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Diodes Incorporated 74AUP1T34FZ4-7
- Part No.:
- 74AUP1T34FZ4-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-XFDFN
- Datasheet:
-
74AUP1T34FZ4-7.pdf
- Description:
- LOGIC AUP 1G TRANSLATOR X2-DFN14
- Quantity:
- Payment:
- Shipping:
Inventory:4,930
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Product details
Overview
74AUP1T34FZ4-7 from Diodes Incorporated is a single-bit, dual-supply, noninverting voltage-level translator IC with 3-state output and IOFF functionality. It enables unidirectional logic translation from A to Y across independent VCCA (0.9V–3.6V) and VCCB (0.9V–3.6V) domains, supports partial power-down isolation, and operates from –40°C to +125°C in the X2-DFN1410-6 package.
For engineers reviewing the 74AUP1T34FZ4-7 datasheet, 74AUP1T34FZ4-7 pinout, 74AUP1T34FZ4-7 application, or 74AUP1T34FZ4-7 equivalent, this device is selected for low-voltage bidomain interfacing where supply-independent input thresholds, sub-5μA static current, and robust 3.6V back-drive protection are required.
Technical Context
The 74AUP1T34FZ4-7 implements a dual-rail CMOS buffer architecture with VCCA-referenced input switching thresholds and VCCB-tracked VOH. Its IOFF circuitry activates when VCCB = 0V, disabling input circuits and eliminating leakage regardless of A-pin voltage (0V–3.6V).
Three-state behavior is triggered solely by VCCA = 0V, placing Y in high-impedance while maintaining up to 3.6V electrical isolation. Propagation delay ranges from 4.2ns (3V/3V, CL=5pF) to 43.7ns (0.9V/0.9V, CL=30pF), with hysteresis of 100mV typical for noise immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCCA Range | 0.9V to 3.6V: Enables interface with ultra-low-voltage cores (e.g., 0.9V FPGA I/O) while maintaining rail-to-rail compatibility |
| VCCB Range | 0.9V to 3.6V: Supports output translation to diverse rails including 1.2V, 1.8V, 2.5V, and 3.3V systems |
| IOFF Threshold | VCCB = 0V: Guarantees zero input current at A pin even if A floats or is driven to 3.6V, enabling safe hot-insertion |
| ICC Max | 5μA: Ensures negligible quiescent power draw in always-on subsystems like battery-backed logic monitors |
| tPD Max | 43.7ns @ 0.9V/0.9V, CL=30pF: Specifies worst-case timing margin for low-power domain crossings in portable devices |
| ESD HBM | 5kV: Provides system-level ESD robustness without external protection diodes in handheld interfaces |
| Operating Temp | –40°C to +125°C: Validated for under-hood automotive modules and industrial PLC I/O expansion cards |
Pinout & Package
X2-DFN1410-6: 1.4mm × 1.0mm, 0.5mm pitch, 6-terminal leadless package with exposed thermal pad; moisture sensitivity level 1; NiPdAu terminal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCCA | Supply for input stage | Bias reference for A-pin threshold; powers internal input circuitry only - disconnecting it disables all input functions |
| A | Data input | Single-ended logic input with switching threshold at 0.65×VCCA (for VCCA ≥ 0.9V); accepts 0–3.6V signals regardless of VCCB state |
| GND | Ground reference | Common return path for both supply domains; must be connected to system ground plane for noise control |
| Y | Data output | CMOS output with VOH = VCCB – 0.2V (min); drives loads up to ±6mA at 3V while tracking VCCB rail |
| NC | No-connect | Internally unused terminal; may be left floating or tied to GND/VCCB for mechanical stability - no electrical effect |
| VCCB | Supply for output stage | Determines output high voltage and enables/disables input isolation; 0V forces A-pin into high-Z input disable mode |
Key Features
| Feature | Design Value |
|---|---|
| Dual-rail translation | Independent VCCA and VCCB supplies allow simultaneous operation between disparate logic families (e.g., 1.2V ASIC ↔ 3.3V MCU) |
| IOFF-enabled isolation | VCCB = 0V disables A-pin input circuitry completely - zero input current even with A driven to 3.6V |
| True 3-state on VCCA loss | Output Y enters high-impedance when VCCA = 0V, preventing backdrive into powered VCCB domains during power sequencing |
| Ultra-low ICC | 5μA max ICCA+ICCB ensures <15μW static power at 3V - critical for always-on sensor hub interfaces |
| High-noise immunity | 100mV typical hysteresis rejects transient coupling in dense PCB layouts near RF or switching regulators |
Applications
| Mobile SoC Interfacing | Industrial I/O Expansion |
|---|---|
Use Scenario: Connecting a 0.9V mobile application processor I/O bank to a 1.8V PMIC status line in a smartphone power management subsystem. IC Role / Device Role / Timing Role: Unidirectional level shifter translating processor reset signal to PMIC enable input with sub-5ns delay at 1.8V/0.9V. Use Value: Eliminates need for discrete MOSFET translators; IOFF prevents leakage when PMIC is off but processor remains active. | Use Scenario: Isolating field-side 24V digital inputs from a 3.3V microcontroller in an industrial PLC module during maintenance power-down. IC Role / Device Role / Timing Role: Voltage translator with VCCA tied to PLC controller rail and VCCB tied to isolated field supply - loss of VCCA forces Y into high-Z. Use Value: Prevents backfeed from live field wiring into powered controller during hot-swap servicing; rated for 125°C ambient. |
| Automotive Body Control | Wearable Sensor Hub |
