M74HC623B1R(2001) 查看數據表（PDF） - STMicroelectronics

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M74HC623B1R
(Rev.:2001)

OCTAL BUS TRANSCEIVER WITH 3 STATE OUTPUTS (NON INVERTING)

STMicroelectronics 

PIN DESCRIPTION

PIN No

1, 19

2, 3, 4, 5, 6, 7, 8, 9

11, 12, 13, 14, 15, 16, 17, 18

10

20

SYMBOL

GBA , GAB

A1 to A8

B1 to B8

GND

VCC

IEC LOGIC SYMBOLS

HC620

M54/M74HC620/623

NAME AND FUNCTION

Direction Controls

Data Inputs/Outputs

Data Inputs/Outputs

Ground (0V)

Positive Supply Voltage

HC623

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

IO

ICC or IGND

DC Output Diode Current

DC Output Source Sink Current Per Output Pin

DC VCC or Ground Current

± 20

mA

± 35

mA

± 70

mA

PD

Power Dissipation

Tstg

Storage Temperature

TL

Lead Temperature (10 sec)

500 (*)

mW

-65 to +150

oC

300

oC

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied.

(*) 500 mW: ≅ 65 oC derate to 300 mW by 10mW/oC: 65 oC to 85 oC

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