S71AL016D SPANSION [SPANSION], S71AL016D Datasheet - Page 62

• Manufacturer Part Number: S71AL016D
• Description: Stacked Multi-Chip Product (MCP) Flash Memory and RAM
• Manufacturer: SPANSION [SPANSION]

Note: Page mode operation is a method of addressing the SRAM to save operating current. The internal
organization of the SRAM is optimized to allow this unique operating mode to be used as a valuable power
saving feature.
The only thing that needs to be done is to address the SRAM in a manner that the internal page is left open
and 16-bit words of data are read from the open page. By treating addresses A0-A3 as the least significant
bits and addressing the 16 words within the open page, power is reduced to the page mode value which is
considerably lower than standard operating currents for low power SRAMs.
Timing Test Conditions
62
CE1#
CE2
Word Address (A0 - A3)
OE#
Page Address (A4 - A16)
LB#, UB#
Input Pulse Level
Input Rise and Fall Time
Input and Output Timing Reference Levels
Output Load
Operating Temperature
Figure 1. Power Savings with Page Mode (WE# = V
Item
Word 1
2Mbit Type 1 SRAM
P r e l i m i n a r y
Word 2
Open page
0.1V
...
-40 to +85°C
CL = 30pF
CC
0.5 V
5ns
to 0.9 V
CC
Word 16
IH
CC
)
SRAM_Type01_03A0 August 4, 2004