- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9371 > DS1342U+ (Maxim Integrated Products)IC RTC I2C W/ALARM 8USOP PDF資料下載
參數(shù)資料
| 型號： | DS1342U+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RTC I2C W/ALARM 8USOP |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 50 |
| 類型： | 時鐘/日歷 |
| 特點： | 警報器，閏年，方波輸出 |
| 時間格式： | HH:MM:SS（12/24 小時） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | I²C，2 線串口 |
| 電源電壓： | 1.8 V ~ 5.5 V |
| 電壓 - 電源，電池： | 1.3 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 8-uMAX |
| 包裝： | 管件 |
Low-Current I2C RTCs for High-ESR Crystals
DS1341/DS1342
General Description
The DS1341/DS1342 low-current real-time clocks (RTCs)
are timekeeping devices that provide an extremely low
standby current, which permits longer life from a power
supply. The DS1341/DS1342 support high-ESR crystals,
which broaden the pool of usable crystals for the devices.
The DS1341 uses a 6pF crystal, while the DS1342 uses a
12.5pF crystal. These devices are accessed through an
I2C serial interface. Other features include two time-of-day
alarms, two interrupt outputs, a programmable square-
wave output, and a serial bus timeout mechanism.
The clock/calendar provides seconds, minutes, hours,
day, date, month, and year information. The date at the
end of the month is automatically adjusted for months
with fewer than 31 days, including corrections for leap
year. The clock operates in either 24hr or 12hr format
with an AM/PM indicator.
The DS1341/DS1342 also include an input for synchroni-
zation. When a reference clock (e.g., 60Hz power line or
GPS 1PPS) is present at the CLKIN pin and the enable
external clock input bit (ECLK) is set to 1, the DS1341/
DS1342 RTCs are frequency-locked to the external clock
and the clock accuracy is determined by the external
source. In case of external clock failure, the clock is
switched to the crystal oscillator.
The devices are available in lead(Pb)-free/RoHS-
compliant, 8-pin FSOP or TDFN packages. The devices
support a -40NC to +85NC extended temperature range.
Features
S
Low Timekeeping Current of 250nA (typ)
S
Compatible with Crystal ESR Up to 100kI
S
Use Crystals with CL = 6pF (DS1341) or
CL = 12.5pF (DS1342)
S
+1.8V to +5.5V Operating Voltage Range
S
Maintain Time Down to +1.15V (typ)
S
Fast (400kHz) I2C Interface
S
Bus Timeout for Lockup-Free Operation
S
RTC Counts Seconds, Minutes, Hours, Day, Date,
Month, and Year with Leap Year Compensation
Valid Through 2099
S
External Clock Source for Synchronization Clock
Reference (e.g., 32kHz, 50Hz/60Hz Power Line,
GPS 1PPS)
S
Two Time-of-Day Alarms with Two Interrupt
Outputs
S
Programmable Square-Wave Output
S
Industrial Temperature Range
S
Small, 8-Pin SOP or TDFN Packages
Applications
19-4998; Rev 2; 1/12
Typical Operating Circuit
Ordering Information
+Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
*EP = Exposed pad.
Medical
Point of Sale (POS)
Telematics
Portable Instruments
Portable Audio
Automotive
DS1341/DS1342
SCL
SDA
CLKIN/INTA
SQW/INTB
X1
X2
GND
VCC
RPU
CPU
VCC
PART
TEMP RANGE
PIN-
PACKAGE
OSC
CL (pF)
DS1341U+
-40NC to +85NC
8 FSOP
6
DS1341U+T&R
-40NC to +85NC
8 FSOP
6
DS1341T+
-40NC to +85NC
8 TDFN-EP*
6
DS1341T+T&R
-40NC to +85NC
8 TDFN-EP*
6
DS1342U+
-40NC to +85NC
8 FSOP
12.5
DS1342U+T&R
-40NC to +85NC
8 FSOP
12.5
DS1342T+
-40NC to +85NC
8 TDFN-EP*
12.5
DS1342T+T&R
-40NC to +85NC
8 TDFN-EP*
12.5
For pricing, delivery, and ordering information, please contact Maxim Direct at
1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
相關PDF資料 |
PDF描述 |
|---|---|
| VI-BNT-MW-B1 | CONVERTER MOD DC/DC 6.5V 100W |
| VE-B3B-MY-F1 | CONVERTER MOD DC/DC 95V 50W |
| MS3100F22-15S | CONN RCPT 6POS WALL MNT W/SCKT |
| VI-BNT-MV | CONVERTER MOD DC/DC 6.5V 150W |
| ISL23315UFUZ-T7A | IC DGTL POT 256POS 50K 10MSOP |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DS1342U+ | 功能描述:實時時鐘 I2C RTC 12pF 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 |
| DS1342U+T&R | 制造商:Maxim Integrated Products 功能描述:I2C RTC 12.5PF UMAX PB FREE T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:MXMDS1342U+T&R LOW-CURRENT IC RTCS FOR H 制造商:Maxim Integrated Products 功能描述:IC RTC I2C W/ALARM 8USOP 制造商:Maxim Integrated Products 功能描述:Real Time Clock I2C RTC 12pF |
| DS1342U+T&R | 功能描述:實時時鐘 I2C RTC 12pF 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 |
| DS1342U+TR | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Low-Current I2C RTCs for High-ESR Crystals |
| DS1343 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Low-Current SPI/3-Wire RTCs |
發(fā)布緊急采購，3分鐘左右您將得到回復。