Toshiba TC7WB66FK Technical data

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TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC7WB66FK

Dual Bus Switch

The TC7WB66FK is a low on-resistance, high-speed
CMOS2-bit bus switch. This bus switch allows the connections or
disconnections to be made with minimal propagation delay while
maintaining Low power dissipation which is the feature of
CMOS.

When output enable (OE) is at High level, the switch is on;
when at Low level, the switch is off.

P-MOS and N-MOS channel block means the device is suitable
for analog signal transmission.

All inputs are equipped with protector circuits to protect the
device from static discharge.

Features

TC7WB66FK

Weight: 0.01 g (typ.)

• Operating voltage: VCC = 2~5.5 V

• High speed operation: t

• Ultra-low on resistance: R

• ESD performance: Machine model ≥ ±200 V

Human body model ≥ ±2000 V

• High noise margin: V

• Power-down protection for inputs (control inputs only)

• Package: US8

Pin Assignment

VCC

8

1 2 3 4

A1

B2

OE1

7 6

W B

6 6

B1 OE2

= 0.25 ns (max)

pd

= 5 Ω (typ.)

ON

= V

NIL

NIH

(top view)

A2

5

GND

= 28% VCC (min)

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Truth Table

TC7WB66FK

Inputs

OE

H A port = B port

L Disconnect

Function

System Diagram

A1

OE1

Absolute Maximum Ratings

Characteristics Symbol Rating Unit

Power supply voltage V

Control pin input voltage V

Switch terminal I/O voltage V

Clump diode
current

Switch I/O current I

Power dissipation P

DC VCC/GND current ICC/I

Storage temperature T

Control input pin −50

Switch terminal

(Note)

CC

IN

S

I

IK

S

D

GND

stg

B1 A2

−0.5~7.0 V

−0.5~7.0 V

−0.5~VCC + 0.5 V

±50

128 mA

200 mW

±100 mA

−65~150 °C

B2

OE2

mA

Note: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even

destruction.
Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even if
the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum
ratings and the operating ranges.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test
report and estimated failure rate, etc).

Operating Ranges

Characteristics Symbol Rating Unit

Power supply voltage V

Control pin input voltage V

Switch I/O voltage V

Operating temperature T

Control pin input rise/fall time dt/dv 0~10 ns/V

(Note)

CC

IN

opr

S

2.0~5.5 V

0~5.5 V

0~VCC V

−40~85 °C

Note: The operating ranges must be maintained to ensure the normal operation of the device.

Unused inputs must be tied to either VCC or GND.

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