SN54HCT645, SN74HCT645

OCTAL BUS TRANSCEIVERS

WITH 3STATE OUTPUTS

SCLS019D − MARCH 1984 − REVISED AUGUST 2003

4

POST OFFICE BOX 655303

(unless otherwise noted) (see Figure 1)

PARAMETER

FROM

TO

VCC

TA = 25°C

SN54HCT645

SN74HCT645

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

VCC

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

tpd

A or B

B or A

4.5 V

20

30

45

38

ns

tpd

A or B

B or A

5.5 V

18

27

41

34

ns

ten

OE

A or B

4.5 V

36

59

89

74

ns

ten

OE

A or B

5.5 V

30

53

80

67

ns

tt

A or B

4.5 V

17

42

63

53

ns

tt

A or B

5.5 V

14

38

57

48

ns

PARAMETER

TEST CONDITIONS

TYP

UNIT

Cpd

Power dissipation capacitance per transceiver

No load

40

pF

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design phase of development. Characteristic data and other

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change or discontinue these products without notice.