R1QKA3618CBG datasheet(17/38 Pages) RENESAS

Part #	R1QKA3618CBG

Description	36-Mbit QDRII SRAM 4-word Burst

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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17 / 38 page

PAGE : 17

Rev. 0.09a : 2011.09.14

R1QGA36**CB* / R1QKA36**CB* Series

Absolute Maximum Ratings

Notes:

1.

All voltage is referenced to V

SS.

2.

Permanent device damage may occur if Absolute Maximum Ratings are exceeded.

Functional operation should be restricted the Operation Conditions. Exposure to higher than

recommended voltages for extended periods of time could affect device reliability.

3.

These CMOS memory circuits have been designed to meet the DC and AC specifications

shown in the tables after thermal equilibrium has been established.

4.

The following supply voltage application sequence is recommended: V

SS, VDD, VDDQ, VREF

then V

IN. Remember, according to the Absolute Maximum Ratings table, VDDQ is not to

exceed 2.5 V, whatever the instantaneous value of V

DDQ.

5.

Some method of cooling or airflow should be considered in the system. (Especially for high

frequency or ODT parts)

C

V

Unit

1, 4

0.5 to V

DDQ + 0.5

(2.5 V max.)

V

I/O

Input/output voltage

1, 4

0.5 to 2.5

V

DD

Core supply voltage

1, 4

0.5 to V

DD

V

DDQ

Output supply voltage

5

+125 (max)

Tj

Junction temperature

55 to +125

T

STG

Storage temperature

1, 4

0.5 to V

DD + 0.5

(2.5 V max.)

V

IN

Input voltage on any ball

Notes

Rating

Symbol

Parameter

Common

Recommended DC Operating Conditions

0.75

1.5

1.8

Typ

V

REF

0.1

V

DDQ + 0.3

0.95

V

DD

1.9

Max

Notes:

1. At power-up, V

DD and VDDQ are assumed to be a linear ramp from 0V to VDD(min.) or

V

DDQ(min.) within 200ms. During this time VDDQ < VDD and VIH < VDDQ.

During normal operation, V

DDQ must not exceed VDD.

2. Please pay attention to Tj not to exceed the temperature shown in the absolute maximum

ratings table due to current from V

DDQ.

3. Peak to peak AC component superimposed on V

REF may not exceed 5% of VREF.

4. These are DC test criteria. The AC V

IH / VIL levels are defined separately to measure timing

parameters.

5. Overshoot: V

IH (AC)

V

DDQ + 0.5 V for t

t

KHKH/2

Undershoot: V

IL (AC)

0.5 V for t

t

KHKH/2

During normal operation, V

IH(DC) must not exceed VDDQ and VIL(DC) must not be lower than VSS.

V

Unit

1, 2

1.4

V

DDQ

Power supply voltage -- I/O

3

0.68

V

REF

Input reference voltage -- I/O

1, 4, 5

V

REF + 0.1

V

IH (DC)

Input high voltage

1, 4, 5

0.3

V

IL (DC)

Input low voltage

1

1.7

V

DD

Power supply voltage -- core

Notes

Min

Symbol

Parameter

R10DS0161EJ0009

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