SN75ALS161

OCTAL GENERALPURPOSE INTERFACE BUS TRANSCEIVERS

SLLS019F − JUNE 1986 − REVISED JULY 2004

6

POST OFFICE BOX 655303

electrical characteristics over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS†

MIN

TYP‡

MAX

UNIT

VIK

Input clamp voltage

II = −18 mA

−0.8

−1.5

V

Vhys

Hysteresis voltage (VIT+ − VIT−) Bus

0.4

0.65

V

Terminal

IOH = − 800 µA, VCC = MIN

TA = 25°C

and MAX

2.7

3.5

VOH§ High-level output voltage

Terminal

IOH = − 800 µA, VCC = MIN

TA = MIN

2.7

3.5

V

VOH§ High-level output voltage

Bus

IOH = − 5.2 mA, VCC = MIN

TA = 25°C

and MAX

2.2

V

Bus

IOH = − 5.2 mA, VCC = MIN

TA = MIN

2.2

VOL

Low-level output voltage

Terminal

IOL = 16 mA,

VCC = MIN

0.3

0.5

V

VOL

Low-level output voltage

Bus

IOL = 48 mA,

VCC = MIN

0.35

0.5

V

II

Input current at maximum input

voltage

Terminal

VI = 5.5 V,

VCC = MAX

0.2

100

µA

IIH

High-level input current

Terminal and

control inputs

VI = 2.7 V,

VCC = MAX

0.1

20

µA

II(bus) = 0

2.5

3

3.7

VI/O

Voltage at GPIB I/O port

II(bus) = 0

2.5

3

3.7

V

VI/O

Voltage at GPIB I/O port

II(bus) = −12 mA

−1.5

V

IIL

Low-level input current

Terminal and

control inputs

VI = 0.5 V,

VCC = MAX

−10

−100

µA

VI(bus) = −1.5 V to 0.4 V

−1.3

VI(bus) = 0.4 V to 2.5 V

0

−3.2

II/O

Current into GPIB I/O port

Power on

VI(bus) = 2.5 V to 3.7 V

2.5

−3.2

mA

II/O

Current into GPIB I/O port

VI(bus) = 3.7 V to 5 V

0

2.5

VI(bus) = 5 V to 5.5 V

0.7

2.5

Power off

VCC = 0

VI(bus) = 0 to 2.5 V

40

µA

IOS§

Short-circuit output current

Terminal

VCC = MAX

−15

−35

−75

mA

IOS§

Short-circuit output current

Bus

VCC = MAX

−25

−50

−125

mA

ICC

Supply current

No load,

TE and DC low,

VCC = MAX

55

75

mA

CI/O

GPIB I/O port capacitance

VCC = 0 to 5 V,

VI/O = 0 to 2 V, f = 1 MHz

30

pF

† For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.

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

§ VOH and IOS apply to 3-state outputs only.