SN64BCT25245

25-

Ω OCTAL BUS TRANSCEIVER

SCBS060A – JUNE 1990 – REVISED DECEMBER 1993

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

A port

VCC = 4.75 V,

IOH = – 3 mA

2.7

VOH

A port

VCC = 4.5 V,

IOH = – 80 mA

2

V

B port

VCC = 4.5 V,

IOH = – 3 mA

2.4

3.3

A port

VCC =4 5V

IOL = 94 mA

0.42

0.55

VOL

A port

VCC = 4.5 V

IOL = 188 mA

0.7

V

B port

VCC = 4.5 V,

IOL = 24 mA

0.35

0.5

VCC =0to2 3V(power up)

VO = 2.7 V

OE at 0 8 V

70

µA

IOZ

VCC = 0 to 2.3 V (power up)

VO = 0.5 V

OE at 0.8 V

– 0.6

mA

IOZ

VCC =1 8Vto0(power down)

VO = 2.7 V

OE at 0 8 V

70

µA

VCC = 1.8 V to 0 (power down)

VO = 0.5 V

OE at 0.8 V

– 0.6

mA

II

A and B ports

VCC =0to5 5V

VI =5 5V

0.25

mA

II

DIR and OE

VCC = 0 to 5.5 V,

VI = 5.5 V

0.1

mA

I

‡

A and B ports

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 ports

VCC =5 5V

VI =0 5V

06

mA

IIL‡

DIR and OE

VCC = 5.5 V,

VI = 0.5 V

– 0.6

mA

IOS§

B port¶

VCC = 5.5 V,

VO = 0

–60

– 150

mA

ICCL

A to B port

VCC =5 5V

48

60

mA

ICCL

B to A port

VCC = 5.5 V

95

125

mA

ICCH

A to B port

VCC =5 5V

36

46

mA

ICCH

B to A port

VCC = 5.5 V

63

80

mA

ICCZ

VCC = 5.5 V

12

16

mA

Ci

OE and DIR

VCC = 5.5 V,

VI = 2.5 V to 0.5 V

8

pF

Cio

A port

VCC =5 5V

VI =2 5Vto0 5V

18

pF

Cio

B port

VCC = 5.5 V,

VI = 2.5 V to 0.5 V

8

F

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

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

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

¶ Testing for this parameter on the A port is not recommended.