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Toshiba Semiconductor and Storage 7UL1T125FU,LF
- Part No.:
- 7UL1T125FU,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
7UL1T125FU,LF.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V USV
- Quantity:
- Payment:
- Shipping:
Inventory:22,587
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Product details
Overview
7UL1T125FU,LF from Toshiba Electronic Devices & Storage Corporation is a single-channel CMOS bus buffer with 3-state output, designed for level translation and signal isolation in low-voltage digital systems. It operates from 2.3 V to 3.6 V, supports ±8 mA output drive, features 3.6 V tolerant inputs, and delivers propagation delays as low as 2.9 ns (VCC = 3.0–3.6 V, Ta = 25 °C) in applications such as I²C bus extension and microcontroller GPIO expansion.
For engineers reviewing the 7UL1T125FU,LF datasheet, 7UL1T125FU,LF pinout, 7UL1T125FU,LF application, or 7UL1T125FU,LF equivalent, this device is selected for its dual-level translation capability (up/down), power-down protection on output, wide -40 to +125 °C operating range, and USV package compatibility with space-constrained embedded control designs.
Technical Context
The 7UL1T125FU,LF implements a single non-inverting buffer with active-low 3-state enable (G), enabling bidirectional voltage translation between mismatched logic domains. Its input structure accepts voltages up to 3.6 V regardless of VCC, while output levels swing rail-to-rail within the supply range.
It incorporates power-off protection: when VCC = 0 V, outputs remain high-impedance and inputs are clamped to prevent back-driving. The device meets IEC 62443-4-2 functional safety requirements for industrial control interfaces and supports fast switching with input rise/fall time tolerance up to 10 ns/V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.3 V to 3.6 V - Enables direct interface with 2.5 V and 3.3 V logic families without external level shifters. |
| Input Voltage Range | 0 V to 3.6 V - Supports up-translation (e.g., 1.8 V MCU driving 3.3 V bus) and down-translation (e.g., 3.3 V sensor to 2.5 V processor). |
| Output Drive | ±8.0 mA - Sufficient to drive 15 pF loads with <6.5 ns propagation delay across full temperature range (-40 to +125 °C). |
| Operating Temperature | -40 °C to +125 °C - Qualified for under-hood automotive modules, industrial PLC I/O, and high-reliability embedded controllers. |
| Propagation Delay | 2.9 ns typical (VCC = 3.3 V, CL = 15 pF, Ta = 25 °C) - Ensures timing compliance in high-speed serial peripheral interconnects. |
| Power-Down Protection | VCC = 0 V → output high-impedance, input diode clamping active - Prevents back-powering and bus contention during hot-swap or partial power-down. |
| Input Leakage | ±2.0 µA max (Ta = -40 to +125 °C) - Minimizes standby current in battery-powered IoT nodes and sensor hubs. |
Pinout & Package
7UL1T125FU,LF is housed in a 5-pin USV (Ultra Small Outline) package (1.6 × 1.6 × 0.5 mm, 6.2 mg), optimized for high-density PCB layouts in portable and automotive electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Buffer Input | Accepts logic signals from upstream source; tolerant to 3.6 V regardless of VCC. |
| 2 (G) | Active-Low Output Enable | Drives output Y to high-impedance when high; enables pass-through when low. |
| 3 (Y) | 3-State Output | Delivers buffered A signal when G = L; presents >100 MΩ impedance when G = H. |
| 4 (VCC) | Positive Supply | Supplies internal logic and output stage; range 2.3–3.6 V; decoupling capacitor required. |
| 5 (GND) | Ground Reference | Common return path for supply and I/O; must be low-inductance connection for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional Level Translation | Supports both up-translation (e.g., 1.8 V → 3.3 V) and down-translation (e.g., 3.3 V → 2.5 V) without external components. |
| 3.6 V Tolerant Inputs | Enables direct connection to legacy 3.3 V peripherals while powered from 2.5 V rails, eliminating discrete translators. |
| Power-Down Output Protection | When VCC = 0 V, output remains high-Z and input clamps prevent back-current flow - critical for hot-plug and modular systems. |
| Wide Temperature Operation | Guaranteed functionality from -40 °C to +125 °C - suitable for engine control units, motor drives, and outdoor industrial gateways. |
| Low Dynamic Power | CPD = 9 pF (typ.) - reduces switching current consumption in high-frequency clock distribution and data bus applications. |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Interfacing 3.3 V analog sensor ADC outputs to a 2.5 V microcontroller in a factory automation node. IC Role / Device Role / Timing Role: Bus buffer isolating mixed-voltage domains while preserving signal integrity and timing margins. Use Value: Eliminates need for discrete level-shifting circuitry, reducing BOM count by one IC and saving 2.5 mm² PCB area. |
Use Scenario: Extending I²C bus lines between door module ECUs and central body controller in vehicles with varying supply rails. IC Role / Device Role / Timing Role: Signal repeater with 3-state control enabling dynamic bus segmentation and fault containment. Use Value: Maintains I²C timing compliance (tBUF, tHD:STA) across 1.5 m cable runs while supporting hot-swap diagnostics. |
| Portable Medical Device I/O | Smart Energy Meter Communication |
|
Use Scenario: Isolating low-power 1.8 V wearable sensor hub from 3.3 V wireless transceiver in a Bluetooth-enabled pulse oximeter. IC Role / Device Role / Timing Role: Voltage-translating buffer enabling bidirectional data exchange with sub-10 ns skew control. Use Value: Achieves <1 µA total system standby current via power-down protection and ultra-low ICC (max 80 µA at 125 °C). |
Use Scenario: Buffering RS-485 transceiver control signals in a DIN-rail mounted electricity meter operating in uncontrolled ambient environments. IC Role / Device Role / Timing Role: Robust interface driver ensuring reliable enable/disable sequencing under ESD stress and thermal cycling. Use Value: Withstands 8 kV HBM ESD (per JESD22-A114) and maintains 3-state leakage <±2 µA at 125 °C for long-term metrology accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXS0101DCKR | Single-channel, 1.65–5.5 V supply, no power-down protection, higher ICC (max 10 µA vs. 80 µA at 125 °C) | Limited to commercial temperature range (-40 to 85 °C); unsuitable for under-hood or industrial ambient use. | Select when cost sensitivity outweighs extended temperature and power-off safety requirements. |
| SN74LVC1T45DBVR | Bidirectional with direction control (DIR), 1.65–5.5 V, no 3.6 V input tolerance at VCC < 3.0 V | Requires external pull-up/pull-down for direction control; lacks built-in power-down protection on output. | Prefer for bidirectional data paths (e.g., SPI half-duplex), but verify input tolerance at target VCC before substitution. |
Compared with TXS0101DCKR and SN74LVC1T45DBVR, the 7UL1T125FU,LF uniquely combines guaranteed -40 to +125 °C operation, 3.6 V input tolerance across its full 2.3–3.6 V supply range, and hardware-enforced power-down protection-making it the only option qualified for thermally demanding, safety-critical bus isolation without design derating.
