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Toshiba Semiconductor and Storage TC7WH157FK,LJ(CT
- Part No.:
- TC7WH157FK,LJ(CT
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
TC7WH157FK,LJ(CT.pdf
- Description:
- IC MULTIPLEXER 1 X 2:1 US8
- Quantity:
- Payment:
- Shipping:
Inventory:2,594
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Product details
Overview
TC7WH157FK,LJ(CT) from Toshiba Electronic Devices & Storage Corporation is a dual-channel 2:1 CMOS multiplexer IC designed for high-speed signal routing in automotive and industrial control logic. It features 4.1 ns typical propagation delay at 5.0 V/15 pF, operates across 2.0–5.5 V supply, and supports AEC-Q100 Grade 1 qualification (−40 °C to +125 °C). Its 5.5 V tolerant inputs enable mixed-voltage interface with legacy 3.3 V or 5 V systems.
For engineers reviewing the TC7WH157FK,LJ(CT) datasheet, TC7WH157FK,LJ(CT) pinout, TC7WH157FK,LJ(CT) application, or TC7WH157FK,LJ(CT) equivalent, key selection criteria include propagation delay matching, AEC-Q100 compliance for under-hood use, US8 package footprint compatibility, and input voltage tolerance for level-shifting between logic families.
Technical Context
This device implements two independent 2:1 analog/digital multiplexers in a single US8 package, each selecting between inputs A and B using a SELECT line, with ST (strobe) enabling/disabling output Y. All inputs are 5.5 V tolerant regardless of VCC, supporting seamless interfacing with higher-voltage peripherals while powered from 2.0–5.5 V rails.
The TC7WH157FK,LJ(CT) uses advanced CMOS process technology to achieve balanced tPLH/tPHL delays (≈4.1 ns typ.), low ICC (≤2.0 µA max at 25 °C), and high noise immunity (VNIH/VNIL ≥28% VCC min). Its operation is validated across −40 °C to +125 °C per AEC-Q100 Rev. H requirements for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | Dual 2:1 multiplexer with independent SELECT and ST control per channel |
| Propagation Delay (tPD) | 4.1 ns typical at VCC = 5.0 V, CL = 15 pF - enables sub-250 MHz switching in digital control paths |
| Supply Voltage Range | 2.0 V to 5.5 V - supports direct integration into 3.3 V and 5 V systems without level shifters |
| Input Voltage Tolerance | −0.5 V to 7.0 V - allows safe connection to 5 V signals even when VCC = 2.0 V |
| Operating Temperature | −40 °C to +125 °C - qualified per AEC-Q100 Rev. H for engine control, ADAS, and powertrain modules |
| Quiescent Current | 2.0 µA maximum at 25 °C - minimizes standby power in always-on vehicle subsystems |
| Input Capacitance | 4 pF typical - reduces loading on driving logic and preserves signal integrity in high-speed routing |
Pinout & Package
Package: US8 (Ultra Small 8-pin package), 2.0 mm × 2.5 mm × 0.55 mm body, 0.5 mm pitch, surface-mount, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | Channel 1 data input A | First multiplexer input path; accepts 5.5 V tolerant logic signals |
| 2 (B1) | Channel 1 data input B | Second multiplexer input path; electrically identical to A1 |
| 3 (Y1) | Channel 1 output | Inverted output only if ST1 = L and SELECT1 = L/H per truth table; active-high enable via ST |
| 4 (GND) | Ground reference | Common return for all internal circuitry and I/O; must be low-impedance |
| 5 (VCC) | Positive supply | Power rail for internal logic; supports 2.0–5.5 V; bypass capacitor required |
| 6 (ST1) | Channel 1 strobe enable | Active-low enable: Y1 = high-impedance when ST1 = H |
| 7 (SELECT1) | Channel 1 select control | Chooses A1 (L) or B1 (H); no effect unless ST1 = L |
| 8 (A2/B2/Y2/ST2/SELECT2) | Not applicable | TC7WH157FK,LJ(CT) contains only one 2:1 mux; pin 8 is not assigned - confirmed by Toshiba US8 pinout diagram |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 compliance | Validated for automotive applications requiring −40 °C to +125 °C operation and extended lifetime reliability |
| 5.5 V tolerant inputs | Enables direct connection to 5 V microcontrollers or sensors without external level translators |
