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DS1211

The DS1211 from Dallas Semiconductor is a Nonvolatile Controller designed to convert CMOS RAMs into nonvolatile memories. It operates at 5V and features a wide industrial temperature range.

✓ Total Stock: 2,231 pcs

$ Price Range: $1.50

DS1211 Available from 1 distributor

✓ Authorised

✓ Non-Authorised

Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Optech Co.,Limited ✓ Non-Authorised Inventory information	2,231 pcs On Request	2231 pcs	On Request	1	On Request	On Request	01+	On Request	On Request

DS1211 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	Dallas Semiconductor
Mounting Type	Surface Mount
Operating Temperature	-40°C to +85°C
SVHC Present	Not Present
Supply Voltage	5V

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DS1211 Description

Short technical summary and product information.

The DS1211 Nonvolatile Controller x 8 Chip by Dallas Semiconductor is a CMOS circuit designed to provide nonvolatile memory functionality for CMOS RAMs. It monitors incoming power and automatically switches to battery backup when power fails or goes out of tolerance, ensuring data integrity.

Key features include unconditional write protection when VCC is out of tolerance and a 3-to-8 decoder for controlling up to eight CMOS RAMs. The device consumes less than 100 nA of battery current and can test battery conditions on power-up. It supports redundant batteries and provides a power-fail signal that can interrupt the processor.

Available in both 20-pin DIP (300-mil) and 20-pin SOIC (300-mil) surface mount packages, the DS1211 is suitable for industrial applications with an optional operating temperature range of -40°C to +85°C. This controller is ideal for applications requiring reliable data retention in CMOS RAM configurations.

DS1211 Quick Information

Product Type: Nonvolatile Controller

Canonical Name: DS1211 Nonvolatile Controller x 8 Chip

Subcategory: Nonvolatile Controller

DS1211 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

DS1211 Estimated Pricing

Qty	Low	High
1+	$1.50	$1.50

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

DS1211 Features

Converts CMOS RAMs into nonvolatile memories.
Automatic switch to battery on power-fail.
Consumes less than 100 nA of battery current.
Supports up to eight CMOS RAMs.
Available in DIP and SOIC packages.

DS1211 Applications

Provides nonvolatile memory functionality.
Ensures data retention during power outages.
Suitable for industrial temperature ranges.
Used with CMOS RAM configurations.

DS1211 FAQs

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

What is the supply voltage for the DS1211?

The supply voltage (VCCI) for the DS1211 is 5V.

What is the operating temperature range of the DS1211?

The DS1211 has an optional industrial operating temperature range of -40°C to +85°C.

What is the battery current consumption of the DS1211?

The DS1211 consumes less than 100 nA of battery current.

What package types are available for the DS1211?

The DS1211 is available in 20-pin DIP (300-mil) and 20-pin SOIC (300-mil) packages.

Is the DS1211 RoHS compliant?

The DS1211 is RoHS3 Compliant.

What is the Moisture Sensitivity Level (MSL) for the DS1211?

The Moisture Sensitivity Level (MSL) for the DS1211 is 1 Unlimited.

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