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Toshiba Semiconductor and Storage TC7SZ126F,LJ(CT
- Part No.:
- TC7SZ126F,LJ(CT
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TC7SZ126F,LJ(CT.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SMV
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TC7SZ126F,LJ(CT) from Toshiba Electronic Devices & Storage Corporation is a single-channel 3-state bus buffer IC designed for level-shifting and signal isolation in low-voltage digital systems. It supports 1.65–5.5 V supply operation, delivers ±24 mA output drive at 3.0 V, achieves 2.6 ns typical propagation delay at 5.0 V/50 pF, and features 5.5 V-tolerant inputs - enabling use in mixed-voltage I²C, SPI, and GPIO expansion interfaces.
For engineers reviewing the TC7SZ126F,LJ(CT) datasheet, TC7SZ126F,LJ(CT) pinout, TC7SZ126F,LJ(CT) application, or TC7SZ126F,LJ(CT) equivalent, key selection criteria include its AEC-Q100 qualified automotive grade (–40 to 85 °C), 3-state output control timing, input voltage tolerance, and SOT-25 package compatibility with space-constrained PCB layouts.
Technical Context
This device implements a non-inverting 3-state buffer with active-high output enable (G). Its logic function is defined by truth table: when G = H, Y = A; when G = L, Y = Z (high-impedance). The design integrates power-down protection that disables output leakage when VCC = 0 V.
It operates across three voltage domains: 1.65–1.95 V (1.8 V nominal), 2.3–5.5 V (2.5/3.3/5.0 V nominal), and maintains consistent VIH/VIL thresholds (VCC × 0.88 / VCC × 0.12) and output drive capability (±24 mA min at 3.0 V) across all supported rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Non-inverting 3-state bus buffer with active-high output enable |
| Supply Voltage Range | 1.65 V to 5.5 V - enables direct interface between 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains |
| Propagation Delay | 2.6 ns (typ.) at VCC = 5.0 V, CL = 50 pF - supports >300 MHz data rates in short-line applications |
| Output Drive | ±24 mA (min) at VCC = 3.0 V - drives standard TTL loads and multiple CMOS inputs without external buffering |
| Input Tolerance | 5.5 V tolerant - allows safe connection to higher-voltage buses while powered from lower VCC |
| Operating Temperature | –40 °C to +85 °C - qualified per AEC-Q100 Rev. H for automotive body electronics and industrial control |
| Quiescent Current | 0.22 µA (typ.) at VCC = 4.5 V - enables ultra-low-power standby in battery-backed systems |
Pinout & Package
TC7SZ126F,LJ(CT) is housed in a JEDEC-standard SOT-25 (SMV) 5-pin surface-mount package measuring 2.9 mm × 1.6 mm × 1.1 mm (typ.), with 14 mg mass and lead-free, RoHS-compliant construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data Input | CMOS-compatible input accepting 0–5.5 V signals regardless of VCC; no level translation required |
| 2 (G) | Output Enable (Active High) | Drives output Y to high-impedance state when logic low; enables bus sharing and hot-swap isolation |
| 3 (GND) | Ground Reference | Primary return path for all internal circuitry and output current; must be low-impedance |
| 4 (Y) | 3-State Output | Non-inverted buffered output capable of sourcing/sinking ±24 mA; 5.5 V power-down protected |
| 5 (VCC) | Supply Voltage | Single positive supply input (1.65–5.5 V); powers internal logic and output stage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualification | Complies with Rev. H stress testing for automotive-grade reliability in under-hood and cabin modules |
| Wide VCC range | Operates from 1.65 V to 5.5 V - eliminates need for separate level shifters in multi-rail systems |
| 5.5 V-tolerant inputs | Accepts input signals up to 5.5 V even when VCC = 1.8 V - simplifies interconnection with legacy 5 V peripherals |
| Power-down protection | Output remains high-impedance and leakage-limited when VCC = 0 V - prevents back-driving during power sequencing |
| High-speed performance | 2.6 ns typical tPD at 5 V enables clean edge integrity on traces up to ~5 cm in FR-4 PCBs |
Applications
| Industrial Sensor Interface | I²C Bus Expansion |
|---|---|
Use Scenario: Isolating and buffering analog-to-digital converter (ADC) status lines in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: 3-state buffer isolating ADC busy/status signals from shared microcontroller GPIO bus. Use Value: Prevents signal contention during concurrent ADC conversions and MCU reads; ±24 mA drive ensures robust noise immunity over 10 cm PCB traces. | Use Scenario: Adding extra I²C slave address slots to an embedded system using a single master controller. IC Role / Device Role / Timing Role: Level-translating and enabling/disabling I²C SDA lines between 3.3 V MCU and 5 V sensor nodes. Use Value: 5.5 V-tolerant inputs allow direct connection to 5 V pull-ups; 2.6 ns tPD preserves I²C timing margins up to 400 kHz standard mode. |
| Automotive Body Control | Low-Power GPIO Expander |
Use Scenario: Driving LED indicators and relay drivers from a CAN-connected body control module operating at 3.3 V. IC Role / Device Role / Timing Role: Buffering microcontroller GPIO outputs to higher-current loads while maintaining AEC-Q100 compliance. Use Value: –40 °C to +85 °C rating matches automotive cabin temperature requirements; ±24 mA output directly drives 20 mA LEDs without external transistors. | Use Scenario: Extending GPIO count on a battery-powered IoT node where standby current must remain below 1 µA. IC Role / Device Role / Timing Role: Providing isolated, controllable signal paths for wake-up interrupt lines and sensor enable signals. Use Value: 0.22 µA typical ICC at 4.5 V enables >10-year battery life in deep-sleep modes; 3-state control minimizes leakage during sleep. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G125DBVR | Same SOT-25 package, identical pinout, but rated only to 125 °C industrial range (not AEC-Q100) | Lacks automotive qualification; unsuitable for vehicle cabin modules requiring AEC-Q100 Rev. H | Prefer TC7SZ126F,LJ(CT) for automotive designs; SN74LVC1G125DBVR acceptable for industrial controls with wider temp range needs. |
| 74LVC1G126GW,125 | NXP variant with same logic function and SOT-353 (SC-88A) 5-pin package - different footprint, not pin-compatible | Requires PCB redesign due to SC-88A vs. SOT-25; slightly higher ICC (0.5 µA typ.) | Choose TC7SZ126F,LJ(CT) when SOT-25 layout reuse is critical; 74LVC1G126GW,125 only if SC-88A is already standardized. |
Compared with SN74LVC1G125DBVR and 74LVC1G126GW,125, the TC7SZ126F,LJ(CT) uniquely combines AEC-Q100 Rev. H qualification, 5.5 V input tolerance, and SOT-25 packaging - making it the only drop-in solution for automotive body electronics requiring guaranteed reliability at 85 °C ambient.
