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NXP Semiconductors 74ALVT16245DGG,118
- Part No.:
- 74ALVT16245DGG,118
- Manufacturer:
- NXP Semiconductors
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ALVT16245DGG,118.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,710
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Product details
Overview
74ALVT16245DGG,118 from NXP Semiconductors (formerly Philips) is a 2.5V/3.3V 16-bit non-inverting bus transceiver with 3-state outputs, bidirectional data flow controlled by DIR and OE inputs, ±64mA/–32mA drive capability, and 5V-tolerant I/O - deployed in high-speed memory and peripheral bus interfaces between mixed-voltage domains.
For engineers reviewing the 74ALVT16245DGG,118 datasheet, 74ALVT16245DGG,118 pinout, 74ALVT16245DGG,118 application, or 74ALVT16245DGG,118 equivalent, key selection criteria include VCC operating range (2.3–2.7V or 3.0–3.6V), bus-hold input retention, propagation delay ≤2.4ns at 3.3V, output disable timing ≤4.5ns, and TSSOP48 package compatibility with 0.5mm pitch PCB layouts.
Technical Context
This BiCMOS transceiver implements dual 8-bit bidirectional channels (A0–A7 and B0–B7), each with independent direction (nDIR) and output enable (nOE) control. It supports live insertion/extraction and power-up 3-state behavior to prevent bus contention during power sequencing.
Bus-hold circuitry on all A/B port inputs eliminates external pull-ups; I/O pins tolerate 5V signals while operating from 2.5V or 3.3V supplies. Latch-up protection exceeds 500mA per JEDEC Std 17, and ESD withstands ≥2000V HBM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.3–2.7V or 3.0–3.6V - enables interoperability across 2.5V logic and 3.3V system rails |
| tPLH / tPHL | ≤2.4ns at VCC = 3.3V, CL = 50pF - ensures sub-400MHz bus timing margin for DDR-200-class interfaces |
| IOL / IOH | 64mA sink / –32mA source - drives heavy capacitive loads (e.g., >150pF) without signal degradation |
| VIH / VIL | 1.7V / 0.7V at 3.3V - compatible with TTL-level controllers and legacy 5V peripherals |
| ICCZ | 70µA max at VCC = 3.3V, outputs disabled - minimizes standby current in powered-down subsystems |
| CI/O | 9pF - low pin capacitance preserves signal integrity on high-speed parallel buses |
| Bus-Hold Current | ±140µA at VCC = 3V - actively retains logic state on floating inputs without external components |
Pinout & Package
74ALVT16245DGG,118 is housed in a 48-pin plastic thin shrink small outline package (TSSOP48), body width 6.1mm, 0.5mm lead pitch, compliant with JEDEC MO-153. Pin 1 is marked via laser scribe or mold index; pin 1 corner is top-left when notch faces up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 24 | nDIR | Direction control: Low = A→B, High = B→A - enables full-duplex bus arbitration without external logic |
| 25, 48 | nOE | Active-low 3-state enable: asserted disables both A and B ports simultaneously - prevents bus conflicts during reset or sleep |
| 2–23, 26–47 (excl. GND/VCC) | nA0–nA7, nB0–nB7 | Bidirectional I/O pairs: electrically isolated when nOE high; support 5V-tolerant signaling regardless of VCC |
| 4, 10, 15, 21, 28, 34, 39, 45 | GND | Eight dedicated ground pins - reduce ground bounce and improve noise immunity in high-slew-rate operation |
| 7, 18, 31, 42 | VCC | Four distributed supply pins - minimize IR drop and stabilize local VCC under dynamic switching loads |
Key Features
| Feature | Design Value |
|---|---|
| 5V-tolerant I/O | Accepts 0–5.5V input signals while powered from 2.5V or 3.3V - eliminates level-shifter ICs in mixed-voltage systems |
| Bus-hold inputs | Retains last valid logic state on unused A/B pins - removes need for 10kΩ pull-up/down resistors and saves board space |
| Live insertion/extraction | Withstands hot-plug events without latch-up or damage - enables field-replaceable module designs in telecom backplanes |
| Power-up 3-state | Outputs remain high-impedance until VCC stabilizes above 1.2V - prevents spurious bus writes during power ramp |
| Latch-up immunity | ≥500mA per JEDEC Std 17 - ensures robustness against transient overvoltage and ground bounce in industrial environments |
Applications
| Memory Subsystem Interface | Peripheral Expansion Bus |
|---|---|
|
Use Scenario: Interfacing 3.3V microcontroller address/data bus to 2.5V SRAM or Flash memory. IC Role / Device Role: Bidirectional voltage-level translator and bus driver with direction control synchronized to memory read/write strobes. Use Value: Eliminates discrete level shifters; bus-hold retains address lines during memory access gaps, reducing setup-time violations. |
Use Scenario: Connecting PCI-like expansion slots to 2.5V SoC host controllers in embedded test equipment. IC Role / Device Role: Isolating and driving 16-bit data lanes between 3.3V slot and 2.5V processor domain with hot-swap support. Use Value: Live insertion tolerance allows module replacement without system shutdown; 64mA drive sustains signal integrity across 10cm backplane traces. |
| Industrial PLC Backplane | Legacy ISA Bus Bridge |
|
Use Scenario: Buffering sensor data from 5V analog front-end modules into a 3.3V FPGA-based controller. IC Role / Device Role: 5V-tolerant input receiver and 3.3V-compatible transmitter with configurable direction per byte lane. Use Value: Direct connection to 5V sensors avoids external clamping diodes; low propagation skew (<430ps) maintains timing alignment across multi-channel ADC reads. |
