SN74AUCH240

OCTAL BUFFER/DRIVER

WITH 3-STATE OUTPUTS

SCES431A – MARCH 2003 – REVISED MARCH 2003

4

POST OFFICE BOX 655303

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

otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP†

MAX

UNIT

IOH = –100 µA

0.8 V to 2.7 V

VCC–0.1

IOH = –0.7 mA

0.8 V

0.55

VOH

IOH = –3 mA

1.1 V

0.8

V

VOH

IOH = –5 mA

1.4 V

1

V

IOH = –8 mA

1.65 V

1.2

IOH = –9 mA

2.3 V

1.8

IOL = 100 µA

0.8 V to 2.7 V

0.2

IOL = 0.7 mA

0.8 V

0.25

VOL

IOL = 3 mA

1.1 V

0.3

V

VOL

IOL = 5 mA

1.4 V

0.4

V

IOL = 8 mA

1.65 V

0.45

IOL = 9 mA

2.3 V

0.6

II

A and OE inputs

VI = VCC or GND

0 to 2.7 V

±5

µA

‡

VI = 0.35 V

1.1 V

10

IBHL‡

VI = 0.47 V

1.4 V

15

µA

IBHL‡

VI = 0.57 V

1.65 V

20

µA

VI = 0.7 V

2.3 V

40

§

VI = 0.8 V

1.1 V

–10

IBHH§

VI = 0.9 V

1.4 V

–15

µA

IBHH§

VI = 1.07 V

1.65 V

–20

µA

VI = 1.7 V

2.3 V

–40

¶

1.3 V

75

IBHLO¶

VI =0toVCC

1.6 V

125

µA

IBHLO¶

VI = 0 to VCC

1.95 V

175

µA

2.7 V

275

#

1.3 V

–75

IBHHO#

VI =0toVCC

1.6 V

–125

µA

IBHHO#

VI = 0 to VCC

1.95 V

–175

µA

2.7 V

–275

Ioff

VI or VO = 2.7 V

0

±10

µA

IOZ

VO = VCC or GND

2.7 V

±10

µA

ICC

VI = VCC or GND,

IO = 0

0.8 V to 2.7 V

20

µA

Ci

VI = VCC or GND

2.5 V

3

4

pF

Co

VO = VCC or GND

2.5 V

5.5

6

pF

† All typical values are at TA = 25°C.

‡ The bus-hold circuit can sink at least the minimum low sustaining current at VIL max. IBHL should be measured after lowering VIN to GND and

then raising it to VIL max.

§ The bus-hold circuit can source at least the minimum high sustaining current at VIH min. IBHH should be measured after raising VIN to VCC and

then lowering it to VIH min.

¶ An external driver must source at least IBHLO to switch this node from low to high.

# An external driver must sink at least IBHHO to switch this node from high to low.