Datasheet

DS1321
3 of 13
MEMORY CONFIGURATIONS
The DS1321 can be configured via the MODE pin for three different arrangements of the four attached
SRAMs. The state of the MODE pin is latched at V
CCI
= V
CCTP
on power up. See Figure 1 for details.
MEMORY CONFIGURATIONS Figure 1
MODE = GND (4 BANKS WITH 1 SRAM EACH):
MODE = V
CCO
(2 BANKS WITH 2 SRAM EACH):
MODE FLOATING (1 BANK WITH 4 SRAMs):