TM497FBK32, TM497FBK32S 4 194 304 BY 32-BIT

TM893GBK32, TM893GBK32S 8 388 608 BY 32-BIT

EXTENDED DATA OUT DYNAMIC RAM MODULES

SMMS668 – NOVEMBER 1996

8

POST OFFICE BOX 1443

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

temperature (unless otherwise noted)

PARAMETER

TEST CONDITIONS†

’893GBK32-60

’893GBK32-70

’893GBK32-80

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 others = 0 V to VCC

± 20

± 20

± 20

µA

IO

Output current (leakage)

VCC = 5.5 V,

VO = 0 V to VCC,

CASx high

± 20

± 20

± 20

µA

ICC1

Read- or write-cycle current

(see Note 3)

VCC = 5.5 V,

Minimum cycle

896

816

736

mA

ICC2 Standby current

VIH = 2.4 V (TTL),

After one memory cycle,

RASx and CASx high

32

32

32

mA

ICC2 Standby current

VIH = VCC – 0.2 V (CMOS),

After one memory cycle,

RASx and CASx high

16

16

16

mA

ICC3

Average refresh current

(RAS only or CBR)

(see Note 3)

VCC = 5.5 V,

RASx cycling,

(RASx only);

Minimum cycle

CASx low (CBR) CASx high

RASx low after

1760

1600

1440

mA

ICC4

Average page current

(see Note 4)

VCC = 5.5 V,

tPC = MIN,

RASx low,

CASx cycling

576

496

416

mA

† For test conditions shown as MIN / MAX, use the appropriate value specified under recommended operating conditions.

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

capacitance over recommended ranges of supply voltage and operating free-air temperature,

f = 1 MHz (see Note 5)

PARAMETER

TM497FBK32

TM893GBK32

UNIT

PARAMETER

MIN

MAX

MIN

MAX

UNIT

Ci(A)

Input capacitance, address inputs

50

80

pF

Ci(R)

Input capacitance, RAS inputs

33

28

pF

Ci(C)

Input capacitance, CAS inputs

17

28

pF

Ci(W)

Input capacitance, write-enable input

66

112

pF

Co(DQ) Output capacitance on DQ pins

9

14

pF

NOTE 5: VCC = 5 V ± 0.5 V, and the bias on pins under test is 0 V.