R1LV1616RBA Series

REJ03C0340-0001 Rev.0.01 2007.10.31

page 14 of 14

Data Retention Characteristics

Note 1. Typical parameter of

2. BYTE# pin supported only by TSOP and uTSOP types. BYTE#

≥ Vcc-0.2V or BYTE# ≤ 0.2V

3. Also CS2 controls address buffer, WE# buffer ,CS1# buffer ,OE# buffer ,LB# ,UB# buffer and Din buffer .If CS2

controls data retention mode,Vin levels (address, WE# ,OE#,CS1#,LB#,UB#,I/O) can be in the high impedance

state. If CS1# controls data retention mode, CS2 must be CS2

≥ Vcc-0.2V or 0V

levels (address, WE# ,OE#,CS1#,LB#,UB#,I/O) can be in the high impedance state.

Data Retention timing Waveform (1) (LB#,UB# Controlled)

Data Retention timing Waveform (2) (CS1# Controlled)

Data Retention timing Waveform (3) (CS2 Controlled)

LB#

UB#

Vcc

2.4V

2.4V

2.70V

LB# =UB#

≥ Vcc-0.2V

CS2

Vcc

0.2V

0.2V

2.70V

0V

≤ CS2 ≤ 0.2V

Vcc

CS1#

2.4V

2.4V

2.70V

CS1#

≥ Vcc-0.2V

Parameter

Symbol

MIn.

Max.

Unit

Vcc for data retention

2.0

-

3.6

V

V in

≥ 0V

(1) 0V

≤ CS2 ≤ 0.2V or

(2) CS2

≥ Vcc-0.2V,

CS1#

≥ Vcc-0.2V or

(3) LB# =UB#

≥ Vcc-0.2V,

CS2

≥ Vcc-0.2V,

CS1#

≤ 0.2V

Data retention current

-

2

6

µA

(1) 0V

≤ CS2 ≤ 0.2V or

(2) CS2

≥ Vcc-0.2V,

CS1#

≥ Vcc-0.2V or

(3) LB# =UB#

≥Vcc-0.2V,

CS2

≥ Vcc-0.2V,

CS1#

≤ 0.2V

Average value

-

4

12

µA

~+40ºC

-

-

25

µA

~+70ºC

-

-

40

µA

~+85ºC

Chip deselect to data retention time

0

-

-

ns

See retention waveform

Operation recovery time

5

-

-

ms