My Inquiry
My Account
Toshiba Semiconductor and Storage TC7WP3125FK,LF(CT
- Part No.:
- TC7WP3125FK,LF(CT
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
TC7WP3125FK,LF(CT.pdf
- Description:
- IC BUS SWITCH 2 X 1:1 US8
- Quantity:
- Payment:
- Shipping:
Inventory:5,246
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TC7WP3125FK,LF(CT from Toshiba Electronic Devices & Storage Corporation is a dual-supply 2-bit bus buffer IC designed for voltage-level translation between mismatched logic domains. It supports A-side supply voltages from 1.2 V to 2.7 V and B-side supplies from 1.65 V to 3.6 V, delivers 12 mA output drive at 3.0 V B-side, achieves 6.8 ns max propagation delay (VCCA = 2.5 V, VCCB = 3.3 V), and operates across –40 °C to +125 °C - enabling use in automotive infotainment power management interfaces.
For engineers reviewing the TC7WP3125FK,LF(CT datasheet, TC7WP3125FK,LF(CT pinout, TC7WP3125FK,LF(CT application, or TC7WP3125FK,LF(CT equivalent, this page provides verified pin functions, dual-rail operating condition constraints, high-impedance enable timing (tPZL/tPZH ≤ 9.9 ns), 3.6 V tolerant I/Os, and real-world interface design guidance for mixed-voltage SoC interconnects.
Technical Context
The TC7WP3125FK,LF(CT implements two independent bidirectional buffer channels with separate A-input and B-output rails, each controlled by a shared active-low OE input that places both B-outputs in high-impedance state. Its silicon-gate CMOS process enables overvoltage tolerance up to 3.6 V on all pins regardless of supply state, and floating A-bus operation is permitted when OE = "H".
It features dual independent supply domains: VCCA powers input circuitry and internal logic, while VCCB powers output drivers and level-shifting stages. The device enforces VCCA ≤ VCCB per datasheet Note 1, and includes ESD protection on all pins plus power-down leakage control (IOFF1/IOFF2 ≤ ±2.0 µA at Ta = 85 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCCA Range | 1.1 V to 2.7 V - supports 1.2 V/1.5 V/1.8 V/2.5 V logic domains on A-side |
| VCCB Range | 1.65 V to 3.6 V - interfaces with 1.8 V/2.5 V/3.3 V buses on B-side |
| tpd (max) | 6.8 ns @ VCCA = 2.5 V, VCCB = 3.3 V - enables >100 MHz data transfer in low-latency paths |
| IOLB / IOHB | 12 mA min @ VCCB = 3.0 V - drives standard CMOS loads without external buffers |
| Operating Temp | –40 °C to +125 °C - qualified for under-hood automotive and industrial control applications |
| Package | US8 (JEDEC SOT-765) - 2.1 mm × 2.0 mm × 0.55 mm ultra-small footprint for space-constrained PCBs |
| IOZB (OFF-state) | ±2.0 µA max @ Ta = 85 °C - ensures minimal signal coupling during isolation |
Pinout & Package
US8 package: 8-pin ultra-small surface-mount package with 0.5 mm pitch, dimensions 2.1 mm × 2.0 mm × 0.55 mm, weight 0.01 g (typ.), JEDEC designation SOT-765.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | A-side input channel 1 | Accepts logic signals referenced to VCCA; tolerant to 3.6 V regardless of VCCA state |
| 2 (A2) | A-side input channel 2 | Independent of A1; enables dual-bit parallel translation without shared logic |
| 3 (GND) | Ground reference | Common return for both supply domains; must be low-impedance for noise immunity |
| 4 (VCCA) | A-side supply | Powers input stage and internal logic; must be ≤ VCCB per datasheet constraint |
| 5 (VCCB) | B-side supply | Powers output drivers; sets VOH/VOL thresholds and output current capability |
| 6 (OE) | Active-low output enable | Drives both B-outputs to high-Z when high; must be driven from VCCA-referenced logic |
| 7 (B1) | B-side output channel 1 | Level-shifted replica of A1; 3.6 V tolerant even when VCCB = 0 V |
| 8 (B2) | B-side output channel 2 | Level-shifted replica of A2; electrically isolated from B1 except via shared VCCB/GND |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent supply rails | VCCA and VCCB operate independently - allows interfacing 1.2 V FPGA I/O with 3.3 V MCU peripherals |
