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

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 | |
更新时间 | 2025-9-22 20:00:00 |
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
• 2.73.6V operation (bq3285L); 4.55.5V operation (bq3285E)
• 242 bytes of general nonvolatile storage
• 32.768kHz output for power management
• System wake-up capabilityalarm 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 |
22+ |
SSOP24 |
100000 |
代理渠道/只做原装/可含税 |
询价 | ||
TI |
00+ |
SOP24 |
1290 |
全新原装进口自己库存优势 |
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/德州仪器 |
24+ |
SSOP |
178 |
现货供应 |
询价 | ||
TI |
2015+ |
SSOP24 |
19889 |
一级代理原装现货,特价热卖! |
询价 | ||
TI |
23+ |
28PLCC |
30000 |
代理全新原装现货,价格优势 |
询价 | ||
TI |
20+ |
SOP24 |
2960 |
诚信交易大量库存现货 |
询价 | ||
TI |
22+ |
24SSOP/QSOP |
9000 |
原厂渠道,现货配单 |
询价 | ||
TI |
20+ |
24SSOP |
53650 |
TI原装主营-可开原型号增税票 |
询价 | ||
TI/德州仪器 |
22+ |
SOP-24 |
30000 |
十七年VIP会员,诚信经营,一手货源,原装正品可零售! |
询价 |