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DS1211 The DS1211 from Analog Devices is a nonvolatile RAM controller designed to convert CMOS RAMs into nonvolatile memories. It operates within a 4.75V to 5.5V supply range and comes in a 20-pin DIP package.
Mfr Part #:

DS1211

Available from 1 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The DS1211 from Analog Devices is a nonvolatile RAM controller designed to convert CMOS RAMs into nonvolatile memories. It operates within a 4.75V to 5.5V supply range and comes in a 20-pin DIP package.
✓ Total Stock: 3,200 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
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
3,200 pcs
On Request
3200 pcs On Request 1 On Request On Request On Request On Request On Request
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DS1211 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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DS1211 Description

Short technical summary and product information.

The DS1211 by Analog Devices / Maxim Integrated is a CMOS circuit designed to provide nonvolatile operation for CMOS RAMs. It achieves this by monitoring incoming power and automatically switching to battery backup when power fails or is out of tolerance, ensuring data integrity.

 

This controller features a 3-to-8 decoder, enabling control for up to eight CMOS RAMs. It consumes less than 100 nA of battery current and includes circuitry to test battery condition on power-up. The device offers optional power-fail detection at 5% or 10% and can provide a power-fail signal to interrupt a processor.

 

Available in a 20-pin DIP package, the DS1211 is suitable for through-hole mounting. Its operating temperature range is specified as 0°C to 70°C, with a supply voltage requirement of 4.75V to 5.5V. This component is ideal for applications requiring reliable data retention in CMOS RAM modules.

DS1211 Quick Information

Product Type: Controller
Canonical Name: DS1211 Nonvolatile Controller x 8 Chip
Subcategory: Memory 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 battery switchover on power failure.
  • Write protection when VCC is out of tolerance.
  • Controls up to eight CMOS RAMs.
  • Low battery current consumption (<100 nA).

DS1211 Applications

  • Ensures data retention in CMOS RAM.
  • Provides battery backup for memory.
  • Used in systems requiring data integrity.
  • Suitable for power-sensitive applications.

DS1211 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the DS1211?

The operating voltage range for the DS1211 is 4.75V to 5.5V.

What is the operating temperature range for the DS1211?

The operating temperature range for the DS1211 is 0°C to 70°C.

What type of controller is the DS1211?

The DS1211 is a Nonvolatile RAM controller.

What package is the DS1211 available in?

The DS1211 is available in a 20-DIP (0.300", 7.62mm) package.

How does the DS1211 protect data during power loss?

The DS1211 automatically switches to battery power when incoming power is out of tolerance or fails, inhibiting writes to protect data.

What is the battery current consumption of the DS1211?

The DS1211 consumes less than 100 nA of battery current.

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