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Toshiba Semiconductor and Storage TC7WT240FUTE12LF
- Part No.:
- TC7WT240FUTE12LF
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 8-TSSOP, 8-MSOP (0.110", 2.80mm Width)
- Datasheet:
-
TC7WT240FUTE12LF.pdf
- Description:
- IC BUFFER INVERT 5.5V SM8
- Quantity:
- Payment:
- Shipping:
Inventory:3,403
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Product details
Overview
TC7WT240FUTE12LF from Toshiba is a dual inverting 3-state bus buffer IC with TTL-compatible inputs, 13 ns typical propagation delay at 5 V, ±6 mA output drive, and operation across −40°C to +85°C - used in bidirectional data bus isolation for industrial control backplanes.
For engineers reviewing the TC7WT240FUTE12LF datasheet, TC7WT240FUTE12LF pinout, TC7WT240FUTE12LF application, or TC7WT240FUTE12LF equivalent, key selection criteria include inverting logic behavior, active-low 3-state enables, symmetrical drive strength, high noise immunity (VIL ≤ 0.8 V, VIH ≥ 2.0 V), and SM8 package compatibility with space-constrained PCB layouts.
Technical Context
The TC7WT240FUTE12LF implements two independent inverting buffers, each with separate active-low output enable (G1, G2) controlling high-impedance states. Its silicon gate CMOS process delivers LSTTL-speed performance while maintaining μA-level quiescent current.
Input thresholds are TTL-compatible (VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V), and outputs drive up to 15 LSTTL loads with matched |IOH|/IOL ≥ 6 mA. All inputs include ESD protection diodes rated for ±20 mA transient current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Dual inverting 3-state buffer with independent active-low enables (G1, G2) |
| Propagation Delay | 13 ns typical (tpHL/tpLH, CL = 50 pF, VCC = 5.5 V) - ensures timing compliance in 20 MHz bus systems |
| Output Drive | ±6 mA min (IOH/IOL, VOH ≥ 4.13 V, VOL ≤ 0.33 V at VCC = 4.5 V) - supports direct interface to LSTTL loads |
| Supply Range | 4.5 V to 5.5 V - compatible with regulated 5 V rails; absolute max 7 V |
| Operating Temp | −40°C to +85°C - qualified for industrial ambient environments |
| Quiescent ICC | 2 μA max at 25°C - enables low-power standby in bus-hold architectures |
| Input Noise Margin | VIL ≤ 0.8 V / VIH ≥ 2.0 V - provides 1.2 V DC noise immunity with 5 V TTL sources |
Pinout & Package
Package: SM8 (Small Outline 8-pin, 2.9 mm × 2.8 mm, 0.65 mm pitch, 0.02 g typical weight), lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A1 input | Inverting data input for first buffer channel |
| 2 | G1 enable | Active-low output enable for Y1; pulls Y1 to high-Z when high |
| 3 | Y1 output | Inverted buffered output of A1; drives bus or downstream logic |
| 4 | GND | Ground reference for all I/O and internal circuitry |
| 5 | A2 input | Inverting data input for second buffer channel |
| 6 | G2 enable | Active-low output enable for Y2; pulls Y2 to high-Z when high |
| 7 | Y2 output | Inverted buffered output of A2; independent of Y1 channel |
| 8 | VCC | Positive supply rail (4.5–5.5 V); powers both buffer channels |
Key Features
| Feature | Design Value |
|---|---|
| High-speed CMOS architecture | 13 ns typical tpd matches LSTTL timing without TTL power penalty |
| TTL-input voltage compatibility | VIH ≥ 2.0 V / VIL ≤ 0.8 V enables direct connection to legacy 5 V TTL outputs |
| Symmetrical output drive | |IOH| = IOL ≥ 6 mA ensures balanced rise/fall times and signal integrity on shared buses |
| Integrated input protection | ESD diodes rated ±20 mA per input prevent latch-up during hot-plug or transient events |
| Low static power consumption | ICC ≤ 2 μA at 25°C allows use in always-on bus isolation without thermal impact |
Applications
| Industrial Backplane Bus Isolation | Legacy System Level-Shifting Interface |
|---|---|
Use Scenario: Bidirectional data transfer between microcontroller and peripheral modules on a 5 V industrial backplane with shared address/data lines. IC Role / Device Role / Timing Role: Inverting 3-state buffer isolating bus segments; enables/disables data flow via G1/G2 under CPU control. Use Value: Prevents bus contention during multi-master arbitration; 13 ns delay maintains timing margin in 20 MHz synchronous transfers. | Use Scenario: Interfacing modern low-power MCU GPIOs to legacy 5 V TTL peripherals (e.g., UART transceivers, parallel port controllers). IC Role / Device Role / Timing Role: Level-shifting inverter with 3-state capability, translating 3.3 V logic levels to 5 V TTL-compatible signals. Use Value: Eliminates need for discrete level-shifters; TTL-input thresholds accept 3.3 V high as valid VIH, reducing BOM count. |
| Test Equipment Signal Gating | Programmable Logic I/O Expansion |
Use Scenario: Controlled routing of test signals in automated test equipment where signal integrity and deterministic disable timing are critical. IC Role / Device Role / Timing Role: Precision gating element with fast enable/disable (tpZH/tpLZ ≤ 34 ns) and high-Z off-state leakage < ±5 μA. Use Value: Enables clean signal blanking without crosstalk; low IOZ prevents loading of sensitive DUT nodes during measurement phases. | Use Scenario: Expanding I/O count of CPLD/FPGA designs requiring inverted, tri-statable outputs for memory-mapped peripheral control. IC Role / Device Role / Timing Role: Off-chip inverting buffer with independent enables, synchronized to FPGA control signals for address strobe or chip select generation. Use Value: Provides robust 6 mA drive into capacitive loads; matched IOH/IOL ensures consistent setup/hold margins for external devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual inverting bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G04DCUR | Non-inverting dual buffer; no 3-state; 1.65–5.5 V supply; 3.7 ns tpd at 3.3 V | Lacks output enable and inversion - requires external logic for bus control | Select only if non-inverting logic and absence of 3-state is acceptable; not drop-in |
| 74LCX240MTCX | Inverting dual 3-state buffer; 2.0–3.6 V supply only; 5.5 ns tpd at 3.3 V; different pinout (TSSOP-20) | Not 5 V tolerant; incompatible supply range; larger footprint | Use only in 3.3 V systems with TSSOP-20 layout; not pin-compatible with TC7WT240FUTE12LF |
Compared with SN74LVC2G04DCUR and 74LCX240MTCX, the TC7WT240FUTE12LF uniquely combines 5 V operation, inverting logic, independent 3-state enables, and SM8 footprint - making it irreplaceable in space-constrained industrial 5 V bus isolation where timing and voltage compatibility are non-negotiable.
