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Nexperia USA Inc. 74AVC1T8128GSX
- Part No.:
- 74AVC1T8128GSX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74AVC1T8128GSX.pdf
- Description:
- IC TRANSLTR UNIDIRECTIONAL 8XSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,795
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Product details
Overview
74AVC1T8128GSX from Nexperia is a single dual-supply translating 2-input NOR gate with enable input, designed for voltage-level translation between mismatched low-voltage domains. It features independent VCC(A) and VCC(B) supplies (0.8 V to 3.6 V), with inputs A/B/E referenced to VCC(A) and output Y referenced to VCC(B), implementing logic Y = E + A•B. It supports high-speed interface bridging in mixed-voltage SoC interconnects, FPGA I/O expansion, and DDR memory subsystems.
For engineers reviewing the 74AVC1T8128GSX datasheet, 74AVC1T8128GSX pinout, 74AVC1T8128GSX application, or 74AVC1T8128GSX equivalent, key selection criteria include dual-supply translation capability, IOFF-enabled partial power-down, Suspend-mode high-impedance output, and guaranteed operation across -40 °C to +125 °C.
Technical Context
This device implements a true dual-rail logic gate where input logic thresholds scale with VCC(A), while output drive strength and voltage levels are defined by VCC(B). Its IOFF circuitry actively disables the output stage when either supply drops to GND, preventing backflow current during asymmetric power sequencing.
The functional table confirms active-low enable behavior (E = L enables NOR function; E = H forces Y = HIGH), and Suspend mode (Z-state) activates when VCC(A) = GND regardless of input states. Propagation delay ranges from 0.7 ns (3.3 V → 3.3 V) to 14.6 ns (1.2 V → 1.2 V) across temperature and voltage combinations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC(A) Range | 0.8 V to 3.6 V - defines input logic threshold scaling and enables translation from 0.8 V/1.2 V/1.5 V/1.8 V/2.5 V/3.3 V nodes |
| VCC(B) Range | 0.8 V to 3.6 V - sets output voltage swing and load drive capability for receiving domain |
| Propagation Delay | 0.7 ns to 14.6 ns - measured A/B/E to Y under -40 °C to +125 °C, defining maximum data rate per voltage pair |
| IOFF Leakage | ±1 μA max - ensures <1 μA backflow current during partial power-down, protecting upstream drivers |
| ESD Rating | HBM >8000 V, CDM >1000 V - meets industrial-grade robustness requirements without external protection |
| Operating Temp | -40 °C to +125 °C - qualified for extended-temperature industrial and automotive-adjacent applications |
| Supply Current | 8–11.5 μA typical - ultra-low static power enables always-on level-shifting in battery-sensitive systems |
Pinout & Package
XSON8 (SOT1203) package: extremely thin small outline, no leads, 1.35 × 1.0 × 0.35 mm body, 8-terminal surface-mount design optimized for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: VCC(A) | Input-domain supply rail | Reference for A, B, and E input thresholds; must be stable before enabling logic |
| 2: A | Data input | First NOR operand, referenced to VCC(A); accepts up to 3.6 V regardless of VCC(A) |
| 3: B | Data input | Second NOR operand, referenced to VCC(A); compatible with overvoltage-tolerant signaling |
| 4: GND | Common ground reference | Shared return path for both supply domains; requires low-inductance connection |
| 5: E | Enable input | Active-low control: E = LOW enables NOR function; E = HIGH forces Y = HIGH |
| 6: n.c. | No-connect terminal | Internally unconnected; must remain floating or tied to GND per layout best practice |
| 7: Y | Data output | NOR result referenced to VCC(B); transitions between 0 V and VCC(B) with rail-to-rail swing |
| 8: VCC(B) | Output-domain supply rail | Defines output logic high level and drive strength; powers internal output buffer |
Key Features
| Feature | Design Value |
|---|---|
| Dual-supply translation | Independent VCC(A)/VCC(B) rails support bidirectional voltage translation between any 0.8–3.6 V node pairs |
| IOFF partial power-down | Automatically disables output when either VCC drops to GND, eliminating backflow current in hot-swap or sleep modes |
| Suspend-mode Z-state | Y enters high-impedance OFF-state when VCC(A) = GND, isolating downstream circuitry during input-domain shutdown |
| JEDEC-compliant interfaces | Meets JESD8-12 through JESD8-B standards across six voltage bands, ensuring interoperability with JEDEC-spec devices |
| High-speed performance | Up to 500 Mbit/s data rate (1.8 V → 3.3 V), enabling use in DDR I/O buffers and high-throughput serial links |
Applications
| SoC Voltage Domain Bridging | FPGA I/O Expansion |
|---|---|
|
Use Scenario: Interfacing a 1.2 V ARM core with a 3.3 V peripheral bus in an embedded controller. IC Role / Device Role / Timing Role: Translates control signals (CS#, WR#, RD#) from 1.2 V domain to 3.3 V domain while maintaining setup/hold timing integrity. Use Value: Eliminates need for discrete resistor-divider or dedicated level shifter ICs, reducing BOM count and board area by 60%. |
Use Scenario: Extending FPGA bank I/O to support legacy 2.5 V or 1.8 V sensors in a reconfigurable test platform. IC Role / Device Role / Timing Role: Provides per-signal enable-controlled translation for GPIO expansion, preserving FPGA pin flexibility. Use Value: Enables dynamic voltage adaptation without FPGA reconfiguration; supports hot-plug sensor detection via E input. |
| DDR Memory Subsystem | Industrial PLC Backplane Interface |
|
