Mfr Part #:

DS1218

Mfr Name: Analog Devices / Maxim Integrated

The DS1218 is a nonvolatile RAM controller from Analog Devices / Maxim Integrated. It operates from 4.5V to 5.5V and is available in an 8-PDIP package.

✓ Total Stock: 2,524 pcs

$ Price Range: $1.50

DS1218 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Components Technology Group, Inc. ✓ Non-Authorised Inventory information	2,524 pcs On Request	2524 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

DS1218 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	Controllers
Manufacturer Name	Analog Devices / Maxim Integrated
Controller Type	Nonvolatile RAM
Mounting Type	Through Hole
Operating Temperature	0°C to 70°C
Supplier Device Package	8-PDIP
Supplier Package	8-PDIP
Voltage	4.5V to 5.5V

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DS1218 Description

Short technical summary and product information.

The DS1218 from Analog Devices / Maxim Integrated is a CMOS circuit designed to convert standard CMOS RAM into nonvolatile memory. It features automatic switching to battery power during power failures and unconditional write protection when VCC is out of tolerance. This controller consumes less than 100nA of battery current, making it highly efficient.

The device operates within a temperature range of 0°C to 70°C and requires an input voltage between 4.5V and 5.5V. It is available in space-saving 8-pin PDIP or 8-pin SO packages, minimizing PC board real estate requirements. The DS1218 monitors incoming power and switches to battery backup when a power-fail condition is detected, ensuring data integrity.

By combining the DS1218 with CMOS memory and lithium batteries, designers can achieve up to 10 years of nonvolatile RAM operation. The controller's precision circuitry provides reliable voltage detection and power-fail signaling, with a maximum chip enable output propagation delay of 10 ns under nominal supply conditions.

DS1218 Quick Information

Product Type: Controller

Canonical Name: DS1218 Nonvolatile RAM Controller

Subcategory: Nonvolatile RAM Controller

DS1218 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

DS1218 Estimated Pricing

Qty	Low	High
1+	$1.50	$1.50

Estimated market price range - modelled values for guidance only, not live distributor offers.

DS1218 Features

Converts CMOS RAM to nonvolatile memory.
Automatic battery switch on power failure.
Unconditional write protection when VCC is low.
Low battery current consumption under 100nA.
Available in 8-pin PDIP and SO packages.

DS1218 Applications

Data retention for critical memory.
Backup power for volatile memory.
Ensures data integrity during power dips.
Low power nonvolatile memory solutions.

DS1218 FAQs

5 frequently asked questions generated from this part’s specifications.

What is the operating voltage range for the DS1218 controller?

The DS1218 controller operates within a voltage range of 4.5V to 5.5V.

What is the operating temperature range for the DS1218?

The DS1218 operates from 0°C to 70°C.

What package type is the DS1218 controller available in?

The DS1218 is available in an 8-PDIP package and an 8-pin SO package.

How does the DS1218 protect data during power failures?

The DS1218 automatically switches to battery power when a power failure occurs and provides unconditional write protection when VCC is out of tolerance.

What is the battery current consumption of the DS1218?

The DS1218 consumes less than 100nA of battery current.