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Toshiba Semiconductor and Storage TC7W125FU,LF
- Part No.:
- TC7W125FU,LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 8-TSSOP, 8-MSOP (0.110", 2.80mm Width)
- Datasheet:
-
TC7W125FU,LF.pdf
- Description:
- IC BUFFER NON-INVERT 6V SM8
- Quantity:
- Payment:
- Shipping:
Inventory:76,181
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Product details
Overview
TC7W125FU,LF from Toshiba is a dual 3-state bus buffer IC fabricated in silicon gate C2MOS technology, operating from 2 V to 6 V with 10 ns typical propagation delay and 6 mA output drive per channel. It features symmetrical output impedance, high noise immunity (28% VCC), and low quiescent current (2 µA max). Used in bidirectional data bus isolation for microcontroller peripheral interfaces.
For engineers reviewing the TC7W125FU,LF datasheet, TC7W125FU,LF pinout, TC7W125FU,LF application, or TC7W125FU,LF equivalent, key selection criteria include 3-state control timing (tpZH/tpZL ≤20 ns at 6 V), wide supply range compatibility, and LSTTL-load drive capability in compact US8 package.
Technical Context
The TC7W125FU,LF implements two independent non-inverting buffers, each with active-low 3-state enable (G) controlling output high-impedance state. Input logic thresholds are ratio-based (VIH ≥0.7×VCC, VIL ≤0.3×VCC), ensuring robust operation across the full 2–6 V supply range.
Its C2MOS architecture delivers LSTTL-speed performance while maintaining CMOS-level static power consumption. Output drive strength (6 mA min IOH/IOL) and balanced propagation delays (tpLH ≈ tpHL) support clean signal integrity in mixed-voltage bus systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.0–6.0 V - supports direct interface with 3.3 V and 5 V logic domains without level shifters |
| Propagation delay | 10 ns (typ.) at VCC = 5 V - enables reliable operation up to ~30 MHz bus toggle rates |
| Output drive | ±6 mA (min) - drives 15 LSTTL loads, sufficient for legacy parallel bus termination |
| Quiescent current | 2 µA (max) at Ta = 25°C - enables ultra-low standby power in battery-backed systems |
| Noise immunity | VNIH/VNIL = 28% VCC (min) - provides 1.4 V noise margin at 5 V supply |
| Operating temperature | −40°C to +85°C - qualified for industrial ambient environments |
| 3-state enable time | tpZH/tpZL ≤20 ns (max) at VCC = 6 V - ensures fast bus arbitration in multiplexed data paths |
Pinout & Package
TC7W125FU,LF is housed in an 8-pin US8 (Ultra Small Outline) package (2.8 mm × 2.45 mm, 0.65 mm pitch), surface-mount, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (G1) | Channel 1 enable input | Active-low control: G1 = L enables Y1; G1 = H places Y1 in high-Z |
| 2 (A1) | Channel 1 data input | Non-inverting input driving Y1; accepts 0–VCC logic levels |
| 3 (Y1) | Channel 1 output | 3-state buffered output; high-Z when G1 = H or during disable transitions |
| 4 (GND) | Ground reference | Common return path for all I/O and supply currents |
| 5 (Y2) | Channel 2 output | 3-state buffered output; high-Z when G2 = H |
| 6 (A2) | Channel 2 data input | Non-inverting input driving Y2; electrically isolated from A1/Y1 |
| 7 (G2) | Channel 2 enable input | Active-low control: G2 = L enables Y2; independent of G1 |
| 8 (VCC) | Positive supply | Single supply rail supporting 2–6 V operation; decoupling required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 3-state buffers | Enables simultaneous or staggered control of two data paths without crosstalk |
| Wide VCC range (2–6 V) | Eliminates need for external level translators between 2.5 V, 3.3 V, and 5 V subsystems |
| Symmetrical output drive (|IOH| = IOL) | Ensures matched rise/fall times and reduced signal distortion on shared buses |
| High noise immunity (28% VCC) | Reduces susceptibility to ground bounce and EMI in dense PCB layouts |
| Low input capacitance (5 pF typ.) | Minimizes loading on upstream drivers and preserves signal edge rate |
Applications
| Microcontroller Peripheral Bus Isolation | Legacy Parallel Interface Buffering |
|---|---|
Use Scenario: Isolating GPIO expansion ports on ARM Cortex-M microcontrollers from shared address/data buses. IC Role / Device Role / Timing Role: Dual 3-state buffer providing direction-controlled data path gating with sub-20 ns enable/disable timing. Use Value: Prevents bus contention during peripheral access while maintaining TTL-compatible drive strength and 5 V tolerance. | Use Scenario: Buffering parallel signals between FPGA I/O banks and legacy LCD controllers or printer interfaces. IC Role / Device Role / Timing Role: Level-shifting and fan-out buffer enabling 3.3 V FPGA to drive 5 V LSTTL loads without external transceivers. Use Value: Delivers 15 LSTTL load drive at 5 V supply with <10 ns propagation delay, preserving setup/hold margins. |
| Industrial Sensor Data Multiplexing | Test Equipment Signal Routing |
Use Scenario: Time-division multiplexing of analog sensor ADC outputs onto a common digital bus in PLC modules. IC Role / Device Role / Timing Role: Channel-selectable bus buffer enabling sequential sampling without signal leakage between sensors. Use Value: High off-state isolation (>1 MΩ effective) and low ICC (2 µA) reduce cross-talk and standby power in multi-sensor nodes. | Use Scenario: Reconfigurable signal routing in automated test equipment (ATE) for DUT interface adaptation. IC Role / Device Role / Timing Role: Fast-enable 3-state switch allowing dynamic reassignment of measurement channels under MCU control. Use Value: 12 ns max tpZL/tpZH at 6 V supports <50 MHz switching of routed signals with deterministic timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC2G125DP,125 | Lower VCC range (1.65–5.5 V); faster tpd (3.7 ns typ. at 3.3 V); higher ICC (10 µA max) | Better suited for 1.8 V/3.3 V-only systems; not rated for 5.5–6.0 V operation | Select when operating strictly below 5.5 V and requiring sub-5 ns delay; verify 3.3 V VIH/VIL compatibility |
| SN74LV244APWR | Octal (not dual); higher drive (16 mA); wider temp range (−40°C to +125°C); larger TSSOP-20 package | Used where multiple parallel lines require coordinated 3-state control, not discrete dual-channel isolation | Choose for 8-bit bus buffering with automotive-grade temp rating; avoid for space-constrained dual-line use |
Compared with 74LVC2G125DP,125 and SN74LV244APWR, the TC7W125FU,LF uniquely balances 2–6 V operation, ultra-low ICC, and compact US8 footprint-making it optimal for industrial designs needing single-supply flexibility and minimal board area.
