K4X56163PE-L(F)G

March 2004

9

Mobile-DDR SDRAM

Figure.3 EMRS code and TCSR , PASR

Note :

1. In order to save power consumption, Mobile DDR SDRAM includes PASR option.

2. Mobile DDR SDRAM supports three kinds of PASR in self refresh mode; Full Array, 1/2 Array, 1/4 Array.

Partial Self Refresh Area

Partial Array Self Refresh (PASR )

BA1=0

BA0=0

BA1=0

BA0=1

BA1=1

BA0=1

BA1=1

BA0=0

BA1=0

BA0=0

BA1=0

BA0=1

BA1=1

BA0=1

BA1=1

BA0=0

BA1=0

BA0=0

BA1=0

BA0=1

BA1=1

BA0=1

BA1=1

BA0=0

Note :

1. In order to save power consumption, Mobile DDR SDRAM includes the internal temperature sensor and control units to control the

self refresh cycle automatically according to the two temperature range ; Max. 40

°C, Max. 85 °C.

2. If the EMRS for external TCSR is issued by the controller, this EMRS code for TCSR is ignored.

Temperature Range

Self Refresh Current (Icc 6)

Unit

Full Array

1/2 Array

1/4 Array

Max. 40

°C

150

125

115

uA

Max. 85

°C

400

300

250

Internal Temperature Compensated Self Refresh (TCSR)

- Full Array

- 1/2 Array

- 1/4 Array