SN74ABT18652 datasheet(6/11 Pages) TI

Teilenummer	SN74ABT18652

Bauteilbeschribung	SCAN TEST DEVICES WITH 18-BIT BUS TRANSCEIVERS AND REGISTERS

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SN54ABT18652, SN74ABT18652

SCAN TEST DEVICES WITH

18-BIT BUS TRANSCEIVERS AND REGISTERS

SCBS132A – AUGUST 1992 – REVISED OCTOBER 1992

6

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†

Supply voltage range, VCC

– 0.5 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range, VI: except I/O ports (see Note 1)

– 0.5 V to 7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I/O ports (see Note 1)

– 0.5 V to 5.5 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Voltage range applied to any output in the high state or power-off state, VO

– 0.5 V to 5.5 V

. . . . . . . . . . . . .

Current into any output in the low state, IO: SN54ABT18652

96 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SN74ABT18652

128 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input clamp current, IIK (VI < 0)

–18 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output clamp current, IOK (VO < 0)

– 50 mA

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maximum power dissipation at TA = 55°C (in still air) (see Note 2)

885 mW

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range

– 65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES:

1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.

2. For the SN74ABT18652 (PM package), the power derating factor for ambient temperatures greater than 55

°C is –10.5 mW/°C.

recommended operating conditions (see Note 3)

SN54ABT18652

SN74ABT18652

UNIT

MIN

MAX

MIN

MAX

UNIT

VCC

Supply voltage

4.5

5.5

4.5

5.5

V

VIH

High-level input voltage

2

V

VIL

Low-level input voltage

0.8

V

VI

Input voltage

0

VCC

0

VCC

V

IOH

High-level output current

–24

–32

mA

IOL

Low-level output current

48

64

mA

∆t/∆v

Input transition rise or fall rate

10

ns / V

TA

Operating free-air temperature

–55

125

–40

85

°C

NOTE 3: Unused or floating pins (input or I/O) must be held high or low.

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