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Product Detailed Parameters
- Description：IC SWITCH SPST X 2 19OHM 8SSOP
- Series：-
- Mfr：Toshiba Semiconductor and Storage
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPST
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：19Ohm
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：1.65V ~ 3.6V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：6ns, 6ns
- -3db Bandwidth：-
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：3.5pF
- Current - Leakage (IS(off)) (Max)：1µA
- Crosstalk：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：8-VFSOP (0.091", 2.30mm Width)
- Supplier Device Package：8-SSOP
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The TC7WBL3305CFK,L(CT is a low-voltage, low-capacitance CMOS dual bus switch manufactured by Toshiba Semiconductor and Storage. It operates within a supply voltage range of 1.65 V to 3.6 V and supports an operating temperature range of -40°C to 85°C for the (CT) variant. The device features two independent switches with a typical on-resistance of 6.0 Ω at 3.0 V and a typical on-capacitance of 7 pF. Unlike the TC7WBL3306CFK, this model requires the output enable (OE) input to be set low to place outputs into a high-impedance state. It includes power-down protection for inputs and electrostatic discharge protection circuits.
Feature Summary
- Low ON-resistance allows connections with minimal propagation delay time.
- Power-down protection ensures inputs remain safe during power-off states.
- All inputs are equipped with protection circuits against static discharge.
Applications
- Low voltage digital bus switching applications
- Portable electronic devices requiring low capacitance
- Data line protection in consumer electronics
Procurement Notes
Verify the specific ordering suffix (CT) to confirm the operating temperature range is limited to -40°C to 85°C, as other variants support up to 125°C. Confirm package availability in cut tape or reel formats. Ensure design compliance with absolute maximum ratings to prevent performance deterioration. Review the latest Toshiba reliability handbook for derating concepts before implementation.
Selection Notes
Select the TC7WBL3305CFK when a low active OE signal is required to disable the switch, distinguishing it from the TC7WBL3306CFK which uses a high active OE. Consider the 7 pF typical on-capacitance for high-speed signal integrity requirements. Verify that the 1.65 V to 3.6 V supply range matches the system voltage rails. Check if the -40°C to 85°C temperature range suffices for the intended environment.
Part Context
This component belongs to the TC7WBL33xx series of low-voltage, low-capacitance CMOS digital integrated circuits. It shares functional similarities with the TC7WBL3306CFK but differs in the logic level required for the output enable pin. Both devices utilize the US8 package and are designed for portable applications where low power consumption and small footprint are critical.
Replacement Considerations
The TC7WBL3306CFK is a direct substitute but requires the OE input to be set high for high-impedance state activation. Designers must invert the control logic signal when swapping between these two part numbers to maintain correct switch functionality.
FAQ
How does the output enable logic differ between TC7WBL3305CFK and TC7WBL3306CFK?
The TC7WBL3305CFK requires the OE input to be set low to place the output into the high-impedance state, whereas the TC7WBL3306CFK requires the OE input to be set high for the same function.
What is the typical on-capacitance of the TC7WBL3305CFK?
The typical on-capacitance (CI/O) is 7 pF when measured at VCC = 3.0 V.
Does the TC7WBL3305CFK,L(CT support extended temperature ranges?
No, devices with the ordering part number ending in (CT have an operating temperature range of -40°C to 85°C. Other devices in the series may support up to 125°C.
