TOSHIBA TC7WZ245FU, TC7WZ245FK Technical data

TC7WZ245FU/FK

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC7WZ245FU,TC7WZ245FK

Dual Bus Transceiver

Features

• High output current : ±24mA (min) at VCC = 3V

• Super high speed operation : t

• Operation voltage range : V

= 5.0ns (max)

pd

at V

= 5V, 50 pF

CC

CC (opr)

= 1.65 to 5.5V

• 5.5-V tolerant inputs

• 5.5-V power down protection outputs

• Matches the performance of TC74LCX series when operated at

3.3-V V

CC

Note: Do not apply a signal to any pins when it is the output

mode. Damage may result.
All floating (high impedance) bus pins must have their input
levels fixed by means of pull-up or pull-down resistors.

Marking

SM8 US8

Type name

Z 245

Lot No.

WZ

245

Absolute Maximum Ratings

(Ta = 25°C)

TC7WZ245FU

TC7WZ245FK

Weight
SSOP8-P-0.65 : 0.02 g (typ.)
SSOP8-P-0.50A : 0.01 g (typ.)

Pin Assignment (top view)

(SM8)

(US8)

Characteristics Symbol Rating Unit

Supply voltage range V

DC input voltage V

DC output voltage V

Input diode current I

Output diode current I

DC output current I

DC VCC/ground current ICC ±50 mA

Power dissipation PD

Storage temperature T

Lead temperature (10 s) T

CC

IN

OUT

IK

OK

OUT

stg

L

−0.5 to 6 V

−0.5 to 6 V

−0.5 to 6 (Note 1)

−0.5 to VCC+0.5 (Note 2)

−20 mA

−20 (Note 3) mA

±50 mA

300 (SM8)
200 (US8)

−65 to 150 °C

260 °C

mW

DIR

1

A1

V

2

A2

3

GND 4

Note: 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).

Note 1: V

Note 2: High or Low state. Do not exceed I

Note 3: V

= 0V or High impedance condition

CC

< GND

OUT

of absolute maximum ratings.

OUT

VCC

8

7

G

B1

6

B2

5

1

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Truth Table

TC7WZ245FU/FK

INPUT FUNCTION

G DIR A BUS B BUS

L L OUTPUT INPUT A = B

L H INPUT OTPUT B = A

H X High Impedance Z

OUTPUT

X: Don't Care
Z: High Impedance

Operating Ranges

Characteristics Symbol Rating Unit

Supply voltage VCC

Input voltage VIN 0 to 5.5

Output voltage V

Operating temperature T

Input rise and fall time dt/dv

OUT

opr

0 to 20 ( V

0 to 10 ( V

0 to 5 ( V

1.65 to 5.5

CC =

2.5 V ± 0.2 V )

CC =

1.5 to 5.5 (Note 4)

0 to 5.5 (Note 5)

0 to V

−40 to 85 °C

CC =

(Note 6)

CC

1.80 V ± 0.15 V,

3.3 V ± 0.3 V )

5.0 V ± 0.5 V )

V

V

V

ns/V

Note 4: Data retention only

Note 5: V

0 V or High impedance condition

CC =

Note 6: High or low state

2

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Electrical Characteristics

DC Characteristics

TC7WZ245FU/FK

Characteristics Symbol Test Condition

High-Level

Input Voltage

Low-Level

Input Voltage

VIH ⎯

VIL ⎯

IOH = -100 μA

V

= V

IN

High-level output voltage VOH

or

IH

IOH = −4 mA 1.65 1.29 1.52 ⎯ 1.29 ⎯

VIL

IOH = −8 mA 2.3 1.9 2.14 ⎯ 1.9 ⎯

IOH = −16 mA 3.0 2.4 2.75 ⎯ 2.4 ⎯

IOH = −24 mA 3.0 2.3 2.62 ⎯ 2.3 ⎯

Ta = 25°C Ta = −40 to 85°C

(V)

V

CC

1.65 to

1.95

2.3 to 5.5

1.65 to

1.95

2.3 to 5.5 ⎯ ⎯

Min Typ. Max Min Max

CC

V

CC

× 0.75

V

CC

× 0.7

⎯

⎯

V

CC

× 0.75

V

CC

× 0.7

⎯ ⎯

⎯ ⎯

⎯ ⎯

VCC

× 0.25

V

× 0.3

1.65 1.55 1.65 ⎯ 1.55 ⎯

2.3 2.2 2.3 ⎯ 2.2 ⎯

3.0 2.9 3.0 ⎯ 2.9 ⎯

4.5 4.4 4.5

⎯ 4.4 ⎯

Unit

⎯

⎯

V

VCC

× 0.25

VCC

× 0.3

I

= −32 mA 4.5 3.8 4.13 ⎯ 3.8 ⎯

OH

1.65 ⎯ 0 0.1 ⎯ 0.1

2.3 ⎯ 0 0.1 ⎯ 0.1

IOH = 100 μA

3.0 ⎯ 0 0.1 ⎯ 0.1

4.5 ⎯ 0 0.1 ⎯ 0.1

V

= V

IN

Low-level output voltage VOL

or

IH

IOH = 4 mA 1.65 ⎯ 0.08 0.24 ⎯ 0.24

VIL

IOH = 8 mA 2.3 ⎯ 0.1 0.3 ⎯ 0.3

IOH = 16 mA 3.0 ⎯ 0.16 0.4 ⎯ 0.4

IOH = 24 mA 3.0 ⎯ 0.24 0.55 ⎯ 0.55

= 32 mA 4.5 ⎯ 0.25 0.55 ⎯ 0.55

I

OH

Input leakage current

3-State Output

Off-State Current

Power off leakage current I

IIN VIN = 5.5 V or GND 0 to 5.5 ⎯ ⎯ ±1 ⎯ ±10 μA

I

OZ

VIN or V

OFF

V

= VIH or V

IN

V

= VCC or GND

OUT

IL

= 5.5 V 0.0 ⎯ ⎯ 1 ⎯ 10 μA

OUT

1.65 to

5.5

⎯ ⎯ ±0.5 ⎯ ±5 μA

Quiescent supply current ICC VIN = 5.5 V or GND 1.65 to 5.5 ⎯ ⎯ 1 ⎯ 10 μA

V

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