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參數(shù)資料
| 型號： | DS1672-2 |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDIP8 |
| 封裝： | DIP-8 |
| 文件頁數(shù)： | 3/13頁 |
| 文件大?。?/td> | 104K |
| 代理商： | DS1672-2 |
DS1672
11 of 13
POWER-UP DOWN CHARACTERISTICS
(-40
°C to +85°C)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
VCC Detect to RST (VCC Falling)
tRPD
10
s
VCC Detect to RST (VCC Rising)
tRPU
250
ms
6
VCC Fall Time; VPF(MAX) to VPF(MIN)
tF
300
s
VCC Rise Time; VPF(MIN) to VPF(MAX)
tR
0
s
WARNING:
Under no circumstances are negative undershoots, of any amplitude, allowed when device is in write
protection.
NOTES:
1. All voltages are referenced to ground.
2. After this period, the first clock pulse is generated.
3. A device must internally provide a hold time of at least 300 ns for the SDA signal (referenced to the
VIHMIN of the SCL signal) in order to bridge the undefined region of the falling edge of SCL.
4. The maximum tHD:DAT has only to be met if the device does not stretch the LOW period (tLOW) of the
SCL signal.
5. CB - total capacitance of one bus line in pF.
6. If the EOSC bit in the Control Register is set to logic 1, tRPU is equal to 250 ms plus the start-up time
of the crystal oscillator.
7. ICCA specified with SCL clocking at max frequency (400 kHz).
8. ICCS specified with VCC = 3.3V and SDA, SCL=3.3V.
9. ICCS specified with VCC = 3.0V and SDA, SCL=3.0V.
10. ICCS specified with VCC = 2.0V and SDA, SCL=2.0V.
11. A fast mode device can be used in a standard mode system, but the requirement tSU:DAT >= to 250 ns
must then be met. This will automatically be 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 = 1250 ns before the SCL line is released.
12. IOSC specified with VCC = 0V, VBACKUP =3.6V and oscillator enabled.
13. IBACKUP specified with VCC = 0V, VBACKUP =3.6V and oscillator disabled.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1672-33 | 0 TIMER(S), REAL TIME CLOCK, PDIP8 |
| DS1672S-33 | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| DS1672-3 | 0 TIMER(S), REAL TIME CLOCK, PDIP8 |
| DS1672U-2 | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| DS1672U-33 | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1672-2+ | 功能描述:實時時鐘 I2C 32-Bit Binary Counter RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1672-3 | 功能描述:實時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1672-3+ | 功能描述:實時時鐘 I2C 32-Bit Binary Counter RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS167233 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:I2C 32-Bit Binary Counter RTC |
| DS1672-33 | 功能描述:實時時鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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