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BQ3285E中文资料具有 242x8 NVSRAM 警报唤醒功能的 RTC IC数据手册TI规格书

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厂商型号

BQ3285E

参数属性

BQ3285E 封装/外壳为24-SOIC(0.295",7.50mm 宽);包装为卷带(TR);类别为集成电路(IC)的实时时钟;产品描述:IC RTC CLK/CALENDAR PAR 24-SOIC

功能描述

具有 242x8 NVSRAM 警报唤醒功能的 RTC IC

封装外壳

24-SOIC(0.295",7.50mm 宽)

制造商

TI Texas Instruments

中文名称

德州仪器 美国德州仪器公司

数据手册

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更新时间

2025-9-23 14:19:00

人工找货

BQ3285E价格和库存,欢迎联系客服免费人工找货

BQ3285E规格书详情

描述 Description

The CMOS bq3285E/L is a low-power microprocessor peripheral providing a time-of-day clock and 100-year calendar with alarm features and battery operation. The bq3285L supports 3V systems. Other bq3285E/L features include three maskable interrupt sources, square-wave output, and 242 bytes of general nonvolatile storage.
A 32.768kHz output is available for sustaining power-management activities. Wake-up capability is provided by an alarm interrupt, which is active in battery-backup mode.
The bq3285E/L write-protects the clock, calendar, and storage registers during power failure. A backup battery then maintains data and operates the clock and calendar.
The bq3285E/L is a fully compatible real-time clock for IBM AT-compatible computers and other applications. The only external components are a 32.768kHz crystal and a backup battery.

特性 Features

• Direct clock/calendar replacement for IBM® AT-compatible computers and other applications
• Functionally compatible with the DS1285
• Closely matches MC146818A pin configuration
• 2.7–3.6V operation (bq3285L); 4.5–5.5V operation (bq3285E)
• 242 bytes of general nonvolatile storage
• 32.768kHz output for power management
• System wake-up capability—alarm interrupt output active in battery-backup mode
• Less than 0.5µA load under battery operation
• Selectable Intel or Motorola bus timing
• 14 bytes for clock/calendar and control
• BCD or binary format for clock and calendar data
• Calendar in day of the week, day of the month, months, and years, with automatic leap-year adjustment
• Time of day in seconds, minutes, and hours
• Optional daylight saving adjustment
• Three individually maskable interrupt event flags:
• Time-of-day alarm once per second to once per day
• 24-pin plastic DIP, SOIC, or SSOP

技术参数

  • 制造商编号

    :BQ3285E

  • 生产厂家

    :TI

  • Rating

    :Catalog

  • Operating temperature range(C)

    :0 to 70

供应商 型号 品牌 批号 封装 库存 备注 价格
TI/德州仪器
24+
30000
房间原装现货特价热卖,有单详谈
询价
TI
20+
24SSOP
53650
TI原装主营-可开原型号增税票
询价
TI
23+
1888
询价
TI
20+
SOP24
2960
诚信交易大量库存现货
询价
BENCHMARQ
22+
SMD
8000
原装正品支持实单
询价
TI
11+
SSOP
10
一级代理,专注军工、汽车、医疗、工业、新能源、电力
询价
TI/BB
24+
SOP-24
21322
公司原厂原装现货假一罚十!特价出售!强势库存!
询价
TI/德州仪器
23+
SOP24
3000
一级代理原厂VIP渠道,专注军工、汽车、医疗、工业、
询价
BENCHMARQ
24+
SOP
6980
原装现货,可开13%税票
询价
TI/TEXAS
23+
24-DIP
8931
询价