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Toshiba Semiconductor and Storage TC7SZ125F,LJ(CT
- Part No.:
- TC7SZ125F,LJ(CT
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TC7SZ125F,LJ(CT.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V SMV
- Quantity:
- Payment:
- Shipping:
Inventory:36,750
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Product details
Overview
TC7SZ125F,LJ(CT from Toshiba Electronic Devices & Storage Corporation is a single-channel CMOS bus buffer with 3-state output, designed for level-shifting and bus isolation in low-voltage digital systems. It operates from 1.65 V to 5.5 V, delivers ±24 mA output drive at VCC = 3.0 V, achieves 2.6 ns typical propagation delay at 5.0 V/50 pF, and supports automotive-grade temperature range (–40 °C to +125 °C) per AEC-Q100 Rev. H.
For engineers reviewing the TC7SZ125F,LJ(CT datasheet, TC7SZ125F,LJ(CT pinout, TC7SZ125F,LJ(CT application, or TC7SZ125F,LJ(CT equivalent, this device serves as a high-speed, 5.5 V-tolerant, power-down protected buffer for I²C bus expansion, microcontroller GPIO extension, and mixed-voltage interface bridging where 3-state control and rail-to-rail input compatibility are required.
Technical Context
This device implements a non-inverting tri-state buffer with active-low output enable (G). Its logic function is Y = A when G = L; Y = high-impedance when G = H. Input structure supports 5.5 V tolerance regardless of VCC, enabling safe interfacing with higher-voltage controllers while powered from 1.65–5.5 V rails.
The output stage features robust ±24 mA drive capability at 3.0 V and maintains sub-3 ns propagation delay across 1.8 V–5.0 V supply conditions. Power-down protection ensures outputs remain high-impedance and inputs clamp safely when VCC = 0 V - critical for hot-swap and partial-power-down system architectures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Non-inverting 3-state buffer (Y = A when G = L; Z when G = H) |
| Supply Voltage Range | 1.65 V to 5.5 V - enables operation across 1.8 V, 2.5 V, 3.3 V, and 5.0 V logic domains |
| Propagation Delay | 2.6 ns (typ.) at VCC = 5.0 V, CL = 50 pF - supports >300 MHz toggle rates in short-line applications |
| Output Drive | ±24 mA (min.) at VCC = 3.0 V - drives standard TTL loads and multiple CMOS inputs without buffering |
| Input Voltage Tolerance | –0.5 V to 6.0 V - allows 5 V logic inputs even when VCC = 1.8 V, eliminating level shifters |
| Operating Temperature | –40 °C to +125 °C - qualified per AEC-Q100 Rev. H for under-hood automotive use |
| Power-Down Protection | 5.5 V tolerant inputs and high-Z outputs at VCC = 0 V - prevents back-driving and latch-up during power sequencing |
Pinout & Package
Package: SOT-25 (JEDEC), also designated SMV by Toshiba; 5-pin surface-mount package with 0.95 mm pitch, 2.9 mm × 1.6 mm footprint, and 14 mg typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A) | Data input | Non-inverting input signal; 5.5 V tolerant, compatible with 1.65–5.5 V VCC |
| 2 (G) | Active-low output enable | Low enables output; high forces high-impedance state; 5.5 V tolerant |
| 3 (GND) | Ground reference | Primary return path for all internal circuitry and I/O current |
| 4 (Y) | 3-state output | Buffered non-inverted output; 5.5 V tolerant; power-down protected |
| 5 (VCC) | Positive supply | Core supply rail (1.65–5.5 V); powers internal logic and output drivers |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Rev. H qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| 5.5 V tolerant inputs & outputs | Enables direct connection to 5 V controllers while operating from 1.8 V or 3.3 V supplies - no external level shifter needed |
| Power-down protection | Guarantees high-impedance outputs and clamped inputs when VCC = 0 V - essential for hot-plug and partial-power-down systems |
