HC646 datasheet(5/12 Pages) STMICROELECTRONICS

Part #	HC646

Description	HC648 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE, INV. HC646 OCTAL BUS TRANSCEIVER/REGISTER 3-STATE

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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ABSOLUTE MAXIMUM RATINGS

Symbol

Parameter

Value

Unit

VCC

Supply Voltage

-0.5 to +7

V

VI

DC Input Voltage

-0.5 to VCC + 0.5

V

VO

DC Output Voltage

-0.5 to VCC + 0.5

V

IIK

DC Input Diode Current

± 20

mA

IOK

DC Output Diode Current

± 20

mA

IO

DC Output Source Sink Current Per Output Pin

± 35

mA

ICC or IGND

DC VCC or Ground Current

± 70

mA

PD

Power Dissipation

500 (*)

mW

Tstg

Storage Temperature

-65 to +150

oC

TL

Lead Temperature (10 sec)

300

oC

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied.

(*) 500 mW:

≅ 65 oC derate to 300 mW by 10mW/oC: 65 oCto 85 oC

RECOMMENDED OPERATING CONDITIONS

Symbol

Parameter

Value

Unit

VCC

Supply Voltage

2 to 6

V

VI

Input Voltage

0 to VCC

V

VO

Output Voltage

0 to VCC

V

Top

Operating Temperature

-40 to +85

oC

tr,tf

Input Rise and Fall Time

VCC = 2 V

0 to 1000

ns

VCC = 4.5 V

0 to 500

VCC = 6 V

0 to 400

M74HC646/648

5/12

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