Availability
TC7WT240FUTE12LF is available at Aetrix Electronics and suitable for industrial backplane isolation, legacy system interfacing, automated test equipment signal gating, and programmable logic I/O expansion requiring stable component supply and long-term manufacturability.
Supply support for TC7WT240FUTE12LF 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 high-reliability semiconductor components for industrial, automotive, and consumer applications, with over 50 years of analog and logic IC heritage.
The TC7WT240FUTE12LF belongs to Toshiba's TC7WT series of ultra-high-speed CMOS bus interface ICs, engineered specifically for low-power, 5 V-compatible bidirectional data path control in space- and timing-critical embedded systems.
FAQ
What logic function does the TC7WT240FUTE12LF implement?
The TC7WT240FUTE12LF implements two independent inverting 3-state buffers. Each channel accepts one input (A1 or A2), inverts it, and drives the corresponding output (Y1 or Y2) when its dedicated active-low enable (G1 or G2) is asserted low. When the enable is high, the output enters high-impedance state. This behavior is confirmed in the truth table and logic diagram of the official Toshiba datasheet.
Is the TC7WT240FUTE12LF compatible with 3.3 V input signals?
Yes - the TC7WT240FUTE12LF accepts 3.3 V logic-high inputs reliably. Its VIH minimum is 2.0 V (at VCC = 4.5–5.5 V), so a 3.3 V signal exceeds this threshold. However, the device itself must be powered at 4.5–5.5 V; it is not designed for 3.3 V VCC operation. This makes the TC7WT240FUTE12LF suitable for interfacing 3.3 V controllers to 5 V buses.
What is the maximum capacitive load the TC7WT240FUTE12LF can drive while maintaining specified timing?
The TC7WT240FUTE12LF AC specifications are characterized at CL = 50 pF and CL = 150 pF. At 50 pF and VCC = 5.5 V, tpLH/tpHL is 13 ns (typ). At 150 pF, delay increases to 18 ns (typ). Therefore, the device maintains guaranteed timing up to 150 pF - sufficient for most PCB traces and multiple LSTTL inputs. Exceeding this may degrade edge rates and increase propagation uncertainty.
Does the TC7WT240FUTE12LF have built-in ESD protection?
Yes - the TC7WT240FUTE12LF includes integrated input protection circuits against electrostatic discharge and transient overvoltage. The Absolute Maximum Ratings specify ±20 mA input diode current (IIK), confirming robust on-chip clamping diodes. This eliminates the need for external TVS devices in typical industrial environments, provided layout best practices (e.g., short traces, ground plane) are followed.
Can the TC7WT240FUTE12LF be used in automotive applications?
No - the TC7WT240FUTE12LF is specified for −40°C to +85°C operation and is not qualified to AEC-Q100 standards. Toshiba explicitly restricts use in automotive systems per its "Restrictions on Product Use" notice. For automotive applications, designers must select components with formal AEC-Q100 Grade 2 or 3 qualification and extended temperature support up to +125°C - the TC7WT240FUTE12LF does not meet those requirements.
TC7WT240FUTE12LF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TC7WU
- Package/Case:
- 8-TSSOP, 8-MSOP (0.110", 2.80mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Buffer, Inverting
- Number of Elements:
- 2
- Number of Bits per Element:
- 1
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 6mA, 6mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SSOP
TC7WT240FUTE12LF FAQ
1.How can I place an order for TC7WT240FUTE12LF through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7WT240FUTE12LF 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 TC7WT240FUTE12LF reliable?
The price and inventory of TC7WT240FUTE12LF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC7WT240FUTE12LF is usually 5 days.
3.What payment methods are accepted for TC7WT240FUTE12LF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7WT240FUTE12LF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7WT240FUTE12LF?
TC7WT240FUTE12LF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7WT240FUTE12LF 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 TC7WT240FUTE12LF?
For technical support, including TC7WT240FUTE12LF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7WT240FUTE12LF requirements.
6.How does Aetrix verify that TC7WT240FUTE12LF is sourced from the original manufacturer or authorized distributors?
All TC7WT240FUTE12LF 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 TC7WT240FUTE12LF meets industry standards.
7.What is the process for return or replacement of TC7WT240FUTE12LF?
All TC7WT240FUTE12LF units undergo pre-shipment inspection (PSI). If there is an issue with TC7WT240FUTE12LF, 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 TC7WT240FUTE12LF part is unused and in its original packaging.
Return procedure for TC7WT240FUTE12LF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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