You have entered a value in the highlighted fields below that contain invalid characters. Please revise your selection using valid characters only.

Product may not be an exact match for your search

You previously purchased this product. View in Order History



Memory NVRAM Controller, 1 RAM Controlled, 5V Supply, DIP-8

Date/Lot Code

Image is for illustrative purposes only. Please refer to product description.

Manufacturer Part No:
Order Code:
  • Enter your custom part number in the textbox above
  • Maximum Part Numbers added.
    Delete older entries to add more.

Part Number Saved

Part Number Saved

Technical Datasheet:
DS1218+   Datasheet
Supply Frame Models Link
See all Technical Docs

Product Range Selector (Multicomp Pro RJ45 Adapter)

See all from this product range

Product Overview

The DS1218+ is a non-volatile controller in 8 pin DIP package. It is a CMOS circuit which solves the application problems of converting CMOS RAM into non-volatile memory. Incoming power is monitored for an out of tolerance condition. When such a condition is detected, the chip enable output is inhibited to accomplish write protection and the battery is switched on to supply RAM with uninterrupted power. Special circuitry uses a low-leakage CMOS process which affords precise voltage detection at extremely low battery consumption. The 8-pin package keeps PC board real estate requirements to a minimum. By combining the DS1218 non-volatile controller chip with a full CMOS memory and lithium batteries, 10 years of non-volatile RAM operation can be achieved.
  • Supply voltage range is 4.5V to 5.5V
  • Operating temperature range from 0°C to 70°C
  • Unconditionally write protects RAM when VCC is out of tolerance
  • Automatically switches to battery when power fail occurs
  • Consumes less than 100nA of battery current
  • 2V to 5.5V logic 1 and -0.3V to 0.8V logic 0 voltage
  • Battery supply voltage range from 2.5V to 3.5V
  • 2mA active current, 80mA RAM current (VCCO >= VCCI -0.2V)
  • 5pF input capacitance, 7pF output capacitance, 1.5µs active-low CE pulse width
  • Maximum 2ms recovery at power-up, 500µs VCC slew rate, 4ns active-low CE propagation delay


Embedded Design & Development

Product Information

Want to see similar products? Simply select your required attributes below and hit the button ×







Multicomp Pro RJ45 Adapter

MSL 1 - Unlimited

Find similar products Choose and modify the attributes above to find similar products.

Technical Documents (2)

No Longer Manufactured


Pricing is unavailable. Please contact customer services.

Price for:
Multiple: 1 Minimum: 1
  • 1+
Quantity Price Your Price
1+ €4.28
Promotional price
Contract Price
Web only price
Web only contract price
Quantity Price Your Price

Pricing is unavailable. Please contact customer services.

No longer stocked:: No Longer Manufactured::
Add to Basket Add to Basket Pre-Order
Restricted Item
Enter Your Line Note
Total Price:
Total Price: ( )
Total Price: --