DS1248WP-120+

$34.26

Description：IC RTC PHANTOM CHIP PAR 34PCM
Series：-

SKU:eac6f77ae1d3 Category: Real Time Clocks Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

Product Detailed Parameters

Description：IC RTC PHANTOM CHIP PAR 34PCM
Series：-
Package：Tube
Mfr：Analog Devices Inc./Maxim Integrated
Type：Phantom Time Chip
Features：NVSRAM
Memory Size：128KB
Time Format：HH:MM:SS:hh (12/24 hr)
Date Format：YY-MM-DD-dd
Interface：Parallel
Voltage - Supply：2.97V ~ 3.63V
Voltage - Supply, Battery：3V
Current - Timekeeping (Max)：7mA @ 3.3V
Operating Temperature：0°C ~ 70°C
Mounting Type：Surface Mount
Grade：-
Qualification：-
Package / Case：34-PowerCap™ Module
Supplier Device Package：34-PowerCap Module

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DS1248WP-120+

Overview

The DS1248WP-120+ is a nonvolatile SRAM integrated with a real-time clock, packaged in a 34-pin PowerCap Module. It provides 128K x 8 bits of memory and maintains timekeeping via an embedded lithium cell. The device operates on a 3.3V supply (2.97V to 3.63V) with a maximum timekeeping current of 7mA at 3.3V. It supports parallel interfaces and features automatic leap year compensation valid through 2100. Data retention exceeds 10 years without power, and the package allows surface-mount installation compatible with the DS9034PCX+ PowerCap.

Feature Summary

128K x 8 Nonvolatile SRAM with phantom clock for timekeeping
Embedded lithium energy source with over 10 years data retention
Automatic leap year compensation valid up to the year 2100
Surface-mountable 34-PowerCap™ Module package

Applications

Systems requiring persistent timekeeping during power loss
Data logging applications needing nonvolatile storage
Industrial equipment operating within 0°C to +70°C

Procurement Notes

Verify that the separate DS9034PCX+ or DS9034I-PCX+ PowerCap module is ordered, as it contains the required crystal and battery and must be mounted after soldering. Confirm the specific suffix matches the commercial temperature range requirements. Ensure the design accommodates the 34-pin PowerCap footprint and respects the absolute maximum ratings regarding negative undershoots during battery backup.

Selection Notes

Select this component when a combined RTC and NVSRAM solution is needed in a surface-mount form factor. The DS1248WP-120+ is pin-for-pin compatible with the DS1244P and DS1251P series. Choose the IND variant if operation below 0°C or above 70°C is required. Ensure the system voltage remains within the 2.97V to 3.63V range for proper write protection and battery switchover functionality.

Part Context

This part belongs to the Maxim Integrated DS1248 family of 1024K NV SRAMs with phantom clocks. It serves as a direct replacement for volatile static RAM or EEPROM in systems requiring time-stamped data retention. The PowerCap version separates the sensitive battery/crystal assembly from the main PCB to survive reflow temperatures.

Replacement Considerations

Pin-for-pin compatible replacements include the DS1244P and DS1251P series devices. Verify that the substitute part number matches the required temperature grade and voltage specifications.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.