参数资料
| 型号： | DS1339AU+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/19页 |
| 文件大小： | 0K |
| 描述： | IC RTC I2C W/ALARM 8USOP |
| 标准包装： | 3,000 |
| 类型： | 时钟/日历 |
| 特点： | 警报器，闰年，方波输出，涓流充电器 |
| 时间格式： | HH:MM:SS（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.71 V ~ 5.5 V |
| 电压 - 电源，电池： | 1.3 V ~ 3.7 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 带卷 (TR) |
DS1339A
Low-Current, I2C, Serial Real-Time Clock
4
Maxim Integrated
WARNING: Under no circumstances are negative undershoots, of any amplitude, allowed when device is in battery-backup
mode.
Note 2: Limits are 100% production tested at TA = +25NC and TA = +85NC. Limits over the operating temperature range and rel-
evant supply voltage range are guaranteed by design and characterization. Typical values are not guaranteed.
Note 3: SCL only.
Note 4: SDA and SQW/INT.
Note 5: ICCA—SCL at fSCL max, VIL = 0.0V, VIH = VCC, trickle charger disabled.
Note 6: Specified with the I2C bus inactive, VIL = 0.0V, VIH = VCC, trickle charger disabled.
Note 7: VCC must be less than 3.63V if the 200I resistor is selected.
Note 8: Using recommended crystal on X1 and X2.
Note 9: After this period, the first clock pulse is generated.
Note 10: A device must internally provide a hold time of at least 300ns for the SDA signal (referred to the VIHMIN of the SCL signal)
to bridge the undefined region of the falling edge of SCL.
Note 11: The maximum tHD:DAT need only be met if the device does not stretch the low period (tLOW) of the SCL signal.
Note 12: A fast-mode device can be used in a standard-mode system, but the requirement tSU:DAT R to 250ns must then be met.
This is automatically the case if the device does not stretch the low period of the SCL signal. If such a device does stretch
the low period of the SCL signal, it must output the next data bit to the SDA line tR(MAX) + tSU:DAT = 1000 + 250 = 1250ns
before the SCL line is released.
Note 13: CB—total capacitance of one bus line in pF.
Note 14: Guaranteed by design; not production tested.
Note 15: The parameter tOSF is the period of time the oscillator must be stopped for the OSF flag to be set.
Note 16: The DS1339A can detect any single SCL clock held low longer than tTIMEOUTMIN. The device’s I2C interface is in reset
state and can receive a new START condition when SCL is held low for at least tTIMEOUTMAX. Once the device detects
this condition, the SDA output is released. The oscillator must be running for this function to work.
Note 17: This delay applies only if the oscillator is running. If the oscillator is disabled or stopped, no power-up delay occurs.
AC ELECTRICAL CHARACTERISTICS (continued)
POWER-UP/DOWN CHARACTERISTICS
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Capacitive Load for Each Bus
Line
CB
(Note 13)
400
pF
I/O Capacitance (SDA, SCL)
CI/O
(Note 14)
10
pF
Oscillator Stop Flag (OSF) Delay
tOSF
(Note 15)
100
ms
Timeout Interval
tTIMEOUT (Note 16)
25
35
ms
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Recovery at Power-Up
tREC
(Note 17)
1
2
ms
VCC Slew Rate; VPF to 0V
tVCCF
1/50
V/Fs
VCC Slew Rate; 0V to VPF
tVCCR
1/1
V/Fs
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相关代理商/技术参数 |
参数描述 |
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| DS1339BU+ | 功能描述:实时时钟 SERIAL RTC 1.8-3.3V C 1.8-3.3V HESR USOP RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1339BU+T | 制造商:Maxim Integrated Products 功能描述:SERIAL RTC 1.8-3.3V HESR USOP TRL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC I2C W/ALARM 8UMAX |
| DS1339C-2 | 功能描述:实时时钟 I2C Serial RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1339C-2- | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:I2C Serial Real-Time Clock |
| DS1339C-2# | 功能描述:实时时钟 I2C Serial RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
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