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ADI/LINEAR DS1388Z-33+T&R DS1388Z
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ADI(Analog Devices) / LINEAR DS1388Z-33+T&R
- Type
- ADI/LINEAR
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ADI(Analog Devices) / LINEAR
- Electronic Component
- DS1388Z-33+T&R
- Electronic Component
- 1
- Package
- SO-8
- Electronic Component
- Real-Time Clock (RTC)
- Electronic Component
- 0.113g
- Electronic Component
- 1
- Features
- Gate; Power Management and Battery;; SRAM / NVRAM
- Electronic Component
- BM0264802198
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 2.97V~3.63V
- Operating Current
- 250uA
- Interface Type
- I2C
- Crystal Oscillator Type
- Electronic Component
- Output
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
DS1388Z-33+T&R 产品概述
一、概述
DS1388Z-33+T&R 是一款面向嵌入式与便携设备的低功耗实时时钟（RTC）芯片，品牌归属 ADI/LINEAR。器件采用外置晶振（建议使用 32.768 kHz 晶体），通过 I2C 总线与主控器通信，支持星期/日/月/年 与 时:分:秒:百秒 的时间格式，并提供闹钟输出与看门狗定时器等实用功能。器件为 NSOIC-8（SO-8）封装，-33 表示 3.3V 级别，后缀 T&R 表示卷盘带包装，适合量产贴片。
二、主要规格与功能特点
- 接口类型：I2C（标准时序，需外部上拉电阻）；
- 晶振类型：外置（建议 32.768 kHz）；
- 工作电压：2.97 V ～ 3.63 V（典型 3.3 V）；
- 工作电流：约 250 µA；静态电流（Iq）：约 100 µA；
- 工作温度：-40 ℃ ～ +85 ℃；
- 闹钟输出：有（用于产生中断/定时唤醒，配合主机中断线使用）；
- 看门狗定时器：可配置、用于系统安全复位或告警；
- 备份电源管理与电池充电：集成备份管理电路，支持外接后备电池/电容并提供充电策略；
- 温度补偿：内部温度补偿机制以提高计时精度；
- 片内存储：内置 SRAM/NVRAM，用于保存配置与关键参数，掉电数据保持；
- 封装：SO-8 / NSOIC-8，适合自动化贴片与工业环境。
三、应用建议与设计要点
- 晶振选择：建议使用标准 32.768 kHz 晶体并按厂家推荐的负载电容布板，以保证漂移与启动稳定性；
- 电源与退相干：在 VCC 与 GND 之间放置 0.1 µF 陶瓷旁路电容，电源轨尽量靠近芯片布线；
- I2C 接入：SDA/SCL 线需外接上拉电阻（常见 2.2 kΩ～10 kΩ），并在总线上实现适当的总线仲裁与滤波；
- 闹钟/中断输出：闹钟引脚通常与主控中断输入直接连接，若需要多设备共用，建议采用开漏输出并加上上拉电阻；
- 备份电源：设计时明确备用电源切换策略（纽扣电池或超级电容），合理配置充电电路与保护元件；
- 看门狗使用：将看门狗用于关键任务监控，配置适当超时与复位策略，避免误触发造成系统不稳定。
四、典型应用场景
- 数据记录仪、计量表与工业控制器的时间戳与日志；
- 网络/通信设备的实时时间维护与定时唤醒；
- 便携式仪器、医疗设备与物联网终端的低功耗时间管理；
- 需掉电保持与掉电记忆的嵌入式系统。
五、订购与封装信息
产品型号：DS1388Z-33+T&R（3.3 V 版本，卷带包装）；封装形式：SO-8（NSOIC-8）。采购时请确认器件批次与温度等级，若用于量产建议索取完整数据手册以便遵循推荐应用电路与封装尺寸图。
如需进一步的引脚说明、寄存器地图或典型电路参考，可提供更多设计背景，我将给出更详细的应用指导。
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