Use Scenario: Adapting vintage ISA cards (5V logic) to modern 3.3V embedded x86 hosts in medical imaging systems. IC Role / Device Role: Full 16-bit bidirectional bus transceiver with OE-controlled isolation during DMA cycles. Use Value: TTL-compatible VIH/VIL ensures reliable handshake with ISA's 5V control signals; 3-state disable prevents bus contention during CPU reset sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVC16245DGGR | Lower drive (–24mA/24mA), no bus-hold, 1.65–3.6V VCC only - lacks 5V I/O tolerance and live-insertion rating | Suitable for pure 3.3V/2.5V point-to-point links; not recommended for 5V peripheral interfacing | Select when cost sensitivity outweighs 5V tolerance and bus-hold requirements |
| 74LVT16245ADGG,118 | Same pinout and function but rated only for 3.3V VCC (3.0–3.6V); no 2.5V operation; identical AC specs and bus-hold | Valid only in 3.3V-only systems; cannot replace 74ALVT16245DGG,118 in dual-voltage designs | Choose if design uses fixed 3.3V rail and requires same footprint with reduced VCC range compliance |
Compared with SN74ALVC16245DGGR and 74LVT16245ADGG,118, the 74ALVT16245DGG,118 uniquely supports dual-supply operation (2.5V/3.3V), 5V-tolerant I/O, and live insertion - making it the sole option for backward-compatible industrial backplanes requiring mixed-voltage resilience and hot-swap capability.
Availability
74ALVT16245DGG,118 is available at Aetrix Electronics and suitable for memory subsystem interfaces, industrial PLC backplanes, legacy bus bridges, and peripheral expansion systems requiring stable component supply across extended temperature ranges (–40°C to +85°C).
Supply support for 74ALVT16245DGG,118 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, headquartered in Eindhoven, Netherlands, develops high-performance logic and interface solutions for automotive, industrial, and communications markets, with roots in Philips' semiconductor division.
The 74ALVT family was engineered for high-speed, low-voltage bus bridging in mixed-signal systems - specifically targeting applications where 2.5V/3.3V core logic must interoperate reliably with legacy 5V peripherals and memory devices.
FAQ
What is the maximum operating frequency supported by the 74ALVT16245DGG,118?
The 74ALVT16245DGG,118 does not specify a maximum clock frequency, but its propagation delay (tPLH/tPHL ≤2.4ns at 3.3V) supports reliable operation on buses with data rates up to approximately 400MHz in point-to-point configurations. Actual usable frequency depends on load capacitance, trace length, and termination - verified via timing analysis using the device's AC characteristics table.
Does the 74ALVT16245DGG,118 require external pull-up resistors on unused inputs?
No. The 74ALVT16245DGG,118 integrates bus-hold circuitry on all A and B port inputs, providing ±140µA overdrive current to retain the last valid logic state. This eliminates the need for external pull-up or pull-down resistors on floating inputs, simplifying layout and reducing BOM count.
Can the 74ALVT16245DGG,118 be used with a 2.5V supply and 5V input signals?
Yes. The 74ALVT16245DGG,118 supports 2.5V VCC operation (2.3–2.7V range) while tolerating input voltages up to 5.5V on all I/O pins. Its 5V-tolerant I/O architecture allows direct connection to legacy 5V peripherals without external level-shifting components.
What is the thermal performance limit for continuous operation of the 74ALVT16245DGG,118?
The 74ALVT16245DGG,118 is rated for operation from –40°C to +85°C ambient temperature. Its absolute maximum junction temperature is 150°C, and thermal design must ensure that power dissipation - especially under worst-case 64mA sink conditions - does not exceed this limit. Thermal resistance (θJA) for the TSSOP48 package is typically ~120°C/W.
Is the 74ALVT16245DGG,118 pin-compatible with other 48-pin ALVT transceivers?
Yes - the 74ALVT16245DGG,118 shares identical pinout and function with the 74ALVT16245DL (SSOP48) variant. Both use the same logic symbol, pin configuration, and electrical specifications. However, mechanical differences between TSSOP and SSOP packages require separate PCB footprints.
74ALVT16245DGG,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74ALVT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 2.3V ~ 2.7V, 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74ALVT16245DGG,118 FAQ
1.How can I place an order for 74ALVT16245DGG,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVT16245DGG,118 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 74ALVT16245DGG,118 reliable?
The price and inventory of 74ALVT16245DGG,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVT16245DGG,118 is usually 5 days.
3.What payment methods are accepted for 74ALVT16245DGG,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVT16245DGG,118 transactions.
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4.How is shipping managed for 74ALVT16245DGG,118?
74ALVT16245DGG,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVT16245DGG,118 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 74ALVT16245DGG,118?
For technical support, including 74ALVT16245DGG,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVT16245DGG,118 requirements.
6.How does Aetrix verify that 74ALVT16245DGG,118 is sourced from the original manufacturer or authorized distributors?
All 74ALVT16245DGG,118 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 74ALVT16245DGG,118 meets industry standards.
7.What is the process for return or replacement of 74ALVT16245DGG,118?
All 74ALVT16245DGG,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVT16245DGG,118, 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 74ALVT16245DGG,118 part is unused and in its original packaging.
Return procedure for 74ALVT16245DGG,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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