SN54HC623, SN74HC623

OCTAL BUS TRANSCEIVERS

WITH 3STATE OUTPUTS

SCLS149C – DECEMBER 1982 – REVISED DECEMBER 2002

3

POST OFFICE BOX 655303

recommended operating conditions (see Note 3)

SN54HC623

SN74HC623

UNIT

MIN

NOM

MAX

MIN

NOM

MAX

UNIT

VCC

Supply voltage

2

5

6

2

5

6

V

VCC = 2 V

1.5

1.5

VIH

High-level input voltage

VCC = 4.5 V

3.15

3.15

V

VIH

High level in ut voltage

VCC = 6 V

4.2

4.2

V

VCC = 2 V

0.5

0.5

VIL

Low-level input voltage

VCC = 4.5 V

1.35

1.35

V

VIL

Low level in ut voltage

VCC = 6 V

1.8

1.8

V

VI

Input voltage

0

VCC

0

VCC

V

VO

Output voltage

0

VCC

0

VCC

V

VCC = 2 V

1000

1000

∆t/∆v

Input transition rise/fall time

VCC = 4.5 V

500

500

ns

∆t/∆v

In ut transition rise/fall time

VCC = 6 V

400

400

ns

TA

Operating free-air temperature

–55

125

–40

85

°C

NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,

Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

V

TA = 25°C

SN54HC623

SN74HC623

UNIT

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

2 V

1.9

1.998

1.9

1.9

IOH = –20 µA

4.5 V

4.4

4.499

4.4

4.4

VOH

VI = VIH or VIL

IOH

20

µA

6 V

5.9

5.999

5.9

5.9

V

VOH

VI VIH or VIL

IOH = –6 mA

4.5 V

3.98

4.3

3.7

3.84

V

IOH = –7.8 mA

6 V

5.48

5.8

5.2

5.34

2 V

0.002

0.1

0.1

0.1

IOL = 20 µA

4.5 V

0.001

0.1

0.1

0.1

VOL

VI = VIH or VIL

IOL 20 µA

6 V

0.001

0.1

0.1

0.1

V

VOL

VI VIH or VIL

IOL = 6 mA

4.5 V

0.17

0.26

0.4

0.33

V

IOL = 7.8 mA

6 V

0.15

0.26

0.4

0.33

II

OEAB or

OEBA

VI = VCC or 0

6 V

±0.1

±100

±1000

±1000

nA

IOZ

A or B

VO = VCC or 0

6 V

±0.01

±0.5

±10

±5

µA

ICC

VI = VCC or 0,

IO = 0

6 V

8

160

80

µA

Ci

OEAB or

OEBA

2 V to 6 V

3

10

10

10

pF

PRODUCT PREVIEW information concerns products in the formative or

design phase of development. Characteristic data and other

specifications are design goals. Texas Instruments reserves the right to

change or discontinue these products without notice.