TC74HCT688AF datasheet(3/7 Pages) TOSHIBA

部件名	TC74HCT688AF

功能描述	8-Bit Equality Comparator

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制造商	TOSHIBA [Toshiba Semiconductor]

网页	http://www.semicon.toshiba.co.jp/eng

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3 / 7 page

TC74HCT688AP/AF

2007-10-01

3

Absolute Maximum Ratings (Note 1)

Characteristics

Symbol

Rating

Unit

Supply voltage range

VCC

−0.5~7.0

V

DC input voltage

VIN

−0.5~VCC + 0.5

V

DC output voltage

VOUT

−0.5~VCC + 0.5

V

Input diode current

IIK

±20

mA

Output diode current

IOK

±20

mA

DC output current

IOUT

±25

mA

DC VCC/ground current

ICC

±50

mA

Power dissipation

PD

500 (DIP) (Note 2)/180 (SOP)

mW

Storage temperature

Tstg

−65~150

°C

Note 1: 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).

Note 2: 500 mW in the range of Ta

= −40 to 65°C. From Ta = 65 to 85°C a derating factor of −10 mW/°C should be

applied up to 300 mW.

Operating Ranges (Note)

Characteristics

Symbol

Rating

Unit

Supply voltage

VCC

4.5~5.5

V

Input voltage

VIN

0~VCC

V

Output voltage

VOUT

0~VCC

V

Operating temperature

Topr

−40~85

°C

Input rise and fall time

tr, tf

0~500

ns

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.

Electrical Characteristics

DC Characteristics

Test Condition

Ta

= 25°C

Ta

= −40~85°C

Characteristics

Symbol

VCC (V)

Min

Typ.

Max

Min

Max

Unit

High-level input

voltage

VIH

⎯

4.5~5.5

2.0

⎯

2.0

⎯

V

Low-level input

voltage

VIL

⎯

4.5~5.5

⎯

0.8

⎯

0.8

V

IOH = −20 μA

4.5

4.4

4.5

⎯

4.4

⎯

High-level output

voltage

VOH

VIN

= VIH or VIL IOH = −4 mA

4.5

4.18

4.31

⎯

4.13

⎯

V

IOL = 20 μA

4.5

⎯

0.0

0.1

⎯

0.1

Low-level output

voltage

VOL

VIN

= VIH or VIL IOL = 4 mA

4.5

⎯

0.17

0.26

⎯

0.33

V

Input leakage

current

IIN

VIN = VCC or GND

5.5

⎯

±0.1

⎯

±1.0

μA

ICC

VIN = VCC or GND

5.5

⎯

4.0

⎯

40.0

μA

Quiescent supply

current

IC

Per input: VIN = 0.5 V or 2.4 V

Other input: VCC or GND

5.5

⎯

2.0

⎯

2.9

mA

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