DS1556-70+ by Analog Devices
1M, Nonvolatile, Y2K-Compliant Timekeeping RAM
| Status: | Active |
|---|---|
| Series: | DS1556, DS1556P |
| RoHS: | Unknown |
Features
| Integrated NV SRAM, Real-Time Clock (RTC), Crystal, Power-Fail Control Circuit, and Lithium Energy Source |
| Clock Registers are Accessed Identically to the Static RAM; These Registers Reside in the 16 Top RAM Locations |
| Century Byte Register (i.e., Y2K Compliant) |
| Totally Nonvolatile with Over 10 Years of Operation in the Absence of Power |
| Precision Power-On Reset |
| Programmable Watchdog Timer and RTC Alarm |
| BCD-Coded Year, Month, Date, Day, Hours, Minutes, and seconds with Automatic Leap-Year Compensation Valid Up to the Year 2100 |
| Battery Voltage-Level Indicator Flag |
| Power-Fail Write Protection Allows for ±10% VCC Power-Supply Tolerance |
| Lithium Energy Source is Electrically Disconnected to Retain Freshness Until Power is Applied for the First Time |
| Also Available in Industrial Temperature Range: -40°C to +85°C |
Specifications
| Interface | Bytewide |
|---|---|
| VSUPPLY (V) | 5 |
| Date/ Time Format (hh = sec/100) | YYYY-MM-DD/ HH:MM:SS |
| Memory Type | NV SRAM |
| Memory Size (Bytes) | 128K |
| Time of Day Alarms | 1 |
| Integrated Resonator | XTAL |
| Package/Pins | MOD/32PWRCP/34 |
| BudgetaryPrice (See Notes) | 26.42 |
DS1556-70+ Semiconductors - ICs by Analog Devices
RTC W/ NVSRAM 1MB HH:MM:SS EDIP-32
| Status: | Unknown |
|---|---|
| Series: | - |
| RoHS: | Unknown |
Specifications
| Date Format | Day |
|---|---|
| Clock Format | HH |
| Clock IC Type | Alarm RTC |
| Supply Voltage Min | 4.5V |
| Supply Voltage Max | 5.5V |
| Clock IC Case Style | EDIP |
| No. of Pins | 32Pins |
| IC Interface Type | Bytewide |
| 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
| 1M, Nonvolatile, Y2K-Compliant | Analog Devices |
| RTC W/ NVSRAM, 1MB, HH: MM: SS, EDIP-32 | Farnell |
| Rtc W/ Nvsram, 1Mb, Hh:Mm:Ss, Edip-32 | Newark Electronics |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a DS1556-70+ ?
Additional datasheets, footprints and schematics for DS1556-70+ are listed on our Part Details page. You can also find images and similar parts to DS1556-70+ on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for DS1556-70+ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view DS1556-70+ price breaks, MOQs, lead times, inventory and SKUs from distributors.
Who can I contact for technical support of the product?
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Is the DS1556-70+ RoHS compliant?
This part has not been flagged as RoHS Compliant.
Which authorised distributors for DS1556-70+ have stock available?
Authorised distributors including Analog Devices, Farnell, Newark Electronics and Avnet Silica have stock available or on a lead time for DS1556-70+ .
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