R1QKA3618CBG datasheet(22/38 Pages) RENESAS

Part #	R1QKA3618CBG

Description	36-Mbit QDRII SRAM 4-word Burst

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Manufacturer	RENESAS [Renesas Technology Corp]

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22 / 38 page

PAGE : 22

Rev. 0.09a : 2011.09.14

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

Common

V

Unit

AC Operating Conditions

Typ

V

REF – 0.2

Max

Notes:

1. All voltages referenced to V

SS (GND).

During normal operation, V

DDQ must not exceed VDD.

2. These conditions are for AC functions only, not for AC parameter test.

3. 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

Control input signals may not have pulse widths less than t

KHKL (min) or operate at cycle rates

less than t

KHKH (min).

4. To maintain a valid level, the transitioning edge of the input must:

a. Sustain a constant slew rate from the current AC level through the target AC level,

V

IL (AC) or VIH (AC).

b. Reach at least the target AC level.

c.

After the AC target level is reached, continue to maintain at least the target DC level,

V

IL (DC) or VIH (DC).

1, 2, 3, 4

V

IL (AC)

Input low voltage

1, 2, 3, 4

V

REF + 0.2

V

IH (AC)

Input high voltage

Notes

Min

Symbol

Parameter

Output load conditions

Output load and voltage conditions

50

ZQ

Q

V

REF

250

Z

0 = 50

SRAM

V

DDQ / 2

= 0.75V

V

DDQ / 2

= 0.75V

V

DD

V

DDQ

V

SS

1.8V 0.1V

1.5V

R10DS0161EJ0009

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