M54HCT245 查看數據表（PDF） - STMicroelectronics

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M54HCT245

HCT640 INVERTING, HCT643 INVERTING/NON INVERTING OCTAL BUS TRANSCEIVER (3-STATE): HCT245 NON INVERTING

STMicroelectronics 

M54/M74HCT245/640/643

RECOMMENDED OPERATING CONDITIONS

Symbol

VCC

VI

VO

Top

tr, tf

Parameter

Supply Voltage

Input Voltage

Output Voltage

Operating Temperature: M54HC Series

M74HC Series

Input Rise and Fall Time (VCC = 4.5 to 5.5V)

Value

4.5 to 5.5

0 to VCC

0 to VCC

-55 to +125

-40 to +85

0 to 500

Unit

V

V

V

oC

oC

ns

DC SPECIFICATIONS

Symbol

Parameter

VIH High Level Input

Voltage

VIL Low Level Input

Voltage

VOH High Level

Output Voltage

VOL Low Level Output

Voltage

II

Input Leakage

Current

IOZ 3 State Output

Off State Current

ICC Quiescent Supply

Current

∆ICC Additional worst

case supply

current

Test Conditions

VCC

(V)

4.5

to

5.5

TA = 25 oC

54HC and 74HC

Min. Typ. Max.

2.0

Value

-40 to 85 oC

74HC

Min. Max.

2.0

-55 to 125 oC

54HC

Min. Max.

2.0

4.5

0.8

0.8

0.8

to

5.5

VI = IO=-20 µA 4.4

4.5

VIH

or IO=-6.0 mA 4.18

VIL

4.5

4.31

4.4

4.13

4.4

4.10

VI = IO= 20 µA

0.0 0.1

0.1

0.1

4.5

VIH

or IO= 6.0 mA

0.17 0.26

0.33

0.4

VIL

5.5 VI = VCC or GND

±0.1

±1

±1

5.5 VI = VCC or GND

±0.5

±5.0

±10

5.5 VI = VCC or GND

4

40

80

5.5 Per Input pin

VI = 0.5V or

VI = 2.4V

Other Inputs at

VCC or GND

IO= 0

2.0

2.9

3.0

Unit

V

V

V

V

µA

µA

µA

mA

4/11

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