SN74ABT7820-20PN datasheet(10/18 Pages) TI

Part #	SN74ABT7820-20PN

Description	STROBED BIDIRECTIONAL FIRST-IN, FIRST-OUT MEMORY

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Manufacturer	TI [Texas Instruments]

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10 / 18 page

SN74ABT7820

512

× 18 × 2

STROBED BIDIRECTIONAL FIRST-IN, FIRST-OUT MEMORY

SCAS206D – AUGUST 1991 – REVISED APRIL 1998

10

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

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

Supply voltage range, VCC

– 0.5 V to 7 V

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

Input voltage range, VI (see Note 1)

– 0.5 V to VCC + 0.5 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

48 mA

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

Input clamp current, IIK (VI < 0)

– 18 mA

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

Output clamp current, IOK (VO < 0)

– 50 mA

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

Package thermal impedance,

θJA (see Note 2): PH package

76

°C/W

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

PN package

62

°C/W

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

Storage temperature range, Tstg

–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. The package thermal impedance is calculated in accordance with JESD 51.

recommended operating conditions

MIN

NOM

MAX

UNIT

VCC

Supply voltage

4.5

5

5.5

V

VIH

High-level input voltage

2

V

VIL

Low-level input voltage

0.8

V

VI

Input voltage

0

VCC

V

IOH

High-level output current

–12

mA

IOL

Low-level output current

24

mA

∆t/∆v

Input transition rise or fall rate

5

ns / V

TA

Operating free-air temperature

0

70

°C

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