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參數資料
| 型號： | DS1672S-2 |
| 英文描述： | Low Voltage Serial Timekeeping Chip |
| 中文描述： | 低電壓串行時鐘芯片 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 104K |
| 代理商： | DS1672S-2 |
1 of 13
082800
FEATURES
32-bit counter
2-wire serial interface
Automatic power-fail detect and switch
circuitry
Power-fail reset output
Low-voltage oscillator operation (1.3V min.)
Trickle charge capability
ORDERING INFORMATION
DS1672X-X
2
2.0V operation
3
3.0V operation
33 3.3V operation
blank
S
U
8-pin DIP
8-pin SOIC
8-pin μSOP
PIN ASSIGNMENT
PIN DESCRIPTION
V
CC,
V
BACKUP
GND
X1, X2
SCL
SDA
RST
- Power Supply Inputs
- Ground
- 32.768 kHz crystal pins
- Serial clock
- Serial data
- Reset output
DESCRIPTION
The DS1672 incorporates a 32-bit counter and power monitoring functions. The 32-bit counter is
designed to count seconds and can be used to derive time of day, week, month, month, and year by using
a software algorithm. A precision temperature-compensated reference and comparator circuit monitors
the status of V
CC
. When an out-of-tolerance condition occurs, an internal power-fail signal is generated
which forces the reset to the active state. When V
CC
returns to an in-tolerance condition, the reset signal
is kept in the active state for 250 ms to allow the power supply and processor to stabilize.
OPERATION
The block diagram in Figure 1 shows the main elements of the DS1672. As shown, communications to
and from the DS1672 occur serially over a 2-wire bi-directional bus. The DS1672 operates as a slave
device on the serial bus. Access is obtained by implementing a START condition and providing a device
identification code followed by a register address. Subsequent registers can be accessed sequentially until
a STOP condition is executed.
DS1672
Low Voltage Serial Timekeeping Chip
PRELIMINARY
1
2
3
4
8
7
6
5
V
CC
RST
SCL
SDA
X1
X2
V
BACKUP
GND
相關PDF資料 |
PDF描述 |
|---|---|
| DS1672S-3 | Low Voltage Serial Timekeeping Chip |
| DS1672S-33 | Low Voltage Serial Timekeeping Chip |
| DS1682 | Total Elapsed Time Recorder with Alarm |
| DS1682S | Total Elapsed Time Recorder with Alarm |
| DS1682X | Total Elapsed Time Recorder with Alarm |
相關代理商/技術參數 |
參數描述 |
|---|---|
| DS1672S-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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1672S-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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1672S-3/T&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 8SOIC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC TIMEKEEPER 3V 32-BIT 8-SOIC |
| DS1672S-3/T&R | 功能描述:IC TIMEKEEPER 3V 32-BIT 8-SOIC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 實時時鐘 系列:- 產品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:時鐘/日歷 特點:警報器，閏年，SRAM 存儲容量:- 時間格式:HH:MM:SS（12/24 小時） 數據格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應商設備封裝:8-TDFN EP 包裝:管件 |
| DS1672S-3/TR | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:I2C 32-Bit Binary Counter RTC |
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