SN54BCT2240, SN74BCT2240

OCTAL BUFFERS AND LINE/MOS DRIVERS

WITH 3-STATE OUTPUTS

SCBS030D – SEPTEMBER 1988 – REVISED APRIL 1994

2–4

POST OFFICE BOX 655303

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

otherwise noted)

PARAMETER

TEST CONDITIONS

SN54BCT2240

SN74BCT2240

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

MIN

TYP†

MAX

UNIT

VIK

VCC = 4.5 V,

II = –18 mA

–1.2

–1.2

V

VOH

VCC =4 5V

IOH = –1 mA

2.4

3.3

2.4

3.3

V

VOH

VCC = 4.5 V

IOH = – 12 mA

2

3.2

2

3.2

V

VOL

VCC =4 5V

IOL = 1 mA

0.15

0.5

0.15

0.5

V

VOL

VCC = 4.5 V

IOL = 12 mA

0.35

0.8

0.35

0.8

V

II

VCC = 5.5 V,

VI = 7 V

0.1

0.1

mA

IIH

VCC = 5.5 V,

VI = 2.7 V

20

20

µA

IIL

VCC = 5.5 V,

VI = 0.5 V

–1

–1

mA

IOZH

VCC = 5.5 V,

VO = 2.7 V

50

50

µA

IOZL

VCC = 5.5 V,

VO = 0.5 V

–50

–50

µA

IOS‡

VCC = 5.5 V,

VO = 0

–100

– 225

–100

– 225

mA

ICCH

VCC = 5.5 V,

Outputs open

19

32

19

32

mA

ICCL

VCC = 5.5 V,

Outputs open

46

76

46

76

mA

ICCZ

VCC = 5.5 V,

Outputs open

6

8

6

8

mA

† All typical values are at VCC = 5 V, TA = 25°C.

† Not more than one output should be tested at a time, and the duration of the test should not exceed one second.

switching characteristics over recommended ranges of supply voltage and operating free-air

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 5 V,

TA = 25°C

SN54BCT2240

SN74BCT2240

UNIT

(INPUT)

(OUTPUT)

MIN

TYP

MAX

MIN

MAX

MIN

MAX

tPLH

A

Y

0.5

3.4

4.8

0.5

6.3

0.5

5.7

ns

tPHL

A

Y

0.5

2.8

4

0.5

4.6

0.5

4.4

ns

tPZH

OE

Y

2.6

6.2

8.2

2.6

10.1

2.6

9.3

ns

tPZL

OE

Y

4.3

8.8

10.9

4.3

12.9

4.3

12.4

ns

tPHZ

OE

Y

2

5.3

7.1

2

9.2

2

8.7

ns

tPLZ

OE

Y

2.2

6.7

8.5

2.2

12.2

2.2

10.6

ns

NOTE 2: Load circuit and voltage waveforms are shown in Section 1.