SN74AHC245Q1

OCTAL BUS TRANSCEIVER

WITH 3STATE OUTPUTS

SCLS527A − AUGUST 2003 − REVISED APRIL 2008

3

POST OFFICE BOX 655303

recommended operating conditions (see Note 3)

MIN

MAX

UNIT

VCC

Supply voltage

2

5.5

V

VCC = 2 V

1.5

VIH

High-level input voltage

VCC = 3 V

2.1

V

VIH

High-level input voltage

VCC = 5.5 V

3.85

V

VCC = 2 V

0.5

VIL

Low-level input voltage

VCC = 3 V

0.9

V

VIL

Low-level input voltage

VCC = 5.5 V

1.65

V

VI

Input voltage

OE or DIR

0

5.5

V

VO

Output voltage

A or B

0

VCC

V

VCC = 2 V

−50

mA

IOH

High-level output current

VCC = 3.3 V ± 0.3 V

−4

mA

IOH

High-level output current

VCC = 5 V ± 0.5 V

−8

mA

VCC = 2 V

50

mA

IOL

Low-level output current

VCC = 3.3 V ± 0.3 V

4

mA

IOL

Low-level output current

VCC = 5 V ± 0.5 V

8

mA

∆t/∆v Input transition rise or fall rate

VCC = 3.3 V ± 0.3 V

100

ns/V

∆t/∆v Input transition rise or fall rate

VCC = 5 V ± 0.5 V

20

ns/V

TA

Operating free-air temperature

−40

125

°C

NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,

Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

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

otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

TA = 25°C

MIN

MAX

UNIT

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

MIN

MAX

UNIT

2 V

1.9

2

1.9

IOH = −50 mA

3 V

2.9

3

2.9

VOH

IOH = −50 mA

4.5 V

4.4

4.5

4.4

V

VOH

IOH = −4 mA

3 V

2.58

2.48

V

IOH = −8 mA

4.5 V

3.94

3.8

2 V

0.1

0.1

IOL = 50 mA

3 V

0.1

0.1

VOL

IOL = 50 mA

4.5 V

0.1

0.1

V

VOL

IOL = 4 mA

3 V

0.36

0.5

V

IOL = 8 mA

4.5 V

0.36

0.5

II

A or B inputs

VI = 5.5 V or GND

5.5 V

±0.1

±1

A

II

OE or DIR

VI = 5.5 V or GND

0 V to 5.5 V

±0.1

±1

mA

IOZ†

VO = VCC or GND,

VI (OE) = VIL or VIH

5.5 V

±0.25

±2.5

mA

ICC

VI = VCC or GND,

IO = 0

5.5 V

4

40

mA

Ci

OE or DIR

VI = VCC or GND

5 V

2.5

10

pF

Cio

A or B inputs

VI = VCC or GND

5 V

4

pF

† The parameter IOZ includes the input leakage current.