| High-speed performance | 2.6 ns typical tPD at 5.0 V/50 pF meets timing requirements for fast microcontroller peripheral buses and FPGA I/O expansion |
| Wide supply range | 1.65–5.5 V operation supports legacy 5 V designs and modern ultra-low-power 1.8 V systems on same component |
Applications
| Automotive Body Control Module | I²C Bus Expansion |
|---|---|
|
Use Scenario: Isolating and extending I²C signals between MCU and remote sensors (e.g., door latch status, ambient light, seat position) in harsh automotive environments. IC Role / Device Role / Timing Role: Acts as a voltage-level translating, 3-state bus buffer to prevent contention during multi-master arbitration and support hot-swap of slave nodes. Use Value: Enables reliable communication across mixed-supply domains (e.g., 3.3 V MCU ↔ 5 V sensor) while maintaining AEC-Q100 compliance and surviving –40 °C to +125 °C operation. |
Use Scenario: Adding extra I²C slave addresses by buffering SDA/SCL lines to secondary bus segments with isolated pull-ups. IC Role / Device Role / Timing Role: Functions as a non-inverting repeater with controlled 3-state enable, preserving signal integrity and timing margins on extended traces. Use Value: Delivers 2.6 ns propagation delay and ±24 mA drive to maintain rise/fall times below 300 ns over 10 cm PCB traces - avoiding bus timeout errors. |
| Industrial PLC I/O Expansion | Portable Medical Device GPIO Interface |
|
Use Scenario: Buffering and isolating microcontroller GPIOs driving optocouplers, relays, or LED indicators in programmable logic controllers. IC Role / Device Role / Timing Role: Provides rail-to-rail input compatibility and high-current drive to directly switch 5 V indicator LEDs or drive 3.3 V logic-level optocoupler inputs. Use Value: Eliminates need for discrete transistor buffers; 5.5 V input tolerance allows direct connection to industrial 5 V fieldbus signals without external resistors. |
Use Scenario: Interfacing low-power ARM Cortex-M0+ MCU GPIOs (1.8 V) with legacy 3.3 V or 5 V peripheral ICs (e.g., ADCs, display drivers) in battery-powered diagnostic tools. IC Role / Device Role / Timing Role: Serves as a bidirectional voltage translator and bus isolator, enabled only during data transfer to minimize leakage. Use Value: Reduces system standby current via 3-state disable and supports 1.65 V minimum VCC - extending battery life in Class II medical devices. |
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, 1.65–5.5 V, but rated only to +85 °C (not AEC-Q100); tPD = 3.7 ns (typ.) at 3.3 V | Lacks automotive qualification and high-temp support; suitable for commercial/industrial use only | Select when AEC-Q100 and 125 °C operation are not required - lower cost and wider distributor stock |
| 74AUP1G125GW,125 | Smaller XSON-6 (1.2 × 1.0 mm) package; 0.8–3.6 V supply; tPD = 6.1 ns (typ.) at 3.0 V; max Topr = +125 °C but not AEC-Q100 certified | Ultra-low power (ICC = 0.9 µA typ.), but incompatible pinout and narrower voltage range limits mixed-rail use | Prefer for space-constrained, battery-powered designs needing <1 µA quiescent current - not for automotive or 5 V interface |
Compared with SN74LVC1G125DBVR and 74AUP1G125GW,125, the TC7SZ125F,LJ(CT uniquely combines AEC-Q100 Rev. H certification, –40 °C to +125 °C operation, 5.5 V input tolerance, and 2.6 ns speed - making it the only choice for automotive-grade, mixed-voltage bus buffering where reliability and timing margin are critical.
Availability
TC7SZ125F,LJ(CT is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O expansion, and portable medical device interface design requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for TC7SZ125F,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 high-reliability semiconductor components for automotive, industrial, and consumer applications, with emphasis on quality, longevity, and regulatory compliance.
