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Toshiba Semiconductor and Storage 7UL3G17FK,LF(B
- Part No.:
- 7UL3G17FK,LF(B
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
7UL3G17FK,LF(B.pdf
- Description:
- L-MOS LVP IC SOT-765(US8) VCC:0.
- Quantity:
- Payment:
- Shipping:
Inventory:5,935
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Product details
Overview
7UL3G17FK,LF(B) from Toshiba Electronic Devices & Storage Corporation is a single-channel Schmitt trigger buffer IC designed for noise-immune signal conditioning in low-voltage digital systems. It operates from 0.9 V to 3.6 V, delivers ±8.0 mA output drive at 3.0 V, and achieves 3.0 ns typical propagation delay at 3.3 V with 15 pF load - enabling robust interfacing in automotive body control modules and industrial sensor signal chains.
For engineers reviewing the 7UL3G17FK,LF(B) datasheet, 7UL3G17FK,LF(B) pinout, 7UL3G17FK,LF(B) application, or 7UL3G17FK,LF(B) equivalent, key selection criteria include its 3.6 V-tolerant inputs, power-down protection outputs, wide –40°C to 125°C operating range, and US8 package compatibility with space-constrained PCB layouts.
Technical Context
The 7UL3G17FK,LF(B) implements a CMOS Schmitt-trigger input stage with hysteresis (VH = 0.15–0.93 V depending on VCC), enabling reliable switching in noisy environments. Its output stage supports rail-to-rail swing and maintains defined logic levels across the full 0.9–3.6 V supply range, with VOH ≥ VCC × 0.73 and VOL ≤ 0.5 V at 125°C.
It features 3.6 V-tolerant inputs and power-down protection - allowing safe operation when VCC = 0 V while inputs remain at up to 3.6 V. Input leakage stays below ±0.1 µA (25°C) and ±2.0 µA (125°C), ensuring minimal loading on upstream drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Single Schmitt-trigger buffer - provides noise immunity via input hysteresis for clean signal regeneration |
| Supply Voltage Range | 0.9 V to 3.6 V - supports direct interface with 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains |
| Propagation Delay | 3.0 ns (typ.) at VCC = 3.3 V, CL = 15 pF - enables high-speed signal routing in timing-critical paths |
| Output Drive | ±8.0 mA (min.) at VCC = 3.0 V - sufficient to drive multiple standard CMOS loads or short PCB traces |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial control applications |
| Input Tolerance | 3.6 V tolerant - allows mixed-voltage system interfacing without level shifters |
| Power-Down Protection | Outputs remain high-impedance and non-destructive when VCC = 0 V - prevents back-driving during power sequencing |
Pinout & Package
7UL3G17FK,LF(B) is housed in an 8-pin Ultra Small Package (US8), measuring 2.1 mm × 2.0 mm × 0.55 mm (typ.), with 0.5 mm pitch and exposed pad for thermal enhancement. The package is RoHS-compliant and halogen-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input A | Schmitt-trigger input - accepts 0–3.6 V signals with hysteresis; must be tied to VCC or GND if unused |
| 2 | GND | Ground reference - common return path for supply and signals |
| 3 | Output Y | Inverting buffered output - drives CMOS-compatible loads with rail-to-rail swing |
| 4 | VCC | Positive supply - powers internal circuitry; supports 0.9–3.6 V operation |
| 5–8 | No Connect / Exposed Pad | Thermal pad - soldered to PCB ground plane for improved heat dissipation and EMI reduction |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range (0.9–3.6 V) | Enables drop-in use across multiple voltage domains without redesigning power rails |
| 3.6 V-tolerant inputs | Eliminates need for external level-shifting when interfacing with higher-voltage controllers or sensors |
| Power-down protection | Prevents current backflow and latch-up during partial power-down sequences in multi-rail systems |
| High-speed propagation (3.0 ns typ.) | Supports >100 MHz signal edge rates in clock distribution and data strobe paths |
| –40°C to +125°C operation | Validated for engine control units, motor drivers, and industrial PLC I/O modules |
Applications
| Automotive Body Control Unit | Industrial Sensor Interface |
|---|---|
|
Use Scenario: Signal conditioning for door lock actuator feedback switches exposed to EMI and voltage transients. IC Role / Device Role / Timing Role: Schmitt buffer isolating noisy mechanical switch inputs before MCU GPIO sampling. Use Value: Hysteresis rejects contact bounce and conducted noise; 125°C rating ensures reliability near vehicle cabin electronics. |
Use Scenario: Interfacing analog-output pressure sensors to ADC inputs in factory automation equipment. IC Role / Device Role / Timing Role: Digital buffer converting sensor enable/control signals with precise edge timing. Use Value: 3.0 ns propagation delay preserves timing margins in synchronized acquisition systems; 3.6 V tolerance accommodates 3.3 V sensor logic. |
| Portable Medical Device | Smart Home Controller |
|
Use Scenario: Debouncing tactile buttons in battery-powered patient monitors with strict power budgets. IC Role / Device Role / Timing Role: Low-voltage Schmitt buffer enabling clean wake-up signal generation from mechanical inputs. Use Value: 0.9 V minimum VCC allows direct operation from partially discharged Li-ion cells; <1 µA ICC enables ultra-low standby current. |
Use Scenario: Level translation between 1.8 V microcontroller GPIOs and 3.3 V wireless module control lines. IC Role / Device Role / Timing Role: Bidirectional signal conditioner handling enable, reset, and interrupt signals. Use Value: 3.6 V-tolerant inputs accept 3.3 V logic without clamping diodes; US8 footprint saves board area in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schmitt buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G17DBVR | Wider VCC range (1.65–5.5 V); no 3.6 V input tolerance at VCC < 3.0 V; 5 ns tPD (typ.) at 3.3 V | Requires external clamping for 3.6 V inputs when powered at 1.8 V; less suitable for mixed-voltage hot-swap scenarios | Preferred where 5 V compatibility is needed and input voltage always tracks VCC |
| TC7SZ17FU,LF | Same Toshiba US8 package; identical 0.9–3.6 V range and 3.6 V input tolerance; 3.5 ns tPD (typ.) at 3.3 V | Marginally slower propagation; otherwise functionally interchangeable with 7UL3G17FK,LF(B) in most designs | Drop-in alternative when 7UL3G17FK,LF(B) is unavailable; verify timing margin in high-frequency paths |
Compared with SN74LVC1G17DBVR and TC7SZ17FU,LF, the 7UL3G17FK,LF(B) uniquely combines sub-3 ns speed at 3.3 V, guaranteed 3.6 V input tolerance down to 0.9 V supply, and power-down protection - making it optimal for automotive and industrial systems requiring robust mixed-voltage interoperability.