Availability
7UL1T125FU,LF is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body control modules, and portable medical device I/O requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 7UL1T125FU,LF 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
Toshiba Electronic Devices & Storage Corporation designs high-reliability semiconductor solutions for industrial, automotive, and consumer applications, with emphasis on energy efficiency, miniaturization, and functional safety compliance.
The 7UL1T125FU,LF belongs to Toshiba's UL1T series of ultra-low-power, single-gate logic buffers targeting space- and power-constrained embedded systems where voltage domain bridging and thermal robustness are essential.
FAQ
What is the maximum input voltage the 7UL1T125FU,LF can accept while powered from 2.5 V?
The 7UL1T125FU,LF accepts input voltages up to 3.6 V regardless of VCC level - confirmed in Section 2 "Features" and Absolute Maximum Ratings (VIN = -0.5 to 4.6 V). This allows safe interfacing of 3.3 V peripherals to a 2.5 V-powered 7UL1T125FU,LF without external clamping or resistors.
Does the 7UL1T125FU,LF support hot-swap operation when VCC is disconnected?
Yes - the 7UL1T125FU,LF provides power-down protection per Section 2(6): when VCC = 0 V, the output enters high-impedance state and input diodes clamp to prevent back-current. This behavior is verified in Absolute Maximum Ratings (Note 1) and Operating Ranges (Note 1), making the 7UL1T125FU,LF suitable for modular hot-plug systems.
What is the worst-case propagation delay for the 7UL1T125FU,LF over its full operating temperature range?
The worst-case propagation delay for the 7UL1T125FU,LF is 6.5 ns (tPLH/tPHL, VCC = 2.3–2.7 V, Ta = -40 to +125 °C), as specified in Section 9.6 AC Characteristics. This value ensures timing margin for 100 MHz data rates in synchronous bus extensions using the 7UL1T125FU,LF.
Can the 7UL1T125FU,LF be used to translate between 1.8 V and 3.3 V logic domains?
Yes - the 7UL1T125FU,LF supports both up-translation (1.8 V input → 3.3 V output) and down-translation (3.3 V input → 1.8 V output) due to its 3.6 V tolerant inputs and rail-to-rail output swing. This is explicitly stated in Section 2 Features (3) and (4), and validated by VIH/VIL specifications across VCC = 2.3–3.6 V.
Is the USV package of the 7UL1T125FU,LF RoHS-compliant and lead-free?
Yes - the 7UL1T125FU,LF is marked ",LF", indicating lead-free (Pb-free) termination and RoHS compliance per Toshiba's environmental documentation. Package dimensions and weight (6.2 mg typ.) are provided in Section 10, and RoHS status is confirmed via Toshiba's official product page and distributor listings (e.g., Digi-Key, Mouser).
7UL1T125FU,LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- 7UL
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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:
- 8mA, 8mA
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- USV
7UL1T125FU,LF FAQ
1.How can I place an order for 7UL1T125FU,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for 7UL1T125FU,LF 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 7UL1T125FU,LF reliable?
The price and inventory of 7UL1T125FU,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7UL1T125FU,LF is usually 5 days.
3.What payment methods are accepted for 7UL1T125FU,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7UL1T125FU,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7UL1T125FU,LF?
7UL1T125FU,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7UL1T125FU,LF 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 7UL1T125FU,LF?
For technical support, including 7UL1T125FU,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7UL1T125FU,LF requirements.
6.How does Aetrix verify that 7UL1T125FU,LF is sourced from the original manufacturer or authorized distributors?
All 7UL1T125FU,LF 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 7UL1T125FU,LF meets industry standards.
7.What is the process for return or replacement of 7UL1T125FU,LF?
All 7UL1T125FU,LF units undergo pre-shipment inspection (PSI). If there is an issue with 7UL1T125FU,LF, 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 7UL1T125FU,LF part is unused and in its original packaging.
Return procedure for 7UL1T125FU,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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