The TC7SZ125F,LJ(CT belongs to Toshiba's TC7SZ series of ultra-high-speed, low-voltage CMOS logic buffers - engineered specifically for automotive subsystems and mixed-voltage digital interfaces demanding AEC-Q100 reliability and wide supply flexibility.
FAQ
What is the maximum operating temperature range for TC7SZ125F,LJ(CT?
The TC7SZ125F,LJ(CT is rated for –40 °C to +125 °C operation and qualified per AEC-Q100 Rev. H, making it suitable for under-hood automotive applications and high-temperature industrial environments. This rating applies specifically to devices with ordering part number ending in J(CT, as confirmed in Toshiba's Rev. 3.0.A datasheet Section 2 and Section 8.
Does TC7SZ125F,LJ(CT support 5 V logic inputs while powered from 1.8 V?
Yes, TC7SZ125F,LJ(CT features 5.5 V tolerant inputs - meaning it accepts input voltages from –0.5 V to 6.0 V independent of VCC. When powered from 1.8 V, it safely interfaces with 5 V microcontrollers or sensors without external level-shifting circuitry, as specified in Absolute Maximum Ratings (Section 7) and Operating Ranges (Section 8).
What is the typical propagation delay of TC7SZ125F,LJ(CT at 3.3 V supply?
At VCC = 3.3 V and CL = 50 pF, the TC7SZ125F,LJ(CT exhibits a typical propagation delay (tPLH/tPHL) of 2.5 ns, with maximum 5.2 ns over –40 °C to +125 °C (Section 9.6 AC Characteristics). This enables reliable operation in high-speed digital interfaces such as FPGA configuration buses and microcontroller peripheral expansion.
Is TC7SZ125F,LJ(CT pin-compatible with other SOT-25 bus buffers?
TC7SZ125F,LJ(CT uses the JEDEC-standard SOT-25 (5-pin) package with pin 1 = A, pin 2 = G (active-low OE), pin 3 = GND, pin 4 = Y, pin 5 = VCC. While footprint-compatible with SN74LVC1G125DBVR and 74AUP1G125GW,125, pin assignments differ - notably, SN74LVC1G125 uses pin 2 = VCC and pin 5 = G, so direct PCB replacement is not possible without layout revision.
What protection features does TC7SZ125F,LJ(CT include for power-down scenarios?
TC7SZ125F,LJ(CT provides 5.5 V power-down protection: outputs enter high-impedance state and inputs are clamped when VCC = 0 V, preventing back-driving and latch-up during hot-swap or partial-power-down sequences. This behavior is guaranteed per Section 2 Features (item 7) and Absolute Maximum Ratings (Section 7, Note 1).
TC7SZ125F,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
TC7SZ125F,LJ(CT FAQ
1.How can I place an order for TC7SZ125F,LJ(CT through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7SZ125F,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 TC7SZ125F,LJ(CT reliable?
The price and inventory of TC7SZ125F,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 TC7SZ125F,LJ(CT is usually 5 days.
3.What payment methods are accepted for TC7SZ125F,LJ(CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7SZ125F,LJ(CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7SZ125F,LJ(CT?
TC7SZ125F,LJ(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7SZ125F,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 TC7SZ125F,LJ(CT?
For technical support, including TC7SZ125F,LJ(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7SZ125F,LJ(CT requirements.
6.How does Aetrix verify that TC7SZ125F,LJ(CT is sourced from the original manufacturer or authorized distributors?
All TC7SZ125F,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 TC7SZ125F,LJ(CT meets industry standards.
7.What is the process for return or replacement of TC7SZ125F,LJ(CT?
All TC7SZ125F,LJ(CT units undergo pre-shipment inspection (PSI). If there is an issue with TC7SZ125F,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 TC7SZ125F,LJ(CT part is unused and in its original packaging.
Return procedure for TC7SZ125F,LJ(CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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