Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
XBLW DS1302N
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- XBLW DS1302N(XBLW)
- Type
- XBLW
- Minimum package
- 50 管
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- XBLW
- Electronic Component
- DS1302N(XBLW)
- Electronic Component
- 1
- Package
- DIP-8
- Electronic Component
- Real-Time Clock (RTC)
- Electronic Component
- 0.791g
- Electronic Component
- 1
- Features
- Power Management and Battery; SRAM / NVRAM; Register Latching
- Electronic Component
- BM0265621951
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 2V~5.5V
- Operating Current
- 1uA
- Interface Type
- Interface
- Crystal Oscillator Type
- Electronic Component
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
DS1302N(XBLW) 实时时钟模块产品概述
DS1302N是芯伯乐（XBLW） 推出的低成本实时时钟（RTC）器件，兼容经典DS1302通信协议，采用DIP-8直插封装，具备宽电压、超低功耗、工业级温度范围等核心优势，广泛适用于各类需要精准计时、掉电数据保持的电子系统。
一、产品定位与核心功能
DS1302N主打**「低成本、低功耗、高兼容性」**，核心功能为：
- 全量程计时：支持秒、分、时（12/24小时制）、日、周、月、年（含闰年自动调整）；
- 掉电计时保持：通过备用电源可维持计时数年（取决于电池容量）；
- 三线串行通信：仅需3根引脚即可与MCU实现数据读写，大幅节省系统资源。
二、关键性能参数解析
参数项 规格说明 应用价值 工作电压范围 2V~5.5V 适配5V单片机（51系列）、3.3V单片机（STM32），无需电平转换 备用模式工作电流 典型值1uA 纽扣电池（CR2032）可实现长期掉电计时（>5年） 工作温度范围 -40℃~+85℃（工业级） 稳定工作于严寒、高温环境，适配户外/工业场景 晶振类型 外置32.768kHz晶振 用户可根据精度需求选择晶振（±10ppm/±20ppm） 通信接口 三线串行（SCLK/I/O/CE） 通信速率1MHz，仅需3根引脚，简化系统设计三、DIP-8封装与引脚定义
DS1302N采用标准DIP-8直插封装，便于手工焊接和原型开发，引脚功能如下：
引脚号 名称 功能说明 1 VCC2 备用电源（接CR2032纽扣电池） 2 SCLK 串行时钟输入（由MCU提供） 3 I/O 双向数据传输（读/写计时数据） 4 CE 片选输入（高电平有效，启动通信） 5 GND 电源地 6 X1 晶振输入（接32.768kHz晶振一端） 7 X2 晶振输出（接32.768kHz晶振另一端） 8 VCC1 主电源（系统供电，如MCU电源）注意：VCC1与VCC2需串联1N4148二极管隔离，防止主电源掉电时备用电源反向放电。
四、典型应用场景
DS1302N的性能适配多领域需求，核心应用包括：
- 消费电子：电子闹钟、桌面时钟、智能手表（低功耗适配电池）；
- 工业控制：数据记录仪（掉电计时）、PLC模块（生产时间记录）、环境监测仪（数据时间戳）；
- 智能家居：智能门锁（开锁时间记录）、智能插座（定时开关）；
- 车载电子：车载时钟（宽温适配车内温度变化）、行车记录仪（时间戳）；
- 医疗设备：小型家用监测仪（数据标记）、输液报警器（计时提醒）。
五、应用设计注意事项
- 备用电源电路：VCC2需接纽扣电池，且与VCC1串联1N4148二极管，确保主电源掉电时供电；
- 晶振匹配：X1/X2引脚并联12pF~22pF负载电容（依晶振规格调整），保证振荡稳定；
- 抗干扰设计：SCLK/I/O/CE引脚串联100Ω电阻，或并联10nF电容，减少电磁干扰；
- 初始化操作：系统上电后需向DS1302N写入初始时间，避免计时异常。
六、品牌与可靠性说明
芯伯乐（XBLW）是国内专注于模拟时序、电源管理器件的品牌，DS1302N经过工业级可靠性测试（高低温循环、振动、老化），符合RoHS环保标准，批量供货稳定，已广泛应用于国内电子厂商的量产项目。
综上，DS1302N(XBLW)凭借低成本、低功耗、工业级性能及DIP-8封装的易用性，成为各类实时计时系统的理想选择，尤其适合原型开发和量产应用。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
Model, package, availability, and BOM fit reviewed before quotation.
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Sourcing availability signal
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Examples of how common component sourcing requests are organized.
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products
Packaged components ready for RFQ.
