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PCF2129T/2,518 PCF2129T
Configuration
1 options
Configuration
Electronic Component
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- NXP PCF2129T / 2, 518
- Type
- NXP
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- NXP
- Electronic Component
- PCF2129T/2,518
- Electronic Component
- 1
- Package
- SO-16-300mil
- Electronic Component
- Real-Time Clock (RTC)
- Electronic Component
- 1.096g
- Electronic Component
- 1
- Features
- Gate; Power Management and Battery;;; Programmable Clock Output; Battery;; Output; and
- Electronic Component
- BM0257268277
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 1.8V~4.2V
- Operating Current
- 700nA
- Interface Type
- I2C；SPI
- Crystal Oscillator Type
- Built-in
- Output
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
PCF2129T/2,518 产品概述
一、产品简介
PCF2129T/2,518 是恩智浦（NXP）推出的一款超低功耗实时时钟（RTC）芯片，采用 SO-16（300 mil）封装，工作电压范围宽（1.8V4.2V），工作温度覆盖工业级（-40℃+85℃）。芯片集成时钟与日历功能，并提供闹钟输出，适合需要长期精准计时与低功耗待机的嵌入式与便携式应用。
二、主要参数
- 接口类型：I²C（两线串口），并兼容常用串行控制方式（可用于与主控通信）
- 工作电压：1.8 V ~ 4.2 V
- 工作电流/静态电流（Iq）：典型 0.7 μA（700 nA），极低待机功耗，利于电池供电系统
- 晶振：内部集成晶振，减少外部元件需求
- 闹钟输出：带有闹钟/中断输出，可用于唤醒 MCU 或定时事件控制
- 工作温度：-40 ℃ ~ +85 ℃（工业级）
- 封装：SO-16，300 mil（宽度约 0.295" / 7.50 mm）
- 品牌：NXP（恩智浦）
三、功能亮点
- 超低功耗：典型静态电流仅 0.7 μA，适合对待机耗电敏感的电池供电设备；
- 集成化高：内置晶振与完整时钟/日历功能（秒、分、时、日、月、年、闰年处理），减少外部器件和校准需求；
- 可编程闹钟输出：支持按日、按周或单次闹钟事件，灵活驱动 MCU 中断或外部电路；
- 宽电压与工业温度范围：适用移动终端、工业监控及仪表等多种场景；
- 标准封装便于替换：SO-16 300 mil 兼容常见 PCB 布局，利于量产和维修。
四、典型应用
- 可穿戴设备与便携仪器（要求超低待机功耗）；
- 数据记录仪、计量仪表与远程抄表（需要长期计时与闹钟唤醒）；
- 工业控制与楼宇自动化（工业温度级、可靠性要求高）；
- 通信设备与物联网终端（外部 MCU 唤醒管理）。
五、设计与使用建议
- 电源管理：为保证最低噪声与稳定性，芯片电源端应加适当去耦电容；若系统采用备份电池，应考虑芯片在主电源断电时的备份工作模式；
- 总线布局：I²C 总线需配置合适的上拉电阻，线长与阻抗控制利于稳定通信；
- 闹钟应用：闹钟输出能直接唤醒低功耗 MCU，但建议在中断线和唤醒策略上做防抖与滤波设计；
- PCB 布局：若外围仍需外接晶体或电容，器件尽量靠近芯片布局并提供完整的接地平面以降低干扰。
六、封装与采购提示
- 封装：SO-16（300 mil），便于直插或贴片组装；
- 型号识别：订购时请确认完整料号 PCF2129T/2,518 及对应的温度与备份选项；如需替代品或批量应用，可联系供应商获取器件数据手册与可靠性资料。
本概述基于芯片主要电气与功能参数，建议在产品设计前结合官方数据手册获取详细寄存器、时序、电气图及应用电路，以确保在目标应用中的正确配置与可靠性。
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