Functional Description
• Dual SPST Bus Switch

General
The TC7WB66CFK and TC7WB67CFK are low ON-resistance, high-speed CMOS 2-bit bus switches. These bus
switches allow connections or disconnections to be made with minimal propagation delay while maintaining Low
power dissipation which is the feature of CMOS.
TC7WB66CFK requires the output enable (OE) input to be set low to place the output into the high impedance
state,whereas the TC7WB67CFK requires the output enable (OE) input to be set high to place the output into
the high impedance.
These Bus switches consist of P-MOS and N-MOS structure, meaning these devices are suitable for analog signal
transmission.
All inputs are equipped with protector circuits to protect the device from static discharge.

Features
(1) AEC-Q100 (rev.H) Grade 1 qualified (Note 1)
(2) Wide operating temperature range: Topr = -40 to 125 (Note 2)
(3) Operating voltage: VCC = 1.65 to 5.5 V
(4) ON capacitance: CI/O = 10 pF Switch On (typ.) @VCC = 5.0 V
(5) ON resistance: RON = 4 Ω (typ.) @VCC = 4.5 V, VIS = 0 V
(6) Package: US8