DS1244Y-70+ by Analog Devices

256k NV SRAM with Phantom Clock

Status: Active
Series: DS1244
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

The DS1244 256k NV SRAM with a Phantom clock is a fully static nonvolatile RAM (NV SRAM) (organized as 32k words by 8 bits) with a built-in real-time clock. The DS1244 has a self-contained lithium energy source and control circuitry, which constantly monitors VCC for an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent garbled data in both the memory and real-time clock. The phantom clock provides timekeeping information for hundredths of seconds, seconds, minutes, hours, days, date, months, and years. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including correction for leap years. The phantom clock operates in either 24-hour or 12-hour format with an AM/PM indicator.

Prices starting from US$28.88


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$30.77
152
Buy Now
Logo for element14 element14 US$34.94
120
Buy Now
Logo for Schukat Electronic Schukat Electronic US$32.44
17
Buy Now
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Features

Real-Time Clock (RTC) Keeps Track of Hundredths of Seconds, Minutes, Hours, Days, Date of the Month, Months, and Years
32k x 8 NV SRAM Directly Replaces Volatile Static RAM or EEPROM
Embedded Lithium Energy Cell Maintains Calendar Operation and Retains RAM Data
Watch Function is Transparent to RAM Operation
Automatic Leap Year Compensation Valid Up to 2100
Full 10% Operating Range
Over 10 Years of Data Retention in the Absence of Power
Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time
DIP Module Only
Standard 28-Pin JEDEC Pinout
PowerCap Module Board Only Surface mountable package for direct connection to PowerCap containing battery and crystal Replaceable battery (PowerCap) Pin-for-pin compatible with DS1248P and DS1251P
Surface mountable package for direct connection to PowerCap containing battery and crystal
Replaceable battery (PowerCap)
Pin-for-pin compatible with DS1248P and DS1251P
Available in Lead-Free Package

Specifications

Interface BytewidePhantom Clock
VSUPPLY (V) 5
Date/ Time Format (hh = sec/100) YY-MM-DD/ HH:MM:SS:hh
Memory Type NV SRAM
Memory Size (Bytes) 32K
Time of Day Alarms 0
Package/Pins MOD/28PWRCP/34
BudgetaryPrice (See Notes) 20.54


DS1244Y-70+ Semiconductors - ICs by Analog Devices

RTC W/ NVSRAM 256KB HH:MM:SS:HH EDIP

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Date Format Day
Clock Format HH
Clock IC Type RTC
Supply Voltage Min 4.5V
Supply Voltage Max 5.5V
Clock IC Case Style EDIP
No. of Pins 28Pins
IC Interface Type Parallel
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC 1 2-dimethoxyethane ethylene glycol dimethyl ether (EGDME) (15-Jan-2018)

Alternative Descriptions

Rtc W/ Nvsram, 256Kb, Hh:Mm:Ss:Hh, Edip | Newark Electronics
RTC W/ NVSRAM, 256KB, HH:MM:SS:HH, EDIP | element14
RTC W/ NVSRAM, 256KB, HH: MM: SS: HH, EDIP | Farnell
RTC Par. 8Bit 32KB NV SRAM EDIP28 740mil | Schukat Electronic

Frequently Asked Questions

Where can I find additional details, specifications and documents for a DS1244Y-70+ ?

Additional datasheets, footprints and schematics for DS1244Y-70+ are listed on our Part Details page. You can also find images and similar parts to DS1244Y-70+ on this page.

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Is the DS1244Y-70+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for DS1244Y-70+ have stock available?

Authorised distributors including Newark Electronics, element14, Farnell and Schukat Electronic have stock available or on a lead time for DS1244Y-70+ .

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