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Toshiba Semiconductor and Storage TC7WH34FK,LJ(CT
- Part No.:
- TC7WH34FK,LJ(CT
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
TC7WH34FK,LJ(CT.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V US8
- Quantity:
- Payment:
- Shipping:
Inventory:22,173
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Product details
Overview
TC7WH34FK,LJ(CT) from Toshiba Electronic Devices & Storage Corporation is a triple non-inverting buffer IC in US8 (SOT-765) package, operating from 2.0 V to 5.5 V supply, delivering 3.8 ns typical propagation delay at 5.0 V/15 pF, with AEC-Q100 Rev. H qualification and -40 °C to +125 °C automotive-grade temperature range. It serves as a high-speed, low-power signal conditioning and fanout driver in automotive control modules.
For engineers reviewing the TC7WH34FK,LJ(CT) datasheet, TC7WH34FK,LJ(CT) pinout, TC7WH34FK,LJ(CT) application, or TC7WH34FK,LJ(CT) equivalent, key selection criteria include its 5.5 V tolerant inputs, balanced tPLH/tPHL delays, ±25 mA output drive capability, and identical pinout/function with TC7W34 for drop-in compatibility in legacy designs.
Technical Context
This device implements three independent CMOS non-inverting buffers on a single silicon monolithic die. Each channel features rail-to-rail input voltage tolerance up to 5.5 V, enabling interfacing between mixed-voltage domains without level shifters.
Its design emphasizes noise immunity (VNIH/VNIL ≥ 28 % VCC), low quiescent current (≤ 40 µA over full temperature range), and matched propagation delays (tPLH ≈ tPHL), making it suitable for timing-critical signal distribution where skew minimization is essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.0 V to 5.5 V - supports direct interface with 3.3 V and 5 V logic families without external regulators. |
| Propagation Delay | 3.8 ns (typ.) at VCC = 5.0 V, CL = 15 pF - enables >200 MHz signal buffering in high-speed digital control paths. |
| Output Drive | ±25 mA - sufficient to drive multiple CMOS loads or moderate capacitive traces without external buffers. |
| Input Tolerance | 5.5 V tolerant - allows safe connection to higher-voltage signals even when VCC = 2.0 V or 3.3 V. |
| Operating Temperature | -40 °C to +125 °C - qualified per AEC-Q100 Rev. H for under-hood automotive applications. |
| Quiescent Current | 40 µA (max) at Ta = 125 °C - ensures minimal power impact in always-on vehicle subsystems. |
| Noise Immunity | VNIH/VNIL ≥ 28 % VCC - provides robust operation in electrically noisy automotive environments. |
Pinout & Package
TC7WH34FK,LJ(CT) uses the US8 (JEDEC SOT-765) 8-pin ultra-thin shrink small-outline package, measuring 2.1 mm × 2.0 mm × 0.55 mm (typ.), with 0.5 mm lead pitch and gull-wing terminations. This compact footprint supports high-density PCB layouts in space-constrained automotive ECUs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Input A1 | Non-inverting input for first buffer channel; accepts 0–5.5 V logic levels regardless of VCC. |
| 2 | Output Y1 | Inverted-phase output of A1; drives CMOS/TTL loads with ±25 mA sink/source capability. |
| 3 | GND | Digital ground reference for all internal circuitry and I/O terminals. |
| 4 | Output Y2 | Inverted-phase output of A2; electrically isolated from Y1 but shares same VCC/GND rails. |
| 5 | Input A2 | Non-inverting input for second buffer channel; functionally identical to Pin 1. |
| 6 | VCC | Positive supply rail (2.0–5.5 V); powers all three buffer channels and internal bias networks. |
| 7 | Input A3 | Non-inverting input for third buffer channel; supports same voltage tolerance and timing as Pins 1 and 5. |
| 8 | Output Y3 | Inverted-phase output of A3; fully buffered and slew-rate controlled for clean edge transitions. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Rev. H qualified | Validated for automotive use including temperature cycling, HTOL, and ESD testing per stress test conditions. |
