Rochester DS1284QN

Manufacturer No:

DS1284QN

Manufacturer:

Rochester

Package:

28-LCC (J-Lead)

Description:

28 Terminations 5V 28 Pin Real Time Clocks Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer 0.032MHz

Quantity:

In Stock :9862

Looking for price or availability? Send us an RFQ and our sales team will respond quickly.

Shipping & Availability

Fast worldwide shipping via DHL, FedEx, UPS, and EMS.

Shipped from：HK Warehouse

Expected Shipping：Thu, May 7 - Fri, May 8, 2026

Lead Time：Inquire about availability

Date Code：Within 2 Years

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All components supplied by Aichiplink are sourced from trusted global suppliers and verified through strict in-house inspection and quality control procedures.

Quality Assurance

Certified in-house inspection and testing facilities ensure all components meet internationally recognized quality standards.

User Guide

Aichiplink operates certified in-house inspection and testing facilities to ensure all electronic components meet internationally recognized quality and compliance standards. Our quality management system is verified through ISO 9001 certification and industry-standard inspection procedures.

PURCHASE

Please verify all part numbers, quantities, and packaging preferences before placing your order. If substitutions are acceptable, please indicate this clearly. For time-sensitive projects, confirm estimated delivery dates and stock availability in advance. Once submitted, changes or cancellations may not be possible, especially for items marked as non-cancellable/non-returnable (NCNR). For international shipments, please ensure all import documentation is complete and accurate to avoid delays.

MEANS OF PAYMENT

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RFQ (REQUEST FOR QUOTATIONS)

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Provide target prices and acceptable alternatives, if any, to speed up the quotation process.

IMPORTANT NOTICE

Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

Step1：Prepare product

Step2：Desiccant Protection

Step3：Vacuum Packaging

Step4：Individual Package

Step5：Anti-collision Filling

Step6：Packaging Box

SHIPPING COST

1. Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).
2. Some specific products need to reach the minimum order quantity.
3. It may cost additional remote fees for delivery if you are in a remote area.

SHIPPING METHOD

Currently, our products are shipped through DHL, FedEx, SF, and UPS.

DELIVERY TIME

1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.

DS1284QN Information

Rochester DS1284QN technical specifications, attributes, parameters and parts with similar specifications to Rochester DS1284QN.

Type
Parameter

Mounting Type
Surface Mount

Package / Case
28-LCC (J-Lead)

Surface Mount
YES

Operating Temperature
-40°C~85°C

Packaging
Tube

JESD-609 Code
e0

Feature
Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer

Pbfree Code
no

Part Status
Obsolete

Moisture Sensitivity Level (MSL)
1 (Unlimited)

Type
Parameter

Number of Terminations
28

Type
Clock/Calendar

Terminal Finish
TIN LEAD

Additional Feature
ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P

Technology
CMOS

Voltage - Supply
4.5V~5.5V

Terminal Position
QUAD

Peak Reflow Temperature (Cel)
245

Supply Voltage
5V

Terminal Pitch
1.27mm

Download datasheets and manufacturer documentation for Rochester DS1284QN.

Datasheets:

rochesterelectronicsllc-ds1284-datasheets-9415.pdf

DS1284QN Overview

28-LCC (J-Lead) contains real time clocks.A Tube package is used to package time clock.Its supply voltage is 4.5V~5.5V.It is a Clock/Calendar type electrical real time clock.A part of this electronic RTC module is mounted in the way of Surface Mount.Electronic time clocks should be -40°C~85°C degrees Celsius during operation.Electronic time clocks are possible to guarantee Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer when operating.Transmission lines can be terminated with 28 terminations, which means that the RTC module that terminates the line matches its characteristic impedance.In this RTC real time clock, there is a voltage of 5V supplied to it.28 pins are present on it.2.4V~3.5V is the supply voltage of this electrical digital time clock.A memory of 50B is embedded into the RTC times for storing programs and data.A frequency of 0.032MHz should not be exceeded by real time clocks' output.1 timers are in the real time clock that outputs a signal in response to an input signal.In addition, it is characterized by ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P.