MXD1210 View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MXD1210

Nonvolatile RAM Controller

Maxim Integrated 

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

6

FROM

DECODER

4

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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