EM7162SP16AW Series

1Mx16 Multiplexed STRAM

9

TIMING WAVEFORM OF POWER UP

Power Up Mode

CS

200us

Normal Operation

NOTE . ( POWER UP )

1. After Vcc reaches Vcc(Min.) , wait 200us with CS high. Then you get into the normal operation.

Configuration Register Setting Table

Bit Number

Definition

Remark

15 ~ 8

Do not use in normal mode

7 ~ 4

Reserved for future use

3 ~ 2

Reduced Memory Size

Bit 3 Bit 2

Memory Size

Using Addresses

0

0

Full Array(Default)

0

1

1/2 Array

1

0

1/4 Array

1

1

1/8 Array

1 ~ 0

Temperature

Bit 1 Bit 0

Temperature Range

0

0

Auto TCSR

RMS (Reduced Memory Size)

The 16M STRAM can be operated as a 2M, 4M, 8M or 16M device. The mode is set according to configuration register

access timings, and the array size is set by configuration register bit 2 and 3. While operating in the RMS mode, the

unselected memory array may not be used.

TCSR (Temperature Cotrolled Self Refresh)

The 16M STRAM can be operated with temperature controlled self-refresh. The device internal self-refresh period is

controlled according as temperature change automatically.