MC74HCT245 データシートの表示（PDF） - ON Semiconductor

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MC74HCT245

Octal 3-State NonInverting Bus Transceiver with LSTTL Compatible Inputs

ON Semiconductor 

MC74HCT245A

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ MAXIMUM RATINGS

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Symbol

Parameter

Value

Unit

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ VCC DC Supply Voltage (Referenced to GND)

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Vin DC Input Voltage (Referenced to GND)

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Vout DC Output Voltage (Referenced to GND)

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Iin

DC Input Current, per Pin

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Iout DC Output Current, per Pin

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ICC DC Supply Current, VCC and GND Pins

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ PD Power Dissipation in Still Air, PDIP†

SOIC Package†

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ TSSOP Package†

– 0.5 to + 7.0

V

– 0.5 to VCC + 0.5 V

– 0.5 to VCC + 0.5 V

± 20

mA

± 35

mA

± 75

mA

750

mW

500

450

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Tstg Storage Temperature

– 65 to + 150

_C

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ TL

Lead Temperature, 1 mm from Case for 10 Secs

_C

(PDIP, SOIC, SSOP or TSSOP Package)

260

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ratings only. Functional operation above the Recommended Operating Conditions is not implied.

This device contains protection

circuitry to guard against damage

due to high static voltages or electric

fields. However, precautions must

be taken to avoid applications of any

voltage higher than maximum rated

voltages to this high−impedance cir-

cuit. For proper operation, Vin and

Vout should be constrained to the

range GND v (Vin or Vout) v VCC.

Unused inputs must always be

tied to an appropriate logic voltage

level (e.g., either GND or VCC).

Unused outputs must be left open.

Extended exposure to stresses above the Recommended Operating Conditions may affect device

reliability.

†Derating — Plastic DIP: – 10 mW/_C from 65_ to 125_C

SOIC Package: – 7 mW/_C from 65_ to 125_C

TSSOP Package: − 6.1 mW/_C from 65_ to 125_C

RECOMMENDED OPERATING CONDITIONS

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Symbol

Parameter

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ VCC

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Vin, Vout

DC Supply Voltage (Referenced to GND)

DC Input Voltage, Output Voltage

(Referenced to GND)

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ TA

Operating Temperature, All Package Types

ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tr, tf Input Rise and Fall Time (Figure 1)

Min

Max Unit

4.5

5.5

V

0

VCC

V

– 55 + 125 _C

0

500

ns

http://onsemi.com

2

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