TM497MBK36A, TM497MBK36Q

4194304 BY 36-BIT

DYNAMIC RAM MODULE

SMMS446C – DECEMBER 1992 – REVISED JUNE 1995

5

POST OFFICE BOX 1443

– 1 V to 7 V

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

Voltage range on any pin (see Note 1)

– 1 V to 7 V

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

Short-circuit output current

50 mA

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

Power dissipation

12 W

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

0

°C to 70°C

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

–55

°C to 125°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

4.5

5

5.5

V

VIH

High-level input voltage

2.4

6.5

V

VIL

Low-level input voltage (see Note 2)

– 1

0.8

V

TA

Operating free-air temperature

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.

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

temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS

’497MBK36A-60

’497MBK36A-70

’497MBK36A-80

UNIT

PARAMETER

TEST CONDITIONS

MIN

MAX

MIN

MAX

MIN

MAX

UNIT

VOH

High-level output

voltage

IOH = – 5 mA

2.4

2.4

2.4

V

VOL

Low-level output

voltage

IOL = 4.2 mA

0.4

0.4

0.4

V

II

Input current

(leakage)

VCC = 5.5 V,

VI = 0 V to 6.5 V,

All other pins = 0 V to VCC

± 120

± 120

± 120

µA

IO

Output current

(leakage)

VCC = 5.5 V,

VO = 0 V to VCC,

CAS high

± 10

± 10

± 10

µA

ICC1

Read- or write-cycle

current (see Note 3)

VCC = 5.5 V,

Minimum cycle

1300

1160

1040

mA

ICC2 Standby current

VIH = 2.4 V (TTL),

After 1 memory cycle,

RAS and CAS high

24

24

24

mA

ICC2 Standby current

VIH = VCC – 0.2 V (CMOS),

After 1 memory cycle,

RAS and CAS high

12

12

12

mA

ICC3

Average refresh

current (RAS only

or CBR)

(see Note 3)

VCC = 5.5 V,

Minimum cycle,

RAS cycling,

CAS high (RAS only);

RAS low after CAS low (CBR)

1300

1160

1040

mA

ICC4

Average page

current (see Note 4)

VCC = 5.5 V,

tPC = MIN

RAS low,

CAS cycling

920

800

680

mA

NOTES:

3. Measured with a maximum of one address change while RAS = VIL

4. Measured with a maximum of one address change while CAS = VIH