Availability
7UL3G17FK,LF(B) is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, portable medical devices, and smart home controllers requiring stable component supply across extended temperature ranges and mixed-voltage environments.
Supply support for 7UL3G17FK,LF(B) 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 and manufactures discrete semiconductors, logic ICs, and power devices for automotive, industrial, and consumer applications - emphasizing reliability, miniaturization, and energy efficiency.
The 7UL3G17FK,LF(B) belongs to Toshiba's UL-series ultra-low-voltage logic family, engineered specifically for noise-immune signal conditioning in space- and power-constrained embedded systems operating across wide temperature and supply ranges.
FAQ
What is the maximum input voltage the 7UL3G17FK,LF(B) can tolerate when VCC = 0 V?
The 7UL3G17FK,LF(B) supports 3.6 V-tolerant inputs even when VCC = 0 V, thanks to integrated power-down protection. This prevents damage or unintended current flow from input signals into the powered-down IC, making it suitable for hot-swap and partial-power-down system architectures.
Does the 7UL3G17FK,LF(B) require external pull-up or pull-down resistors on its input?
No - the 7UL3G17FK,LF(B) does not require external biasing resistors on its input, but unused inputs must be tied directly to VCC or GND to prevent floating states that could increase ICC or cause erratic output behavior. Its Schmitt-trigger input has defined thresholds and hysteresis, eliminating need for external RC networks.
What is the minimum supply voltage at which the 7UL3G17FK,LF(B) guarantees full output drive capability?
The 7UL3G17FK,LF(B) guarantees ±8.0 mA output drive only at VCC = 3.0 V. At lower voltages, drive strength scales down: ±4.0 mA at 2.3 V, ±3.0 mA at 1.65 V, and ±0.02 mA at 0.9 V. Designers must verify load requirements against the applicable VCC in their application.
Can the 7UL3G17FK,LF(B) be used in a 5 V system?
No - the 7UL3G17FK,LF(B) is not rated for 5 V operation. Its absolute maximum supply voltage is 4.6 V, and its recommended operating range is strictly 0.9 V to 3.6 V. For 5 V systems, consider Toshiba's TC7WZ17 or compatible 5 V-tolerant Schmitt buffers instead of the 7UL3G17FK,LF(B).
Is the thermal pad on the US8 package of the 7UL3G17FK,LF(B) electrically connected internally?
No - the exposed thermal pad on the 7UL3G17FK,LF(B) US8 package is not electrically connected to any internal node. It is intended solely for thermal conduction and mechanical stability, and should be soldered to a PCB ground plane or thermal copper area to improve heat dissipation and reduce junction temperature.
7UL3G17FK,LF(B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 3
- Number of Bits per Element:
- 1
- Input Type:
- Schmitt Trigger
- Output Type:
- -
- Current - Output High, Low:
- 8mA, 8mA
- Voltage - Supply:
- 0.9V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- US8
7UL3G17FK,LF(B FAQ
1.How can I place an order for 7UL3G17FK,LF(B through Aetrix?
Please submit a Request for Quotation (RFQ) for 7UL3G17FK,LF(B 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 7UL3G17FK,LF(B reliable?
The price and inventory of 7UL3G17FK,LF(B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 7UL3G17FK,LF(B is usually 5 days.
3.What payment methods are accepted for 7UL3G17FK,LF(B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 7UL3G17FK,LF(B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 7UL3G17FK,LF(B?
7UL3G17FK,LF(B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 7UL3G17FK,LF(B 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 7UL3G17FK,LF(B?
For technical support, including 7UL3G17FK,LF(B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 7UL3G17FK,LF(B requirements.
6.How does Aetrix verify that 7UL3G17FK,LF(B is sourced from the original manufacturer or authorized distributors?
All 7UL3G17FK,LF(B 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 7UL3G17FK,LF(B meets industry standards.
7.What is the process for return or replacement of 7UL3G17FK,LF(B?
All 7UL3G17FK,LF(B units undergo pre-shipment inspection (PSI). If there is an issue with 7UL3G17FK,LF(B, 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 7UL3G17FK,LF(B part is unused and in its original packaging.
Return procedure for 7UL3G17FK,LF(B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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