Availability
TC7SZ126F,LJ(CT) is available at Aetrix Electronics and suitable for automotive body control units, industrial PLC I/O modules, and low-power IoT sensor hubs requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for TC7SZ126F,LJ(CT) 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, power devices, and logic ICs for automotive, industrial, and consumer applications.
The TC7SZ series targets ultra-small, high-speed logic functions for space- and power-constrained embedded systems - emphasizing low-voltage operation, wide supply range, and automotive reliability.
FAQ
What is the operating temperature range specified for TC7SZ126F,LJ(CT)?
The TC7SZ126F,LJ(CT) is rated for operation from –40 °C to +85 °C, as confirmed by AEC-Q100 Rev. H qualification testing. This range applies specifically to devices with ordering part number ending in "J(CT", per Toshiba's datasheet revision 3.0.A. It is not rated for the extended –40 °C to +125 °C range offered by other variants in the TC7SZ126 family.
Does TC7SZ126F,LJ(CT) support level shifting between 1.8 V and 5 V logic domains?
Yes, the TC7SZ126F,LJ(CT) supports bidirectional level shifting: its 5.5 V-tolerant inputs accept 0–5.5 V signals regardless of VCC, and its output drives rail-to-rail between GND and VCC. When powered at 1.8 V, it safely interfaces with 5 V peripherals; when powered at 5 V, it drives 5 V logic loads directly - no external resistors or translators needed.
Is TC7SZ126F,LJ(CT) pin-compatible with SN74LVC1G125DBVR?
Yes, the TC7SZ126F,LJ(CT) and SN74LVC1G125DBVR share identical SOT-25 pinout (A–GND–Y–VCC–G), same terminal numbering, and matching functional assignment. However, TC7SZ126F,LJ(CT) provides AEC-Q100 qualification and 5.5 V input tolerance, whereas SN74LVC1G125DBVR does not - making them electrically interchangeable but not functionally equivalent in automotive contexts.
What is the maximum output current specification for TC7SZ126F,LJ(CT) at 3.0 V supply?
The TC7SZ126F,LJ(CT) guarantees ±24 mA minimum output current at VCC = 3.0 V, as specified in Toshiba's DC Characteristics table (Section 9.1). This applies to both sourcing (VOH at IOH = –24 mA) and sinking (VOL at IOL = 24 mA) conditions, ensuring reliable drive of multiple CMOS loads or moderate-current LEDs without external amplification.
How does the power-down protection feature work in TC7SZ126F,LJ(CT)?
When VCC = 0 V, the TC7SZ126F,LJ(CT) internally disables its output stage and limits OFF-state leakage to ≤0.1 µA (max), preventing back-current flow into the device from externally driven signals. This behavior is documented in the Absolute Maximum Ratings and Electrical Characteristics sections, and ensures safe hot-plug or partial-power-down operation in modular systems.
TC7SZ126F,LJ(CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TC7SZ
- Package/Case:
- SC-74A, SOT-753
- 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:
- 32mA, 32mA
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMV
TC7SZ126F,LJ(CT FAQ
1.How can I place an order for TC7SZ126F,LJ(CT through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7SZ126F,LJ(CT 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 TC7SZ126F,LJ(CT reliable?
The price and inventory of TC7SZ126F,LJ(CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC7SZ126F,LJ(CT is usually 5 days.
3.What payment methods are accepted for TC7SZ126F,LJ(CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7SZ126F,LJ(CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7SZ126F,LJ(CT?
TC7SZ126F,LJ(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7SZ126F,LJ(CT 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 TC7SZ126F,LJ(CT?
For technical support, including TC7SZ126F,LJ(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7SZ126F,LJ(CT requirements.
6.How does Aetrix verify that TC7SZ126F,LJ(CT is sourced from the original manufacturer or authorized distributors?
All TC7SZ126F,LJ(CT 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 TC7SZ126F,LJ(CT meets industry standards.
7.What is the process for return or replacement of TC7SZ126F,LJ(CT?
All TC7SZ126F,LJ(CT units undergo pre-shipment inspection (PSI). If there is an issue with TC7SZ126F,LJ(CT, 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 TC7SZ126F,LJ(CT part is unused and in its original packaging.
Return procedure for TC7SZ126F,LJ(CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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