| Balanced propagation delays | tPLH ≈ tPHL ensures minimal duty-cycle distortion when buffering clock or PWM signals. |
| Wide VCC range (2.0–5.5 V) | Eliminates need for separate voltage translators in multi-rail systems such as body control modules. |
| 5.5 V tolerant inputs | Enables direct connection to 5 V microcontroller GPIOs while operating at 3.3 V VCC, reducing BOM count. |
| Low ICC at high temperature | 40 µA max at 125 °C supports reliable operation in thermally stressed engine bay locations. |
Applications
| Automotive Body Control Module | Industrial PLC I/O Expansion |
|---|---|
|
Use Scenario: Signal buffering between 5 V sensor interfaces and 3.3 V MCU GPIOs in door module ECUs. IC Role / Device Role / Timing Role: Triple non-inverting buffer providing level-tolerant, low-skew signal translation and fanout. Use Value: Eliminates discrete level shifters; 5.5 V input tolerance and 3.8 ns delay ensure accurate pulse timing for window lift and mirror position feedback. |
Use Scenario: Driving multiple optocoupler inputs from a single FPGA I/O bank in modular I/O racks. IC Role / Device Role / Timing Role: High-drive buffer replicating control signals across isolated channels with matched rise/fall times. Use Value: ±25 mA output capability and balanced tPLH/tPHL reduce inter-channel timing skew below 0.5 ns, improving synchronization accuracy. |
| Automotive HVAC Control Unit | Medical Diagnostic Equipment Interface |
|
Use Scenario: Isolating and amplifying PWM fan speed commands from MCU to motor driver ICs in climate control systems. IC Role / Device Role / Timing Role: Non-inverting buffer preserving PWM duty cycle integrity while adding drive strength and noise margin. Use Value: 28 % VCC noise immunity and -40 °C to +125 °C operation prevent false triggering during thermal transients in dashboard-mounted units. |
Use Scenario: Conditioning TTL-level serial control signals between patient monitor mainboard and detachable sensor modules. IC Role / Device Role / Timing Role: Low-power, high-reliability signal repeater ensuring deterministic latency and ESD-hardened I/O. Use Value: AEC-Q100 qualification and <10 ns max propagation delay support real-time command-response loops required for FDA-compliant diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple non-inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TC7W34FU,LF | Same pinout and function, but rated only to +85 °C (Topr = -40 to +85 °C); no AEC-Q100 claim. | Suitable for industrial or consumer applications where extended temperature is not required. | Select TC7W34FU,LF only if automotive qualification and 125 °C operation are unnecessary. |
| SN74LVC3G34DCUR | 3.3 V only VCC range (1.65–3.6 V); 3.7 ns typ. tPD at 3.3 V; no 5.5 V input tolerance. | Limited to 3.3 V systems; requires external level shifting for 5 V signal sources. | Choose SN74LVC3G34DCUR only in pure 3.3 V designs where footprint compatibility (VSSOP-8) is prioritized over voltage flexibility. |
Compared with TC7WH34FK,LJ(CT), TC7W34FU,LF offers identical functionality at lower cost but lacks automotive qualification and high-temperature capability, while SN74LVC3G34DCUR delivers slightly faster performance in 3.3 V-only systems but cannot replace TC7WH34FK,LJ(CT) in mixed-voltage or automotive contexts without redesign.
Availability
TC7WH34FK,LJ(CT) is available at Aetrix Electronics and suitable for automotive body control, industrial PLC I/O expansion, and medical diagnostic equipment requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for TC7WH34FK,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 is a Japanese semiconductor manufacturer specializing in power devices, logic ICs, and storage solutions, with decades of automotive-grade component development experience.
The TC7WH series targets high-reliability automotive and industrial applications, designed specifically to deliver robust signal buffering with wide voltage tolerance, low power, and AEC-Q100 compliance in compact packages.
FAQ
What is the maximum operating temperature for TC7WH34FK,LJ(CT)?