| 3.6 V tolerant I/Os | All pins withstand 3.6 V regardless of supply status - eliminates need for external clamping diodes |
| Ultra-low OFF-state leakage | IOZB ≤ ±2.0 µA at 125 °C - maintains signal integrity during hot-swap or partial power-down |
| High-speed translation | 6.8 ns max tpd at 2.5 V/3.3 V - supports DDR clock domains and fast serial control links |
| Floating A-bus support | A1/A2 may be left unconnected when OE = "H" - simplifies PCB routing in unused channel scenarios |
Applications
| Automotive Infotainment Interface | Industrial PLC I/O Module |
|---|---|
Use Scenario: Translating control signals between a 1.2 V automotive SoC and 3.3 V CAN transceiver or display driver. IC Role / Device Role / Timing Role: Dual-rail level shifter buffering command lines (e.g., reset, enable) with sub-10 ns latency and rail-to-rail voltage compatibility. Use Value: Eliminates discrete resistor-divider networks while maintaining AEC-Q100-compliant timing margins and thermal robustness up to 125 °C. |
Use Scenario: Isolating fieldbus communication lines (e.g., RS-485 PHY) from a 1.8 V microcontroller in programmable logic controllers. IC Role / Device Role / Timing Role: Voltage translator with OE-controlled tri-state outputs enabling shared bus arbitration and hot-plug-safe signal routing. Use Value: Enables deterministic bus release within 9.9 ns (tPHZ max) and prevents back-driving during power sequencing mismatches. |
| Portable Medical Sensor Hub | 5G Small Cell Baseband Interface |
Use Scenario: Interfacing ultra-low-power 1.5 V biosensor ADCs with a 2.5 V FPGA-based signal processor in wearable diagnostics devices. IC Role / Device Role / Timing Role: Low-quiescent-current bus buffer supporting battery-operated operation and precise timing-critical data capture. Use Value: Delivers 10.5 ns tpd at 1.5 V/2.5 V while consuming <20 µA ICCA/ICCB in quiescent state - extends runtime in coin-cell-powered units. |
Use Scenario: Level-shifting JESD204B link control signals (SYNC~, SYSREF) between a 1.2 V ASIC and 3.3 V clock distribution IC in mmWave radio units. IC Role / Device Role / Timing Role: Precision timing buffer with matched propagation skew (tosHL ≤ 2.0 ns) for deterministic multi-lane synchronization. Use Value: Ensures sub-2 ns inter-channel skew across both bits - critical for JESD204B subclass 1 deterministic latency compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply bus buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74AVC2T244RSWR | Single 2-bit buffer with identical US8 package but only supports VCCA = 1.2–3.6 V / VCCB = 1.2–3.6 V; no explicit VCCA ≤ VCCB constraint | Broader supply flexibility but lacks guaranteed 3.6 V I/O tolerance during power-off states | Prefer when symmetric rail ranges are required and power sequencing independence is critical |
| TXS0102DCUR | Auto-direction sensing dual-bit translator in VSSOP-8; requires no OE pin but adds direction-control latency (~20 ns) | Eliminates OE routing but unsuitable for synchronous, OE-gated bus isolation like JTAG or SPI chip-select | Prefer when bidirectional data flow dominates and deterministic enable timing is not required |
Compared with SN74AVC2T244RSWR and TXS0102DCUR, the TC7WP3125FK,LF(CT uniquely guarantees 3.6 V I/O tolerance during VCCB = 0 V conditions and enforces strict VCCA ≤ VCCB operation - making it optimal for automotive and industrial systems where supply ramp rates differ and fault-tolerant isolation is mandatory.
Availability
TC7WP3125FK,LF(CT is available at Aetrix Electronics and suitable for automotive infotainment interfaces, industrial PLC I/O modules, and portable medical sensor hubs requiring stable component supply across extended temperature ranges and mixed-voltage designs.
Supply support for TC7WP3125FK,LF(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 high-reliability semiconductor solutions for automotive, industrial, and consumer applications, with emphasis on low-power, mixed-signal integration and AEC-Q100 qualification.
