Toshiba Semiconductor and Storage TC7WPB9307FK(T5L,F

Overview

TC7WPB9307FK from Toshiba Electronic Devices & Storage Corporation is a CMOS 2-bit dual-supply bus switch enabling bidirectional level-shifting between mismatched voltage domains (e.g., 1.8 V ↔ 5.0 V). It features active-low Output Enable (OE), 5.5 V-tolerant OE input, 5.0 Ω typical ON-resistance at 3.0 V/4.5 V, and AEC-Q100 Grade 1 qualification for automotive use in powertrain and body control modules.

For engineers reviewing the TC7WPB9307FK datasheet, TC7WPB9307FK pinout, TC7WPB9307FK application, or TC7WPB9307FK equivalent, this page delivers verified electrical specs, US8 package details, level-shift behavior under -40°C to +125°C, and real-world substitution guidance - all grounded in Toshiba's Rev.7.0.A specification.

Technical Context

The TC7WPB9307FK implements two independent n-channel MOSFET-based bidirectional switches with common active-low OE control. Its dual-supply architecture supports VCCA = 1.65–5.0 V and VCCB = 2.3–5.5 V, enabling translation across six standard voltage pairings including 1.8 V ↔ 3.3 V and 2.5 V ↔ 5.0 V.

Level shifting requires external pull-up resistors on An/Bn lines to respective supplies; no restriction exists on relative An/Bn voltage magnitudes. The device provides 5.5 V tolerance and power-down protection at OE, with ESD-protected inputs and guaranteed operation over industrial and automotive temperature ranges.

Key Specifications

Pinout & Package

TC7WPB9307FK is housed in a US8 (JEDEC SOT-765) 8-pin ultra-thin small-outline package (0.01 g, 2.1 × 2.0 × 0.55 mm), optimized for space-constrained automotive and portable electronics PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-supply bus switch applications.

Compared with SN74AVC2T244RSWR and FXMA2102UMX, TC7WPB9307FK uniquely combines 5.5 V tolerance, active-low OE, AEC-Q100 qualification, and support for 1.8 V ↔ 5.0 V translation - making it the only option for automotive-grade isolated bridging where VCCB = 5.0 V and OE must be driven low to activate.

Availability

TC7WPB9307FK is available at Aetrix Electronics and suitable for automotive body control, industrial PLC I/O expansion, medical handheld diagnostics, and consumer IoT hub designs requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TC7WPB9307FK 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 components for automotive, industrial, and computing markets, with emphasis on AEC-Q100-qualified logic and power devices.

The TC7WPB9307FK belongs to Toshiba's dual-supply bus switch family engineered specifically for voltage-domain bridging in next-generation automotive ECUs and industrial edge controllers where mixed-voltage interoperability and functional safety compliance are mandatory.

FAQ

What is the key functional difference between TC7WPB9306FK and TC7WPB9307FK?

The TC7WPB9307FK uses an active-low Output Enable (OE) signal: the switch conducts when OE is LOW and isolates when OE is HIGH. In contrast, TC7WPB9306FK uses active-high OE. This polarity distinction determines how the device integrates with microcontroller GPIOs or system-level enable logic - TC7WPB9307FK is preferred when the host controller drives OE low to activate communication paths.

Does TC7WPB9307FK support bidirectional level shifting between 1.8 V and 5.0 V?

Yes, TC7WPB9307FK explicitly supports 1.8 V ↔ 5.0 V bidirectional level shifting per its operating ranges: VCCA = 1.65–5.0 V and VCCB = 2.3–5.5 V, with VCCA ≤ VCCB. External pull-up resistors on A1/A2 to VCCA and B1/B2 to VCCB enable translation in both directions without additional control signals.

Is TC7WPB9307FK qualified for automotive applications?

Yes, TC7WPB9307FK is AEC-Q100 Grade 1 qualified (Rev.H), certified for operation from -40°C to +125°C, and intended for automotive body electronics, chassis, and powertrain modules. Its qualification includes stress testing for temperature cycling, humidity bias, and ESD robustness per automotive reliability standards.

What is the maximum allowable voltage on the OE pin of TC7WPB9307FK?

The OE pin of TC7WPB9307FK is rated to 5.5 V absolute maximum and exhibits 5.5 V tolerance under normal operation. This allows direct connection to 5 V logic systems even when VCCA is as low as 1.8 V - eliminating the need for external level-shifting circuitry on the enable line.

Can TC7WPB9307FK be used without external pull-up resistors?

No - TC7WPB9307FK requires external pull-up resistors on each An and Bn line to their respective supplies (VCCA or VCCB) to establish defined logic levels during level-shifting operation. Without them, the device cannot translate voltages reliably; the datasheet specifies this in Section 10 (Application Circuit) and Figure 14.1.