SN64BCT245

OCTAL BUS TRANSCEIVER

WITH 3-STATE OUTPUTS

SCBS040A – JANUARY 1990 – REVISED JANUARY 1994

3–3

POST OFFICE BOX 655303

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

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

UNIT

VIK

VCC = 4.5 V,

II = –18 mA

–1.2

V

Any A

IOH = –1 mA

2.5

3.4

VOH

Any A or B

VCC = 4.5 V

IOH = – 3 mA

2.4

3.3

V

Any B

IOH = –15 mA

2

3.1

VOL

Any A

VCC =4 5V

IOL = 24 mA

0.35

0.5

V

VOL

Any B

VCC = 4.5 V

IOL = 64 mA

0.42

0.55

V

Power up

VCC =0to2 3V

VO = 2.7 V

OE at 0 8 V

70

µA

IOZ

Power up

VCC = 0 to 2.3 V

VO = 0.5 V

OE at 0.8 V

– 0.65

mA

IOZ

Power down

VCC =1 8Vto0

VO = 2.7 V

OE at 0 8 V

70

µA

Power down

VCC = 1.8 V to 0

VO = 0.5 V

OE at 0.8 V

– 0.65

mA

I ‡

A and B

VCC =5 5V

VI =5 5V

1

mA

II‡

DIR and OE

VCC = 5.5 V,

VI = 5.5 V

0.1

mA

I

‡

A and B

VCC =5 5V

VI =2 7V

70

µA

IIH‡

DIR and OE

VCC = 5.5 V,

VI = 2.7 V

20

µA

I

A and B

VCC =5 5V

VI =0 5V

– 0.65

mA

IIL

DIR and OE

VCC = 5.5 V,

VI = 0.5 V

–1.2

mA

I

§

Any A

VCC =5 5V

VO =0

–60

–150

mA

IOS§

Any B

VCC = 5.5 V,

VO = 0

–100

– 225

mA

ICCH

A-to-B

VCC = 5.5 V

36

57

ICCL

A-to-B

VCC = 5.5 V

57

90

mA

ICCZ

VCC = 5.5 V

10

15

Ci

OE and DIR

VCC = 5 V,

VI = 2.5 V or 0.5 V

7

pF

Ci

A to B

VCC =5V

VI =2 5Vor0 5V

9

pF

Cio

B to A

VCC = 5 V,

VI = 2.5 V or 0.5 V

12

pF

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

‡ For I/O ports, the parameters IIH and IIL include the off-state output current.

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

switching characteristics (see Note 2)

PARAMETER

FROM

()

TO

(O

)

VCC = 5 V,

CL = 50 pF,

R1 = 500

Ω,

R2 = 500

Ω

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

R1 = 500

Ω,

R2 = 500

Ω

UNIT

PARAMETER

(INPUT)

(OUTPUT)

R2 = 500

Ω,

TA = 25°C

TA = – 40°C

to 85

°C

TA = 0°C

to 70

°C

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

tPLH

AorB

BorA

1

6

1

7.2

1

7

ns

tPHL

A or B

B or A

1.5

6.6

1.5

7.6

1.5

7

ns

tPZH

OE

AorB

1.5

9.4

1.5

11.2

1.5

10.9

ns

tPZL

OE

A or B

1.5

10.2

1.5

11.8

1.5

11.6

ns

tPHZ

OE

AorB

1.5

8.3

1.5

9.7

1.5

9.3

ns

tPLZ

OE

A or B

1.5

7.8

1.5

9.6

1.5

9.1

ns

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