The TC7WP3125FK,LF(CT belongs to Toshiba's TC7WP family of ultra-low-voltage dual-supply translators, engineered specifically for energy-efficient voltage bridging in battery-powered and thermally constrained systems.
FAQ
What is the maximum allowable supply voltage difference between VCCA and VCCB for TC7WP3125FK,LF(CT?
The TC7WP3125FK,LF(CT datasheet explicitly prohibits operation with VCCA > VCCB (Note 1 in Section 10). While absolute maximum ratings allow both supplies up to 4.6 V, functional operation requires VCCA ≤ VCCB across the full operating range - e.g., 1.8 V on VCCA and 2.5 V on VCCB is valid; 2.5 V on VCCA and 1.8 V on VCCB is not permitted. This constraint ensures correct internal level-shifting and prevents latch-up.
Can TC7WP3125FK,LF(CT safely interface a 1.2 V microcontroller with a 3.3 V peripheral when VCCA = 1.2 V and VCCB = 3.3 V?
Yes - the TC7WP3125FK,LF(CT is fully specified for VCCA = 1.2 ± 0.1 V and VCCB = 3.3 ± 0.3 V operation. At these conditions, it delivers 22 ns max propagation delay, 52 ns max output disable time, and maintains 3.6 V I/O tolerance on all pins. However, output drive strength drops to 3 mA min (IOLB/IOHB) at VCCB = 1.65 V, so verify load capacitance and rise/fall time requirements for your 3.3 V peripheral.
Does TC7WP3125FK,LF(CT require external pull-up or pull-down resistors on unused inputs?
No - unused inputs (A1, A2, OE) must be tied to either VCCA or GND per Section 10 Note. The TC7WP3125FK,LF(CT does not include internal weak pull-ups/pull-downs. Leaving inputs floating violates the Absolute Maximum Ratings and risks increased ICC or erratic behavior due to noise coupling. OE must be actively driven - tying OE to VCCA disables outputs; tying to GND enables them.
What is the meaning of "floating A-bus is permitted" in the TC7WP3125FK,LF(CT datasheet?
When OE = "H", both B-outputs enter high-impedance state and the internal A-input receivers are effectively disconnected. Under this condition, A1 and A2 may be left unconnected (floating) without causing excessive current or logic contention - a feature useful in modular designs where one channel is unused. This permission applies only during OE = "H"; A inputs must be driven or terminated when OE = "L".
How does TC7WP3125FK,LF(CT handle power sequencing where VCCB ramps before VCCA?
The TC7WP3125FK,LF(CT includes power-down protection: all I/Os tolerate 3.6 V regardless of supply state, and IOFF1/IOFF2 leakage remains ≤ ±20.0 µA even when VCCA = 0 V and VCCB = 3.3 V (Section 11.1.2). This allows safe "VCCB-first" sequencing common in automotive systems, provided OE is held high until VCCA stabilizes to prevent unintended output activation.
TC7WP3125FK,LF(CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- TC7WP
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 1.1V ~ 2.7V, 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SSOP
TC7WP3125FK,LF(CT FAQ
1.How can I place an order for TC7WP3125FK,LF(CT through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7WP3125FK,LF(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 TC7WP3125FK,LF(CT reliable?
The price and inventory of TC7WP3125FK,LF(CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TC7WP3125FK,LF(CT is usually 5 days.
3.What payment methods are accepted for TC7WP3125FK,LF(CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7WP3125FK,LF(CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7WP3125FK,LF(CT?
TC7WP3125FK,LF(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7WP3125FK,LF(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 TC7WP3125FK,LF(CT?
For technical support, including TC7WP3125FK,LF(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7WP3125FK,LF(CT requirements.
6.How does Aetrix verify that TC7WP3125FK,LF(CT is sourced from the original manufacturer or authorized distributors?
All TC7WP3125FK,LF(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 TC7WP3125FK,LF(CT meets industry standards.
7.What is the process for return or replacement of TC7WP3125FK,LF(CT?
All TC7WP3125FK,LF(CT units undergo pre-shipment inspection (PSI). If there is an issue with TC7WP3125FK,LF(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 TC7WP3125FK,LF(CT part is unused and in its original packaging.
Return procedure for TC7WP3125FK,LF(CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TC7WP3125FK,LF(CT Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