Use Scenario: Bridging a 1.2V automotive camera sensor's data-ready signal to a 3.3V ADAS domain controller in a rear-view camera module. IC Role / Device Role / Timing Role: Single-bit translator operating across –40°C to +125°C with 5kV HBM ESD rating for under-dash environments. Use Value: Replaces larger dual-supply buffers; compact X2-DFN1410-6 footprint saves space in tight camera housings. | Use Scenario: Level-shifting accelerometer interrupt output (1.8V) to a 2.8V Bluetooth SoC in a hearable device with strict power budget. IC Role / Device Role / Timing Role: Low-leakage translator enabling <5μA sleep current while maintaining fast wake-up response (<8ns tPD at 2.8V/1.8V). Use Value: Extends battery life by eliminating standby current paths; IOFF prevents sensor-side leakage when SoC is powered down. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar single-bit dual-supply translating buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC1T45DBVR | Bidirectional (A↔B), requires direction control pin; higher ICC (10μA typ); 1.65V–3.6V VCCA/VCCB range only | Suitable for bidirectional data buses (e.g., I²C pull-up translation); not usable where unidirectional isolation is mandatory | Select only if direction control is available and 0.9V operation is unnecessary |
| FXMA108MTCX | 8-bit, fixed VCCA=1.2–3.6V / VCCB=1.65–5.5V; no IOFF; higher drive (±24mA); larger TSSOP-20 package | Used in multi-signal memory interface translation (e.g., LPDDR4 VREF routing); lacks per-pin isolation capability | Choose only when multiple parallel signals require shared translation with higher drive strength |
Compared with SN74AVC1T45DBVR and FXMA108MTCX, the 74AUP1T34FZ4-7 uniquely delivers true unidirectional operation with guaranteed IOFF at VCCB = 0V and full 0.9V–3.6V flexibility in a 1.4mm × 1.0mm DFN - making it optimal for space-constrained, low-power, single-signal isolation tasks.
Availability
74AUP1T34FZ4-7 is available at Aetrix Electronics and suitable for mobile SoC interfacing, industrial I/O expansion, automotive body control, and wearable sensor hub designs requiring stable component supply across extended temperature and low-voltage operation.
Supply support for 74AUP1T34FZ4-7 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, low-power, and thermally optimized components for industrial, automotive, and consumer markets.
The 74AUP1T34FZ4-7 belongs to Diodes' AUP (Advanced Ultra-Low-Power) logic family, engineered specifically for energy-sensitive, multi-rail voltage translation in portable and harsh-environment electronics.
FAQ
What happens to the A input when VCCB = 0V?
When VCCB = 0V, the input circuitry at pin A is fully disabled: no current flows into A regardless of applied voltage (0V–3.6V), and the pin presents high impedance. This IOFF behavior prevents back-current and enables safe hot-plug operation in partial-power-down systems.
Can 74AUP1T34FZ4-7 translate from 3.3V to 1.2V?
Yes - the device supports translation from any VCCA (0.9V–3.6V) to any VCCB (0.9V–3.6V). With VCCA = 3.3V and VCCB = 1.2V, the A input switches at ~2.15V (0.65×3.3V), and Y outputs HIGH at ~1.0V (VCCB – 0.2V min), meeting standard 1.2V logic thresholds.
Is the NC pin on X2-DFN1410-6 required to be grounded?
No - the NC pin (Pin 5) is internally unconnected and has no electrical function. It may be left floating, tied to GND for mechanical reinforcement, or connected to VCCB for thermal dissipation; none affects logic operation or specifications.
Does 74AUP1T34FZ4-7 support bidirectional translation?
No - it is strictly unidirectional (A → Y). The internal architecture lacks direction control and reverse-path circuitry. For bidirectional use, consider SN74AVC1T45 or similar devices with explicit DIR pin control.
74AUP1T34FZ4-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74AUP
- Package/Case:
- 6-XFDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 6mA, 6mA
- Voltage - Supply:
- 0.9V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- X2-DFN1410-6
74AUP1T34FZ4-7 FAQ
1.How can I place an order for 74AUP1T34FZ4-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AUP1T34FZ4-7 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 74AUP1T34FZ4-7 reliable?
The price and inventory of 74AUP1T34FZ4-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AUP1T34FZ4-7 is usually 5 days.
3.What payment methods are accepted for 74AUP1T34FZ4-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AUP1T34FZ4-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AUP1T34FZ4-7?
74AUP1T34FZ4-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AUP1T34FZ4-7 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 74AUP1T34FZ4-7?
For technical support, including 74AUP1T34FZ4-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AUP1T34FZ4-7 requirements.
6.How does Aetrix verify that 74AUP1T34FZ4-7 is sourced from the original manufacturer or authorized distributors?
All 74AUP1T34FZ4-7 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 74AUP1T34FZ4-7 meets industry standards.
7.What is the process for return or replacement of 74AUP1T34FZ4-7?
All 74AUP1T34FZ4-7 units undergo pre-shipment inspection (PSI). If there is an issue with 74AUP1T34FZ4-7, 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 74AUP1T34FZ4-7 part is unused and in its original packaging.
Return procedure for 74AUP1T34FZ4-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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