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DS1374U PDF预览

DS1374U

更新时间: 2024-11-17 14:57:15
品牌 Logo 应用领域
亚德诺 - ADI 计数器
页数 文件大小 规格书
18页 267K
描述
I2C、32位二进制计数器看门狗RTC,带有涓流充电器和复位输入/输出

DS1374U 数据手册

 浏览型号DS1374U的Datasheet PDF文件第2页浏览型号DS1374U的Datasheet PDF文件第3页浏览型号DS1374U的Datasheet PDF文件第4页浏览型号DS1374U的Datasheet PDF文件第5页浏览型号DS1374U的Datasheet PDF文件第6页浏览型号DS1374U的Datasheet PDF文件第7页 
19-5484; Rev 4; 8/10  
2
I C, 32-Bit Binary Counter Watchdog RTC with  
Trickle Charger and Reset Input/Output  
DS1374  
General Description  
Features  
32-Bit Binary Counter  
The DS1374 is a 32-bit binary counter designed to contin-  
uously count time in seconds. An additional counter gen-  
erates a periodic alarm or serves as a watchdog timer. If  
disabled, this counter can be used as 3 bytes of non-  
volatile (NV) RAM. Separate output pins are provided for  
an interrupt and a square wave at one of four selectable  
frequencies. A precision temperature-compensated refer-  
Second Binary Counter Provides Time-of-Day  
Alarm, Watchdog Timer, or NV RAM  
Separate Square-Wave and Interrupt Output Pins  
2
I C Serial Interface  
Automatic Power-Fail Detect and Switch Circuitry  
Single-Pin Pushbutton Reset Input/Open-Drain  
ence and comparator circuit monitor the status of V  
to  
CC  
detect power failures, provide a reset output, and auto-  
matically switch to the backup supply when necessary.  
Additionally, the reset pin is monitored as a pushbutton  
input for externally generating a reset. The device is pro-  
Reset Output  
Low-Voltage Operation  
Trickle-Charge Capability  
2
grammed serially through an I C serial interface.  
-40°C to +85°C Operating Temperature Range  
10-Pin µSOP, 16-Pin SO  
Available in a Surface-Mount Package with an  
Integrated Crystal (DS1374C)  
Underwriters Laboratories (UL) Recognized  
Applications  
Portable Instruments  
Point-of-Sale Equipment  
Medical Equipment  
Typical Operating Circuit  
V
CC  
V
CC  
RPU = t /C  
B
Telecommunications  
r
CRYSTAL  
RPU RPU  
V
CC  
V
X1  
X2  
CC  
SQW  
SCL  
SDA  
CPU  
DS1374  
V
INT  
RST  
INT  
PRIMARY  
BATTERY,  
RECHARGEABLE  
BATTERY, OR  
SUPER CAPACITOR  
BACKUP  
RST  
GND  
N.O.  
PUSHBUTTON  
RESET  
Pin Configurations appear at the end of the data sheet.  
Ordering Information  
PART  
DS1374C-18#  
DS1374C-3#  
DS1374C-33#  
DS1374U-18+  
DS1374U-3+  
DS1374U-33+  
TEMP RANGE  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
VOLTAGE (V)  
PIN-PACKAGE  
16 SO (300 mils)  
16 SO (300 mils)  
16 SO (300 mils)  
10 μSOP  
TOP MARK**  
DS1374C-18  
DS1374C-3  
DS1374C-33  
DS1374-18  
DS1374-3  
1.8  
3.0  
3.3  
1.8  
3.0  
3.3  
10 μSOP  
10 μSOP  
DS1374-33  
#Denotes a RoHS-compliant device that may include lead that is exempt under RoHS requirements. The lead finish is JESD97 category  
e3, and is compatible with both lead-based and lead-free soldering processes.  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
**A "#" anywhere on the top mark denotes a RoHS-compliant package. A “+” anywhere on the top mark denotes a lead(Pb)-free  
package.  
______________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  

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