Use Scenario: Level-shifting address/control lines between a 1.5 V DDR3 controller and 1.8 V DDR3L memory modules. IC Role / Device Role / Timing Role: NOR gate implements chip-select arbitration logic while translating voltage domains. Use Value: Guarantees sub-2 ns propagation delay margin at 1.5 V → 1.8 V, meeting DDR3 tDS/tDH timing budgets. |
Use Scenario: Isolating field I/O modules (24 V digital inputs) from a 3.3 V microcontroller in a programmable logic controller. IC Role / Device Role / Timing Role: Acts as enable-gated translator for status reporting lines, with Suspend mode disabling outputs during module removal. Use Value: Prevents signal contention during hot-swap maintenance; IOFF protects MCU pins from backfeed during field-side power loss. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply translating NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC1T8128DBVR | TSSOP-6 package (3.0 × 1.75 × 1.05 mm); single VCC pin (no VCC(B) separation); output referenced to same supply as inputs | Lacks true dual-rail translation; suitable only for uni-supply level shifting with external pull-up/pull-down | Select only if board space allows larger TSSOP and system uses identical input/output voltage domains. |
| 74LVC1G97GW | Single-supply 3.3 V operation only; no IOFF or Suspend mode; max 1.65 V input tolerance | Cannot translate below 1.65 V; unsuitable for 0.8–1.2 V domains or partial power-down scenarios | Choose only for cost-sensitive 3.3 V-only designs where power sequencing is fully controlled. |
Compared with SN74AVC1T8128DBVR and 74LVC1G97GW, the 74AVC1T8128GSX uniquely delivers independent VCC(A)/VCC(B) rails, IOFF-enabled power sequencing safety, and full -40 °C to +125 °C qualification-making it the sole option for robust mixed-voltage SoC interconnects requiring zero backflow current.
Availability
74AVC1T8128GSX is available at Aetrix Electronics and suitable for DDR memory subsystems, FPGA I/O expansion, SoC voltage domain bridging, and industrial PLC backplane interfaces requiring stable component supply across extended temperature ranges.
Supply support for 74AVC1T8128GSX 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 delivering high-performance logic, analog, and MOSFET solutions with focus on efficiency, reliability, and miniaturization for industrial, computing, and consumer applications.
The 74AVC1T8128 belongs to Nexperia's Advanced Very-Low-Voltage CMOS (AVC) logic family, engineered specifically for seamless voltage translation in heterogeneous low-power digital systems.
FAQ
What is the minimum recommended VCC(A) and VCC(B) voltage for guaranteed operation?
The device is fully specified from 0.8 V to 3.6 V for both VCC(A) and VCC(B), with static and dynamic parameters validated across this range. At 0.8 V, VIH is 0.70×VCC(A) (0.56 V min), VIL is 0.30×VCC(A) (0.24 V max), and propagation delay is characterized up to 14.6 ns at -40 °C to +125 °C.
How does the IOFF circuit behave when only VCC(A) is powered down?
When VCC(A) = GND while VCC(B) remains active, the device enters Suspend mode: output Y transitions to high-impedance (Z-state), and IOFF limits leakage to ±5 μA max, preventing current flow from VCC(B) into the disabled input domain.
Can the 74AVC1T8128GSX translate from 3.3 V to 1.2 V reliably?
Yes - with VCC(A) = 3.3 V and VCC(B) = 1.2 V, the device operates within spec: inputs A/B/E tolerate up to 3.6 V, output Y swings 0–1.2 V, and propagation delay is 4.7 ns (typical) at 25 °C, remaining within 11.1 ns (max) at +125 °C.
Is the n.c. pin (pin 6) required to be grounded or left floating?
Pin 6 is internally not connected and must be left floating per Nexperia's layout guidance; grounding it may introduce parasitic capacitance or noise coupling, potentially degrading signal integrity on adjacent pins 5 (E) and 7 (Y).
74AVC1T8128GSX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AVC
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Unidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 2
- Voltage - VCCA:
- 0.8 V ~ 3.6 V
- Voltage - VCCB:
- 0.8 V ~ 3.6 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Non-Inverted
- Data Rate:
- 500Mbps
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-XFDFN
74AVC1T8128GSX FAQ
1.How can I place an order for 74AVC1T8128GSX through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AVC1T8128GSX 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 74AVC1T8128GSX reliable?
The price and inventory of 74AVC1T8128GSX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AVC1T8128GSX is usually 5 days.
3.What payment methods are accepted for 74AVC1T8128GSX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AVC1T8128GSX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AVC1T8128GSX?
74AVC1T8128GSX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AVC1T8128GSX 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 74AVC1T8128GSX?
For technical support, including 74AVC1T8128GSX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AVC1T8128GSX requirements.
6.How does Aetrix verify that 74AVC1T8128GSX is sourced from the original manufacturer or authorized distributors?
All 74AVC1T8128GSX 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 74AVC1T8128GSX meets industry standards.
7.What is the process for return or replacement of 74AVC1T8128GSX?
All 74AVC1T8128GSX units undergo pre-shipment inspection (PSI). If there is an issue with 74AVC1T8128GSX, 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 74AVC1T8128GSX part is unused and in its original packaging.
Return procedure for 74AVC1T8128GSX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74AVC1T8128GSX Tags
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