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MXD1210 fiches techniques PDF

Maxim Integrated - Nonvolatile RAM Controller

Numéro de référence MXD1210
Description Nonvolatile RAM Controller
Fabricant Maxim Integrated 
Logo Maxim Integrated 





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MXD1210 fiche technique
19-0154; Rev 2; 11/05
Nonvolatile RAM Controller
General Description
The MXD1210 nonvolatile RAM controller is a very low-
power CMOS circuit that converts standard (volatile)
CMOS RAM into nonvolatile memory. It also continually
monitors the power supply to provide RAM write protec-
tion when power to the RAM is in a marginal (out-of-tol-
erance) condition. When the power supply begins to
fail, the RAM is write-protected, and the device switch-
es to battery-backup mode.
Microprocessor Systems
Computers
Embedded Systems
Applications
Pin Configurations
TOP VIEW
VCCO 1
VBATT1 2
TOL 3
GND 4
MXD1210
8 VCCI
7 VBATT2
6 CEO
5 CE
DIP/SO
Features
Battery Backup
Memory Write Protection
230µA Operating Mode Quiescent Current
2nA Backup Mode Quiescent Current
Battery Freshness Seal
Optional Redundant Battery
Low Forward-Voltage Drop on VCC Supply Switch
5% or 10% Power-Fail Detection Options
Tests Battery Condition During Power-Up
8-Pin SO Available
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MXD1210C/D
0°C to +70°C
Dice*
MXD1210CPA
0°C to +70°C
8 PDIP
MXD1210CSA
0°C to +70°C
8 SO
MXD1210CWE
0°C to +70°C
16 Wide SO
MXD1210EPA
-40°C to +85°C
8 PDIP
MXD1210ESA
-40°C to +85°C
8 SO
MXD1210EWE
-40°C to +85°C
16 Wide SO
MXD1210MJA
-55°C to +125°C
8 CERDIP
*Contact factory for dice specifications.
Devices in PDIP and SO packages are available in both lead-
ed and lead-free packaging. Specify lead free by adding the +
symbol at the end of the part number when ordering. Lead free
not available for CERDIP package.
Typical Operating Circuit
N.C. 1
VCCO 2
N.C. 3
VBATT1 4
N.C. 5
TOL 6
N.C. 7
GND 8
MXD1210
16 N.C.
15 VCCI
14 N.C.
13 VBATT2
12 N.C.
11 CEO
10 N.C.
9 CE
WIDE SO
+5V VCCI 8
1
2
MXD1210 7
CE 5
FROM
DECODER
4
6
3
VCCO
VBATT1
VBATT2
VCC
CMOS
RAM
CE
GND
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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