TMS626162

524288 BY 16-BIT BY 2-BANK

SYNCHRONOUS DYNAMIC RANDOM-ACCESS MEMORY

SMOS683E – FEBRUARY 1995 – REVISED APRIL 1997

15

POST OFFICE BOX 1443

power up

200-

µs interval is required (with no inputs other than CLK). After this interval, both banks of the device must be

deactivated. Eight REFR commands must be performed, and the mode register must be set to complete the

device initialization.

– 0.5 V to 4.6 V

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

– 0.5 V to 4.6 V

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

Voltage range on any pin (see Note 1)

– 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

MIN

NOM

MAX

UNIT

VCC

Supply voltage

3

3.3

3.6

V

VCCQ

Supply voltage for output drivers

3

3.3

3.6

V

VSS

Supply voltage

0

V

VSSQ

Supply voltage for output drivers

0

V

VIH

High-level input voltage

2

VCC + 0.3

V

VIL

Low-level input voltage (see Note 2)

– 0.3

0.8

V

TA

Operating free-air temperature

0

70

°C

NOTE 2: VIL MIN = 1.5 V ac (pulsewidth v 5 ns)