Toshiba TC7WB125FK Technical data

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TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC7WB125FK

Dual Bus Switch

The TC7WB125FK is a low on-resistance, high-speed CMOS
2-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 low level, the switch is on; when
at high level, the switch is off.

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

Features

• Operating voltage: VCC = 4.5~5.5 V

• High speed operation: t

• Ultra-low on resistance: R

• ESD performance: Machine model ≥ ±200 V

Human body model ≥ ±2000 V

• TTL level input (control input)

• Package: US8

Pin Assignment

= 0.25 ns (max)

pd

= 5 Ω (typ.)

ON

(top view)

Weight: 0.01 g (typ.)

TC7WB125FK

VCC

OE1

2OE B1

8

7 6

W B

1 2 5

1 2 3 4

A1 B2

GND

A2

5

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Truth Table

TC7WB125FK

Inputs

OE

L A port = B port

H Disconnect

Function

System Diagram

CC

IN

S

S

D

GND

stg

B1

A2

2OE

−0.5~7.0 V

−0.5~7.0 V

−0.5~7.0 V

128 mA

200 mW

±100 mA

−65~150 °C

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 IIK −50 mA

Switch I/O current I

Power dissipation P

DC VCC/GND current ICC/I

Storage temperature T

(Note)

B2

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

4.5~5.5 V

0~5.5 V

0~5.5 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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