处理中...

首页  >  产品百科  >  BQ4285LS

BQ4285LS

产品分类: 实时时钟器件(RTC)
厂牌: TEXAS INSTRUMENTS
产品描述: HH:MM:SS (12/24 hr) 912bit 2.7V 3.6V Parallel YY-MM-DD-dd 是 SOIC-24 贴片安装 7.5mm(宽度)
供应商型号: 25E-BQ4285LS
供应商: 国内现货
标准整包数: 1
TEXAS INSTRUMENTS 实时时钟器件(RTC) BQ4285LS

BQ4285LS概述

    Product Introduction: Advanced Real-Time Clock with Non-Volatile Memory
    The CMOS bq4285E/L is a low-power microprocessor peripheral designed to provide an advanced real-time clock (RTC) with a 100-year calendar and integrated alarm features, along with battery-operated functionality. Originally developed for IBM AT-compatible computers, it has been adapted for various applications requiring accurate timekeeping and data storage. The bq4285E/L combines sophisticated hardware design with comprehensive features to ensure reliable performance in diverse environments.
    Key Features:
    - Direct clock/calendar replacement for IBM AT-compatible systems and other specialized applications.
    - 114 bytes of general nonvolatile storage, ensuring robust data retention.
    - Enhanced capabilities include system wake-up via alarm interrupt output, support for both 2.7–3.6V (bq4285L) and 4.5–5.5V (bq4285E) operation, and a 32kHz output for power management.
    - Automatic backup and write-protect control for external SRAM, making it functionally compatible with the DS1285.
    - Ultra-low power consumption (<0.5 µA load under battery operation).
    Application Areas:
    The bq4285E/L is ideal for applications requiring precision timekeeping, such as industrial automation, medical equipment, telecommunications, and portable electronics. It is also well-suited for consumer devices like smartwatches and automotive navigation systems.
    Technical Parameters
    | Parameter | Value |

    | Operating Voltage | 2.7–3.6V (bq4285L), 4.5–5.5V (bq4285E) |
    | Backup Cell Voltage | 3V |
    | Power Consumption | <0.5 µA |
    | Clock Accuracy | ±20 ppm |
    | Storage Capacity | 114 bytes |
    | Address Range | 14 bytes for clock/calendar; 114 bytes NV storage |
    | Temperature Range | -40°C to +85°C |
    | Oscillator Frequency | 32.768 kHz |
    Product Features and Advantages
    The bq4285E/L excels due to its versatile design and robust capabilities:
    1. Automatic Backup Mechanism: Ensures data integrity by switching to a backup battery when main power fails, protecting critical information.
    2. Highly Accurate Timekeeping: Supports leap year adjustments and offers precise time formatting in both BCD and binary formats.
    3. Flexible Power Management: Offers multiple power modes, allowing devices to maintain essential functions during low-power states.
    4. Compatibility: Fully backward compatible with legacy systems while offering improved features compared to predecessors like the DS1285.
    5. Compact Design: The device integrates seamlessly into compact designs thanks to its 24-pin DIP/SOIC package.
    Its ability to generate periodic interrupts, handle alarms, and provide a square-wave output makes it a standout choice for complex embedded applications.
    Application Case Studies and Usage Tips
    Case Study 1: Industrial Automation
    In manufacturing plants, the bq4285E/L ensures synchronized operations by maintaining accurate timestamps even during power outages. To maximize reliability:
    - Always implement a secondary power source.
    - Regularly verify the backup battery charge level.
    Case Study 2: Consumer Electronics
    For wearable devices, the device’s low power consumption extends battery life significantly. Recommended practices include:
    - Using advanced sleep modes to minimize current draw.
    - Testing firmware for seamless integration with the bq4285E/L’s interrupt mechanism.
    Compatibility and Support
    The bq4285E/L integrates seamlessly with existing architectures through standard communication protocols. Its comp

BQ4285LS参数

参数
时间格式 HH:MM:SS (12/24 hr)
接口类型 Parallel
存储容量 912bit
电池备用开关
最大工作供电电压 3.6V
最小工作供电电压 2.7V
日期格式 YY-MM-DD-dd
长*宽*高 7.5mm(宽度)
通用封装 SOIC-24
安装方式 贴片安装
零件状态 停产
包装方式 管装

BQ4285LS厂商介绍

Texas Instruments(简称TI),是一家总部位于美国德克萨斯州达拉斯的全球性半导体设计与制造公司,成立于1930年。TI是全球领先的模拟技术、数字信号处理和微控制器(MCU)领域的供应商。

主营产品分类:
1. 模拟产品:包括电源管理、信号链和接口产品,广泛应用于工业、汽车、医疗等领域。
2. 嵌入式处理:包括微控制器(MCU)、数字信号处理器(DSP)和处理器,广泛应用于消费电子、工业控制、汽车电子等领域。
3. 无线产品:包括无线通信模块和解决方案,应用于物联网、智能城市、智能家居等领域。
4. 计算器:TI也是知名的计算器制造商,拥有多款科学计算器和图形计算器产品。

应用领域:
TI的产品和技术广泛应用于通信、计算机、消费电子、汽车、工业、医疗等多个领域。

优势:
1. 技术创新:TI在模拟、嵌入式处理和无线通信领域拥有强大的研发实力和专利技术。
2. 产品多样性:TI提供广泛的产品线,满足不同客户的需求。
3. 客户支持:TI在全球设有技术支持中心,为客户提供专业的技术支持和解决方案。
4. 供应链管理:TI拥有强大的供应链管理能力,确保产品的稳定供应和交付。

BQ4285LS数据手册

厂牌 PDF简要描述 下载
TEXAS INSTRUMENTS 实时时钟器件(RTC) TEXAS INSTRUMENTS BQ4285LS BQ4285LS数据手册

BQ4285LS封装设计

查看详情并下载
Symbol
Footprint
3D Model
价格梯度 中国香港交货 内地交货(含增值税)
10+ ¥ 13.4892
5000+ ¥ 12.8854
10000+ ¥ 12.4186
库存: 747
起订量: 742 增量: 0
交货地:
最小起订量为:10
合计: ¥ 134.89
直接购买
加入购物车