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IC41C16257

256K x 16 (4-MBIT) DYNAMIC RAM WITH FAST PAGE MODE

Integrated Circuit Solution Inc 

IC41C16257/IC41C16257S

IC41LV16257/IC41LV16257S

ELECTRICAL CHARACTERISTICS(1) (Recommended Operation Conditions unless otherwise noted.)

Symbol Parameter

Test Condition

Speed Min. Max. Unit

IIL

Input Leakage Current

Any input 0V ≤ VIN ≤ Vcc

Other inputs not under test = 0V

–10 10 µA

IIO

Output Leakage Current

Output is disabled (Hi-Z)

0V ≤ VOUT ≤ Vcc

–10 10 µA

VOH

Output High Voltage Level

IOH = –2.5 mA

2.4 —

V

VOL

Output Low Voltage Level

IOL = +2.1 mA

— 0.4

V

ICC1

Stand-by Current: TTL

RAS, LCAS, UCAS ≥ VIH

Com. 5V —

2

mA

ICC1

Stand-by Current: TTL

RAS, LCAS, UCAS ≥ VIH

Ind. 5V —

Com. 3.3V —

3 mA

1 mA

ICC2

Stand-by Current: CMOS

ICC2

Stand-by Current: CMOS

ICC3

Operating Current:

Random Read/Write(2,3,4)

Ind. 3.3V —

2 mA

RAS, LCAS, UCAS ≥ VCC – 0.2V

5V —

1 mA

RAS, LCAS, UCAS ≥ VCC – 0.2V

3.3V — 0.5 mA

RAS, LCAS, UCAS,

-35 — 230 mA

Address Cycling, tRC = tRC (min.)

-50 — 180

Average Power Supply Current

ICC4

Operating Current:

RAS = VIL, LCAS, UCAS,

Fast Page Mode(2,3,4)

Cycling tPC = tPC (min.)

Average Power Supply Current

ICC5

Refresh Current:

RAS-Only(2,3)

RAS Cycling, LCAS, UCAS ≥ VIH

tRC = tRC (min.)

Average Power Supply Current

ICC6

Refresh Current:

RAS, LCAS, UCAS Cycling

CBR(2,3,5)

tRC = tRC (min.)

Average Power Supply Current

-60 — 170

-35 — 220 mA

-50 — 170

-60 — 160

-35 — 230 mA

-50 — 180

-60 — 170

-35 — 230 mA

-50 — 180

-60 — 170

ICCS

Self Refresh current(6)

Self Refresh Mode

5V — 300 µA

3.3V — 300 µA

Notes:

1. An initial pause of 200 µs is required after power-up followed by eight RAS refresh cycles (RAS-Only or CBR) before proper device

operation is assured.The eight RAS cycles wake-up should be repeated any time the tREF refresh requirement is exceeded.

2. Dependent on cycle rates.

3. Specified values are obtained with minimum cycle time and the output open.

4. Column-address is changed once each fast page cycle.

5. Enables on-chip refresh and address counters.

6. ICCS is for S version only.

Integrated Circuit Solution Inc.

7

DR021-0A 08/11/2001

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