The TC7WH34FK,LJ(CT) is rated for continuous operation from -40 °C to +125 °C, validated per AEC-Q100 Rev. H requirements. This rating applies specifically to units with ordering suffix "J(CT)" - confirmed in Toshiba's Rev. 4.0.B datasheet Section 8, Note 2. The TC7WH34FK,LJ(CT) maintains full DC and AC specifications across this full range, including 40 µA max ICC at 125 °C.
Does TC7WH34FK,LJ(CT) support 5 V input signals when powered at 3.3 V?
Yes, TC7WH34FK,LJ(CT) features 5.5 V tolerant inputs, allowing safe application of 0–5.5 V logic signals regardless of VCC setting (2.0–5.5 V). This is explicitly stated in Section 2 Features (item 6) and verified in Absolute Maximum Ratings (VIN = -0.5 to 7.0 V). Therefore, TC7WH34FK,LJ(CT) can directly interface 5 V sensors or microcontrollers while operating at 3.3 V VCC without external clamping or level-shifting circuitry.
Is TC7WH34FK,LJ(CT) pin-compatible with TC7W34?
Yes, TC7WH34FK,LJ(CT) has identical pin assignment and function with TC7W34, as confirmed in Section 2 Features (item 9) of the datasheet. Both share the same US8 package, pinout topology (A1/Y1/GND/Y2/A2/VCC/A3/Y3), and truth table behavior. However, TC7WH34FK,LJ(CT) adds AEC-Q100 qualification and extended temperature range - making it a functional and physical drop-in upgrade for TC7W34 in automotive designs.
What is the typical propagation delay of TC7WH34FK,LJ(CT) at 3.3 V?
The typical propagation delay (tPLH/tPHL) of TC7WH34FK,LJ(CT) is 5.0 ns at VCC = 3.3 V ± 0.3 V and CL = 15 pF, per Section 9.4 AC Characteristics. This value is measured under standard load conditions and reflects the actual gate delay observed in 3.3 V system implementations - critical for timing budgeting in automotive communication interfaces and sensor signal conditioning paths using TC7WH34FK,LJ(CT).
How much output current can TC7WH34FK,LJ(CT) source or sink?
TC7WH34FK,LJ(CT) guarantees ±25 mA output current per channel (IOUT = ±25 mA), as specified in Absolute Maximum Ratings (Section 7). Under normal operating conditions, it delivers VOH ≥ 4.4 V and VOL ≤ 0.1 V at IOH = -8 mA and IOL = 8 mA (VCC = 4.5 V), confirming robust drive capability sufficient for driving multiple CMOS inputs or moderate capacitive loads without signal degradation - a key specification for reliable operation in TC7WH34FK,LJ(CT)-based fanout applications.
TC7WH34FK,LJ(CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TC7WH
- 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:
- -
- Output Type:
- Push-Pull
- Current - Output High, Low:
- 8mA, 8mA
- Voltage - Supply:
- 2V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SSOP
TC7WH34FK,LJ(CT FAQ
1.How can I place an order for TC7WH34FK,LJ(CT through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7WH34FK,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 TC7WH34FK,LJ(CT reliable?
The price and inventory of TC7WH34FK,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 TC7WH34FK,LJ(CT is usually 5 days.
3.What payment methods are accepted for TC7WH34FK,LJ(CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7WH34FK,LJ(CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7WH34FK,LJ(CT?
TC7WH34FK,LJ(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7WH34FK,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 TC7WH34FK,LJ(CT?
For technical support, including TC7WH34FK,LJ(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7WH34FK,LJ(CT requirements.
6.How does Aetrix verify that TC7WH34FK,LJ(CT is sourced from the original manufacturer or authorized distributors?
All TC7WH34FK,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 TC7WH34FK,LJ(CT meets industry standards.
7.What is the process for return or replacement of TC7WH34FK,LJ(CT?
All TC7WH34FK,LJ(CT units undergo pre-shipment inspection (PSI). If there is an issue with TC7WH34FK,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 TC7WH34FK,LJ(CT part is unused and in its original packaging.
Return procedure for TC7WH34FK,LJ(CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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