245TPVG8 application, or 74FCT164245TPVG8 equivalent, key selection criteria include bidirectional 3.3V↔5V translation capability, power-off disable for live insertion, TTL-compatible input thresholds, and SSOP-48 package compatibility with high-density PCB layouts.
Technical Context
The 74FCT164245TPVG8 implements two independent 8-bit transceivers or one unified 16-bit transceiver via separate DIR/OE controls per side. Direction is determined by xDIR inputs, while xOE overrides direction and places both ports in high-impedance state. Control inputs accept 3.3V or 5V logic levels, eliminating level-shifting requirements for control signals.
It uses advanced dual-metal CMOS technology with power-off disable on both A (3.3V) and B (5V) ports, supporting live insertion into powered backplanes. Output buffers are optimized for low ground bounce (VOLP < 0.9V) and driving high-capacitance loads up to 50pF at ≤5ns propagation delay (tPLH/tPHL).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC1 / VCC2 | 5V ±10% (B port) and 2.7V–3.6V (A port): enables strict separation of 5V logic domain from 3.3V domain with safe sequencing margin (VCC1 ≥ VCC2 – 0.5V) |
| Propagation Delay | 1.5–5 ns (CL = 50pF, RL = 500Ω): supports >100 MHz data rates in point-to-point or lightly loaded bus applications |
| Output Drive | –32 mA IOH / 64 mA IOL on B port: drives terminated 5V TTL loads and low-impedance backplanes without external buffers |
| Input Thresholds | VIH = 2.0V min, VIL = 0.8V max: ensures reliable recognition of 3.3V and 5V logic levels on all control and I/O pins |
| ESD Rating | >2000V HBM, >200V MM: meets industrial handling requirements without additional protection circuitry |
| Operating Temp | –40°C to +85°C: qualified for extended industrial environments including factory automation and telecom infrastructure |
Pinout & Package
74FCT164245TPVG8 is housed in a 48-pin Shrink Small Outline Package (SSOP), green RoHS-compliant, with 0.5 mm pitch and 10.2 mm × 12.8 mm body size. Pin assignment supports dual 8-bit groups (1A1–1A8/1B1–1B8 and 2A1–2A8/2B1–2B8), two DIR/OE pairs, and distributed VCC/GND for noise suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR | Direction Control Input | Active-HIGH signal selecting data flow direction: LOW = B→A, HIGH = A→B; accepts 3.3V or 5V logic |
| 1OE, 2OE | Output Enable Input | Active-LOW override disabling both A and B ports simultaneously into high-Z; enables bus sharing and hot-swap isolation |
| 1A1–1A8, 2A1–2A8 | 3.3V Port I/O | Bidirectional 3.3V-side interface pins (A port); tolerate 5V inputs due to clamp diodes and VIH/VIL specs |
| 1B1–1B8, 2B1–2B8 | 5V Port I/O | Bidirectional 5V-side interface pins (B port); deliver full TTL drive strength and meet 5V VIH/VIL thresholds |
| VCC1 (pins 10, 21, 39) | 5V Supply | Primary power for B-port output drivers and internal logic; must be ≥ VCC2 – 0.5V at all times |
| VCC2 (pins 15, 31) | 3.3V Supply | Power for A-port I/O and control logic; operates down to 2.7V for low-power 3.3V systems |
| GND (pins 9, 20, 29, 40, 48) | Ground Reference | Multiple dedicated GND pins minimize ground bounce and improve signal integrity across 16-bit data paths |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Level Translation | Simultaneous 3.3V ↔ 5V translation on same device without external direction logic or discrete translators |
| Live Insertion Support | Power-off disable on both ports allows safe insertion/removal into powered backplanes without disrupting system operation |
| Mixed-Voltage Control Inputs | xDIR/xOE accept 3.3V or 5V logic levels-no level shifters needed for control signals from either domain |
| High-Drive 5V Outputs | 64 mA sink current on B port drives heavy capacitive loads (e.g., 50pF buses) and legacy TTL peripherals directly |
| Low Ground Bounce | VOLP < 0.9V ensures clean signal edges and reduced crosstalk in dense 16-bit parallel interfaces |
Applications
| Industrial Backplane Interface | Embedded System Voltage Bridging |
|---|---|
Use Scenario: Interfacing a 3.3V FPGA-based controller module with a legacy 5V ISA or VME backplane in programmable logic controllers. IC Role / Device Role / Timing Role: Bidirectional voltage translator managing data/address strobes between domains with sub-5ns timing alignment. Use Value: Eliminates need for two separate unidirectional translators and simplifies PCB routing with single 48-pin SSOP footprint. | Use Scenario: Connecting a 3.3V microcontroller's parallel bus to 5V peripheral ICs (e.g., EPROM, LCD controller) in medical diagnostic equipment. IC Role / Device Role / Timing Role: Level-shifting transceiver enabling synchronous read/write cycles across supply domains without clock domain crossing logic. Use Value: Maintains full 16-bit throughput with guaranteed setup/hold margins under industrial temperature extremes. |
| Hot-Swappable Module Carrier | Automated Test Equipment (ATE) Fixture |
Use Scenario: Carrier board in modular test instrumentation where daughter cards (3.3V) plug into a powered 5V mainframe chassis. IC Role / Device Role / Timing Role: Isolation and translation element ensuring zero bus contention during insertion/removal via OE-controlled high-Z states. Use Value: Enables true hot-swap capability without sequenced power rails or complex supervisor ICs. | Use Scenario: Signal conditioning layer in ATE pin electronics modules interfacing 3.3V ASICs with 5V DUT drivers and comparators. IC Role / Device Role / Timing Role: High-speed bidirectional translator preserving edge fidelity for digital pattern generation and response capture. Use Value: Delivers <5ns propagation skew across all 16 bits, critical for timing-critical parametric testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC16T245DGGR | Operates at 1.2V–3.6V on A port, 1.2V–3.6V on B port; no native 5V tolerance-requires external resistors or clamping for 5V systems | Suitable only for dual 3.3V/2.5V or 3.3V/1.8V translation; not drop-in for 5V bus interfaces | Select when translating between sub-3.6V domains with ultra-low power needs; avoid for direct 5V integration. |
| TXB0108PWR | Auto-direction sensing; 1.2V–3.6V to 1.65V–5.5V; lower drive (±24mA); higher propagation delay (≤12ns typical) | Eliminates DIR pin but adds latency and lacks robust 5V drive; unsuitable for high-current backplane loading | Prefer for space-constrained, low-pin-count applications with moderate speed and no high-current 5V loads. |
Compared with SN74AVC16T245DGGR and TXB0108PWR, the 74FCT164245TPVG8 uniquely delivers native 5V-tolerant, high-drive (64mA) translation with sub-5ns timing and industrial temperature support-making it the only choice for legacy 5V backplane bridging in harsh environments.