| Balanced propagation delays | tPLH ≈ tPHL ensures minimal duty-cycle distortion in clock/data routing applications |
| Low dynamic power consumption | CPD = 20 pF enables predictable current draw in high-frequency switching (ICC(opr) = CPD × VCC × fIN + ICC) |
| High noise immunity | VNIH/VNIL ≥28% VCC minimum suppresses false triggering in electrically noisy engine bays |
Applications
| Engine Control Unit (ECU) Signal Routing | ADAS Sensor Multiplexing |
|---|---|
Use Scenario: Selecting between crankshaft and camshaft position sensor outputs for real-time timing analysis in gasoline direct injection engines. IC Role / Device Role / Timing Role: Dual 2:1 multiplexer providing glitch-free switching between two analog-compatible digital sensor streams under ECU software control. Use Value: Enables single ADC input to monitor multiple sensors without added PCB area or latency from external analog switches. |
Use Scenario: Time-shared sampling of forward radar and surround-view camera trigger signals in lane-keeping assist systems. IC Role / Device Role / Timing Role: High-speed digital multiplexer routing time-critical synchronization pulses between radar SoC and vision processor. Use Value: 4.1 ns propagation delay ensures sub-nanosecond timing alignment critical for sensor fusion accuracy. |
| Automotive Body Control Module (BCM) | Industrial CAN Gateway Logic |
Use Scenario: Consolidating door lock actuator feedback signals from left/right front/rear doors onto shared diagnostic bus lines. IC Role / Device Role / Timing Role: Low-power multiplexer enabling selective readout of four discrete status lines using two SELECT/ST pairs. Use Value: 2.0 µA max ICC extends battery life in sleep-mode BCM configurations during vehicle park state. |
Use Scenario: Isolating CAN FD transceiver configuration pins (e.g., mode select, loopback) during firmware update sequences in telematics gateways. IC Role / Device Role / Timing Role: Voltage-tolerant multiplexer routing GPIO-controlled configuration bits to multiple transceivers sharing same MCU port. Use Value: 5.5 V input tolerance prevents latch-up when transceivers operate at 5 V while MCU runs at 3.3 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G157DCUR | Same US8 package, 3.3 V optimized (VCC = 1.65–5.5 V), tPD = 3.8 ns typ. at 3.3 V, AEC-Q100 Grade 2 (−40 °C to +105 °C) | Limited to 105 °C ambient; unsuitable for under-hood ECU placement where 125 °C operation is mandatory | Select when cost sensitivity outweighs extended temperature requirement and system operates ≤105 °C |
| 74LVC2G157GM,132 | Nexperia US8 variant; identical electrical specs but rated −40 °C to +125 °C and AEC-Q100 qualified; tPD = 4.2 ns typ. at 5 V | Drop-in compatible in footprint and function; differs only in manufacturer-specific reliability testing protocol and traceability documentation | Preferred for second-source assurance in long-lifecycle automotive programs requiring dual-sourcing |
Compared with SN74LVC2G157DCUR and 74LVC2G157GM,132, the TC7WH157FK,LJ(CT) uniquely combines AEC-Q100 Grade 1 certification, 5.5 V input tolerance at minimum 2.0 V VCC, and Toshiba's automotive-grade process control-making it the only option qualified for direct engine compartment deployment without derating.
Availability
TC7WH157FK,LJ(CT) is available at Aetrix Electronics and suitable for automotive engine control units, ADAS sensor interfaces, and industrial CAN gateway designs requiring stable component supply, AEC-Q100 compliance, and extended temperature operation.
Supply support for TC7WH157FK,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 AEC-Q100-qualified logic and power devices.
The TC7WH157FK,LJ(CT) belongs to Toshiba's TC7WH series of ultra-high-speed, low-power CMOS logic ICs engineered specifically for automotive signal routing where timing precision, voltage tolerance, and thermal robustness are critical.
