DS1321 Maxim, DS1321 Datasheet - Page 3

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DS1321

Manufacturer Part Number
DS1321
Description
The DS1321 Flexible Nonvolatile Controller with Lithium Battery Monitor is a CMOS circuit which solves the application problem of converting CMOS SRAMs into nonvolatile memory
Manufacturer
Maxim
Datasheet

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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
MEMORY CONFIGURATIONS Figure 1
MODE = GND (4 BANKS WITH 1 SRAM EACH):
MODE = V
MODE FLOATING (1 BANK WITH 4 SRAMs):
CCO
(2 BANKS WITH 2 SRAM EACH):
3 of 12
CCI
= V
CCTP
on power up. See Figure 1 for details.

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