Availability
74FCT164245TPVG8 is available at Aetrix Electronics and suitable for industrial backplane interfaces, embedded voltage-bridging systems, hot-swappable module carriers, and automated test equipment requiring stable component supply across long production lifecycles.
Supply support for 74FCT164245TPVG8 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 SoC solutions for automotive, industrial, infrastructure, and IoT applications.
The 74FCT164245TPVG8 belongs to Renesas' legacy IDT FCT logic family, designed specifically for robust, high-speed bidirectional voltage translation in mixed-supply industrial systems where reliability and timing precision are critical.
FAQ
What is the maximum capacitive load the 74FCT164245TPVG8 can drive on its 5V port?
The 74FCT164245TPVG8 is characterized for CL = 50pF in switching specifications and supports sustained 64mA IOL drive, enabling reliable operation into typical backplane loads up to 50pF. Its low VOLP (<0.9V) ensures signal integrity even under these conditions. For heavier loads, verify timing margins using the 1.5–5ns propagation delay spec at CL = 50pF and RL = 500Ω.
Does the 74FCT164245TPVG8 require external pull-up or pull-down resistors on DIR or OE pins?
No, the 74FCT164245TPVG8 has no internal weak pull-ups or pull-downs on DIR or OE pins, but its input thresholds (VIH ≥ 2.0V, VIL ≤ 0.8V) allow direct connection to 3.3V or 5V GPIO without external biasing. External resistors are only needed if driving from open-drain or floating sources-standard CMOS outputs interface directly.
Can the 74FCT164245TPVG8 operate with VCC2 = 2.7V while maintaining full 16-bit functionality?
Yes, the 74FCT164245TPVG8 is fully specified over VCC2 = 2.7V to 3.6V. At 2.7V, DC parameters including VOH (≥2.4V), VOL (≤0.4V), and IIH/IIL remain within limits, and switching performance degrades only marginally (tPLH/tPHL increases ≤0.5ns vs. 3.3V). All 16-bit channels function identically across this range.
Is the 74FCT164245TPVG8 pin-compatible with earlier IDT 74FCT164245 variants in SSOP-48?
Yes, the 74FCT164245TPVG8 shares identical pinout, electrical behavior, and functional block diagram with all IDT-branded 74FCT164245T devices in SSOP-48 (e.g., 74FCT164245TPVG), differing only in RoHS compliance and tape-and-reel packaging (the "8" suffix). No PCB redesign is required for migration.
What happens to the 74FCT164245TPVG8 outputs when VCC1 = 0V and VCC2 remains powered?
When VCC1 = 0V and VCC2 is active, the 74FCT164245TPVG8 places all B-port outputs in high-impedance state and disables internal logic driving them. A-port I/O remains functional but cannot drive B-port lines. This power-off disable feature prevents bus contention and enables safe hot insertion into powered 5V systems.
74FCT164245TPVG8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- 74FCT
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- 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)
74FCT164245TPVG8 FAQ
1.How can I place an order for 74FCT164245TPVG8 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74FCT164245TPVG8 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 74FCT164245TPVG8 reliable?
The price and inventory of 74FCT164245TPVG8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74FCT164245TPVG8 is usually 5 days.
3.What payment methods are accepted for 74FCT164245TPVG8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74FCT164245TPVG8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74FCT164245TPVG8?
74FCT164245TPVG8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74FCT164245TPVG8 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 74FCT164245TPVG8?
For technical support, including 74FCT164245TPVG8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74FCT164245TPVG8 requirements.
6.How does Aetrix verify that 74FCT164245TPVG8 is sourced from the original manufacturer or authorized distributors?
All 74FCT164245TPVG8 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 74FCT164245TPVG8 meets industry standards.
7.What is the process for return or replacement of 74FCT164245TPVG8?
All 74FCT164245TPVG8 units undergo pre-shipment inspection (PSI). If there is an issue with 74FCT164245TPVG8, 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 74FCT164245TPVG8 part is unused and in its original packaging.
Return procedure for 74FCT164245TPVG8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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