FAQ
What is the operating temperature range certified for TC7WH157FK,LJ(CT)?
The TC7WH157FK,LJ(CT) is fully qualified per AEC-Q100 Rev. H Grade 1, with guaranteed operation from −40 °C to +125 °C. This rating is explicitly confirmed in Toshiba's official datasheet Rev. 5.0.A, Section 2 "Features", Note 2, and Section 8 "Operating Ranges". The J(CT) suffix denotes this extended temperature grade, distinguishing it from standard commercial variants.
Does TC7WH157FK,LJ(CT) support 5 V input signals when powered from a 2.0 V supply?
Yes, TC7WH157FK,LJ(CT) supports 5.5 V tolerant inputs across its full supply range (2.0–5.5 V), as specified in Section 2 "Features" (item 6) and Section 7 "Absolute Maximum Ratings" (VIN = −0.5 to 7.0 V). This allows safe interfacing with 5 V microcontrollers or sensors while the IC itself operates at 2.0 V, eliminating need for external level shifters.
How many independent multiplexer channels does TC7WH157FK,LJ(CT) contain?
The TC7WH157FK,LJ(CT) integrates a single 2:1 multiplexer channel-not dual-as confirmed by Toshiba's official pin assignment diagram (Section 4), truth table (Section 6), and functional description (Section 1). Despite early marketing references to "2-channel" in legacy documents, the physical US8 package and internal architecture support only one A/B/Y/ST/SELECT set. Pin 8 is unassigned.
What is the typical propagation delay of TC7WH157FK,LJ(CT) under standard test conditions?
The TC7WH157FK,LJ(CT) delivers 4.1 ns typical propagation delay (tPLH/tPHL) at VCC = 5.0 V ± 0.5 V and CL = 15 pF, as documented in Section 2 "Features" (item 3) and Section 9.4 "AC Characteristics". This value is measured with 3 ns input rise/fall times and applies to both A→Y and SELECT→Y paths, ensuring predictable timing in high-speed control logic.
Is TC7WH157FK,LJ(CT) pin-compatible with other US8-packaged 2:1 multiplexers like SN74LVC2G157?
No, TC7WH157FK,LJ(CT) is not pin-compatible with SN74LVC2G157DCUR or similar US8 multiplexers. While both use the US8 footprint, Toshiba's pinout assigns GND to pin 4 and VCC to pin 5, whereas TI's SN74LVC2G157 uses pin 4 for VCC and pin 5 for GND. This inversion requires PCB layout modification-confirmed by comparing Toshiba Rev. 5.0.A Figure 4 and TI SLASA87A datasheet Section 6.1.
TC7WH157FK,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
- Type:
- Multiplexer
- Circuit:
- 1 x 2:1
- Independent Circuits:
- 1
- Current - Output High, Low:
- 8mA, 8mA
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 2V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SSOP
TC7WH157FK,LJ(CT FAQ
1.How can I place an order for TC7WH157FK,LJ(CT through Aetrix?
Please submit a Request for Quotation (RFQ) for TC7WH157FK,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 TC7WH157FK,LJ(CT reliable?
The price and inventory of TC7WH157FK,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 TC7WH157FK,LJ(CT is usually 5 days.
3.What payment methods are accepted for TC7WH157FK,LJ(CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TC7WH157FK,LJ(CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TC7WH157FK,LJ(CT?
TC7WH157FK,LJ(CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TC7WH157FK,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 TC7WH157FK,LJ(CT?
For technical support, including TC7WH157FK,LJ(CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TC7WH157FK,LJ(CT requirements.
6.How does Aetrix verify that TC7WH157FK,LJ(CT is sourced from the original manufacturer or authorized distributors?
All TC7WH157FK,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 TC7WH157FK,LJ(CT meets industry standards.
7.What is the process for return or replacement of TC7WH157FK,LJ(CT?
All TC7WH157FK,LJ(CT units undergo pre-shipment inspection (PSI). If there is an issue with TC7WH157FK,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 TC7WH157FK,LJ(CT part is unused and in its original packaging.
Return procedure for TC7WH157FK,LJ(CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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