TMS44400, TMS44400P, TMS46400, TMS46400P

1048576-WORD BY 4-BIT

DYNAMIC RANDOM-ACCESS MEMORIES

SMHS562C – MAY 1995 – REVISED NOVEMBER 1996

5

POST OFFICE BOX 1443

test mode (continued)

Test Mode Cycle

Entry Cycle

Exit Cycle

Normal

Mode

RAS

CAS

W

† The states of W, data in, and address are defined by the type of cycle used during test mode.

TMS44400, TMS44400P

– 1.0 V to 7.0 V

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

TMS46400, TMS46400P

– 0.5 V to 4.6 V

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

Voltage range on any pin (see Note 1) TMS44400, TMS44400P

– 1.0 V to 7.0 V

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

TMS46400, TMS46400P

– 0.5 V to 4.6 V

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

Short-circuit output current

50 mA

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

Power dissipation

1 W

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

0

°C to 70°C

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

–55

°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.

NOTE 1: All voltage values are with respect to VSS.

recommended operating conditions

TMS44400 / P

TMS46400 / P

UNIT

MIN

NOM

MAX

MIN

NOM

MAX

UNIT

VCC

Supply voltage

4.5

5

5.5

3

3.3

3.6

V

VIH

High-level input voltage

2.4

6.5

2

VCC + 0.3

V

VIL

Low-level input voltage (see Note 2)

–1

0.8

– 0.3

0.8

V

TA

Operating free-air temperature

0

70

0

70

°C

NOTE 2: The algebraic convention, where the more negative (less positive) limit is designated as minimum, is used for logic-voltage levels only.