SN64BCT757

OCTAL BUFFER/DRIVER

WITH OPEN-COLLECTOR OUTPUTS

SCBS479 – MARCH 1993 – REVISED MAY 1994

3–3

POST OFFICE BOX 655303

recommended operating conditions (see Note 2)

MIN

NOM

MAX

UNIT

VCC

Supply voltage

4.5

5

5.5

V

VIH

High-level input voltage

2

V

VIL

Low-level input voltage

0.8

V

VOH

High-level output voltage

5.5

V

IIK

Input clamp current

–18

mA

IOL

Low-level output current

64

mA

∆t/∆VCC

Power-up ramp rate

2

µs/V

TA

Operating free-air temperature

–40

85

°C

NOTE 2: Unused or floating inputs must be held high or low.

electrical characteristics over recommended operating free-air temperature rang e (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIK

VCC = 4.5 V,

II = –18 mA

–1.2

V

IOH

VCC = 4.5 V,

VOH = 5.5 V

0.1

mA

VOL

VCC = 4.5 V,

IOL = 64 mA

0.42

0.55

V

IOZ

VCC = 0 to 2.3 V (power up),

VO = 2.7 V,

OE = 0.8 V or OE = 2 V

50

µA

IOZ

VCC = 1.8 V to 0 (power down),

VO = 2.7 V,

OE = 0.8 V or OE = 2 V

50

µA

II

VCC = 5.5 V,

VI = 7 V

0.1

mA

IIH

VCC = 5.5 V,

VI = 2.7 V

20

µA

IIL

VCC = 5.5 V,

VI = 0.5 V

–1

mA

Outputs high

34

ICC

VCC = 5.5 V,

Outputs open

Outputs low

77

mA

OE and OE inactive

10

Ci

VCC = 5 V,

VI = 2.5 V or 0.5 V

6

pF

Co

VCC = 5 V,

VO = 2.5 V or 0.5 V

4

pF

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

otherwise noted) (see Note 3)

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC = 5 V,

TA = 25°C

TA = – 40°C

to 85

°C

TA = 0°C

to 70

°C

UNIT

(INPUT)

(OUTPUT)

MIN

TYP

MAX

MIN

MAX

MIN

MAX

tPLH

A

Y

6.9

8.3

9.6

6.5

11.2

6.6

10.1

ns

tPHL

A

Y

2.4

4.2

6

1.9

7

2

6.6

ns

tPLH

2OE

Y

11

14.8

17.9

10.4

21.3

10.8

19.7

ns

tPHL

2OE

Y

2.9

4.6

6.2

2.6

7.5

2.6

6.9

ns

tPLH

1OE

Y

11.4

13.9

16.1

8.9

19.9

10

18

ns

tPHL

1OE

Y

4.4

6.1

7.8

4

9.2

4

8.5

ns

NOTE 3: Load circuits and voltage waveforms are shown in Section 1.