參數(shù)資料
型號(hào)： DS1388Z-33+T&R
廠(chǎng)商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/19頁(yè)
文件大?。?/td> 0K
描述： IC RTC I2C W/CHARGER 8-SOIC
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
類(lèi)型： 時(shí)鐘/日歷
特點(diǎn)： EEPROM，閏年，監(jiān)控器，涓流充電器，監(jiān)視計(jì)時(shí)器
存儲(chǔ)容量： 512B
時(shí)間格式： HH:MM:SS:hh（12/24 小時(shí)）
數(shù)據(jù)格式： YY-MM-DD-dd
接口： I²C，2 線(xiàn)串口
電源電壓： 2.97 V ~ 3.63 V
電壓 - 電源，電池： 1.3 V ~ 5.5 V
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOIC
包裝： 帶卷 (TR)
DS1388
I2C RTC/Supervisor with Trickle Charger
and 512 Bytes EEPROM
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.
General Description
The DS1388 I2C real-time clock (RTC), supervisor, and
EEPROM is a multifunction device that provides a
clock/calendar, programmable watchdog timer, power-
supply monitor with reset, and 512 bytes of EEPROM.
The clock provides hundredths of seconds, seconds,
minutes, and hours, and operates in 24-hour or 12-hour
format with an AM/PM indicator. The calendar provides
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. A watchdog timer provides a reset for an unre-
sponsive microprocessor. It is programmable in 10ms
intervals from 0.01 to 99.99 seconds. A temperature-
compensated voltage reference and comparator circuit
monitors the status of VCC. If a primary power failure is
detected, the device automatically switches to the
backup supply and drives the reset output to the active
state. The backup supply maintains time and date
operation in the absence of VCC. When VCC returns to
nominal levels, the reset is held low for a period to allow
the power supply and processor to stabilize. The
device also has a pushbutton reset controller, which
debounces a reset input signal. The device is
accessed through an I2C serial interface.
Applications
Portable Instruments
Point-of-Sale Equipment
Network Interface Cards
Wireless Equipment
Features
o Fast (400kHz) I2C Interface
o RTC Counts Hundredths of Seconds, Seconds,
Minutes, Hours, Day, Date, Month, and Year with
Leap Year Compensation Valid Up to 2100
o Programmable Watchdog Timer
o Automatic Power-Fail Detect and Switch Circuitry
o Reset Output with Pushbutton Reset Input
Capability
o 512 x 8 Bits of EEPROM
o Integrated Trickle-Charge Capability for Backup
Supply
o Three Operating Voltages: 5.0V, 3.3V, and 3.0V
o Low Timekeeping Voltage Down to 1.3V
o -40°C to +85°C Temperature Range
o UL Recognized
SO
TOP VIEW
+
DS1388
SCL
SDA
GND
1
2
8
7
VCC
RST
X2
VBACKUP
X1
3
4
6
5
Pin Configuration
RST
VCC
X1
SCL
X2
CPU
VCC
SDA
GND
VCC
RPU
RPU = tR/CB
RPU
VCC
CRYSTAL
VBACKUP
DS1388
Typical Operating Circuit
19-4984; Rev 4 4/13
+
Denotes a lead(Pb)-free/RoHS-compliant package.
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
TOP
MARK
DS1388Z-5+
-40°C to +85°C 8 SO (150 mils)
DS1388-5
DS1388Z-33+
-40°C to +85°C 8 SO (150 mils) DS138833
DS1388Z-3+
-40°C to +85°C 8 SO (150 mils)
DS1388-3
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參數(shù)描述
DS1388Z-5 功能描述:實(shí)時(shí)時(shí)鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線(xiàn)接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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
DS1388Z-5+ 功能描述:實(shí)時(shí)時(shí)鐘 I2C RTC/Supervisor w/Trickle Charger RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線(xiàn)接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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
DS1390 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Low-Voltage SPI/3-Wire RTCs with Trickle Charger
DS1390_07 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Low-Voltage SPI/3-Wire RTCs with Trickle Charger
DS1390_09 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Low-Voltage SPI/3-Wire RTCs with Trickle Charger
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