Availability
TC7W125FU,LF is available at Aetrix Electronics and suitable for industrial automation, test instrumentation, and embedded microcontroller peripheral interfacing requiring stable component supply and long-term lifecycle support.
Supply support for TC7W125FU,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 and manufactures discrete semiconductors, logic ICs, and power devices for industrial, consumer, and automotive applications.
The TC7W125FU,LF belongs to Toshiba's legacy C2MOS logic family, engineered for high-speed, low-power bus interface applications in mixed-voltage embedded systems.
FAQ
What is the maximum supply voltage rating for TC7W125FU,LF?
The absolute maximum supply voltage for TC7W125FU,LF is 7 V, but the recommended operating range is 2.0 V to 6.0 V. Operation above 6.0 V risks permanent damage even if brief, and electrical characteristics are only guaranteed within the 2–6 V operating range specified in the datasheet. Always observe derating guidelines per Toshiba's reliability handbook when designing for long-term stability.
Does TC7W125FU,LF support 3.3 V logic levels with 5 V VCC?
Yes, TC7W125FU,LF supports 3.3 V input logic levels when powered at 5 V VCC: its VIH(min) is 3.15 V and VIL(max) is 1.35 V at VCC = 4.5 V, comfortably accommodating standard 3.3 V CMOS outputs. Inputs tolerate 0–VCC, so 3.3 V signals are fully compatible without clamping or level shifting.
What is the thermal resistance (θJA) of the TC7W125FU,LF US8 package?
The TC7W125FU,LF US8 package has a typical junction-to-ambient thermal resistance (θJA) of 290°C/W under standard JEDEC JESD51-7 conditions (single-layer copper, 1 in² pad). This value assumes no internal thermal vias or enhanced PCB copper; actual θJA improves significantly with proper thermal land design and PCB copper area.
Can TC7W125FU,LF be used in bidirectional data buses?
No - TC7W125FU,LF is a unidirectional non-inverting buffer with separate input (A) and output (Y) pins per channel. It does not implement bus transceiver functionality. For bidirectional operation, a dedicated transceiver like the TC7W245FU would be required; TC7W125FU,LF must be paired with complementary direction-control logic for true bidirectional use.
Is TC7W125FU,LF RoHS compliant and lead-free?
Yes, TC7W125FU,LF is RoHS compliant and lead-free, as confirmed by Toshiba's official product documentation and marking (",LF" suffix denotes lead-free plating). The US8 package uses matte tin terminal finish, and the device meets EU RoHS Directive 2011/65/EU requirements including exemption 7a for lead in high-melting-temperature solder alloys.
TC7W125FU,LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TC7W
- Package/Case:
- 8-TSSOP, 8-MSOP (0.110", 2.80mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 7.8mA, 7.8mA
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SSOP
TC7W125FU,LF FAQ
1.How can I place an order for TC7W125FU,LF through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7W125FU,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 TC7W125FU,LF reliable?
The price and inventory of TC7W125FU,LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC7W125FU,LF is usually 5 days.
3.What payment methods are accepted for TC7W125FU,LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7W125FU,LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7W125FU,LF?
TC7W125FU,LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7W125FU,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 TC7W125FU,LF?
For technical support, including TC7W125FU,LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7W125FU,LF requirements.
6.How does Aetrix verify that TC7W125FU,LF is sourced from the original manufacturer or authorized distributors?
All TC7W125FU,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 TC7W125FU,LF meets industry standards.
7.What is the process for return or replacement of TC7W125FU,LF?
All TC7W125FU,LF units undergo pre-shipment inspection (PSI). If there is an issue with TC7W125FU,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 TC7W125FU,LF part is unused and in its original packaging.
Return procedure for TC7W125FU,LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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