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| 型號： | DS1388Z-3 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | XO, clock |
| 英文描述： | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| 中文描述： | REAL TIME CLOCK, PDSO8 |
| 封裝： | 0.150 INCH, SOIC-8 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 381K |
| 代理商： | DS1388Z-3 |
General Description
The DS1388 I
2
C 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 V
CC
. 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 V
CC
. When V
CC
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 I
2
C serial interface.
Applications
Portable Instruments
Point-of-Sale Equipment
Network Interface Cards
Wireless Equipment
Features
Fast (400kHz) I
2
C Interface
RTC Counts Hundredths of Seconds, Seconds,
Minutes, Hours, Day, Date, Month, and Year with
Leap Year Compensation Valid Up to 2100
Programmable Watchdog Timer
Automatic Power-Fail Detect and Switch Circuitry
Reset Output with Pushbutton Reset Input
Capability
512 x 8 Bits of EEPROM
Integrated Trickle-Charge Capability for Backup
Supply
Three Operating Voltages: 5.0V, 3.3V, and 3.0V
Low Timekeeping Voltage Down to 1.3V
-40°C to +85°C Temperature Range
UL Recognized
Ordering Information
D
I
2
C RTC/Supervisor with Trickle Charger
and 512 Bytes EEPROM
______________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
1
2
3
4
8
7
6
5
V
CC
RST
SCL
SDA
V
BACKUP
GND
X2
X1
TOP VIEW
DS1388
SO
Pin Configuration
RST
V
CC
X1
SCL
X2
CPU
V
CC
DS1388
SDA
GND
V
CC
RPU
RPU = t
r
/C
B
RPU
V
CC
CRYSTAL
V
BACKUP
Typical Operating Circuit
Rev 0; 4/05
A ’+’ symbol near the pin one indicator indicates lead-free.
+ = Lead free.
PART
TEMP RANGE
PIN-
PACKAGE
TOP
MARK
DS1388Z-3
DS1388Z-33
DS1388Z-5
DS1388Z-5+
DS1388Z-33+
DS1388Z-3+
-40°C to +85°C 8 SO (150 mils)
-40°C to +85°C 8 SO (150 mils)
-40°C to +85°C 8 SO (150 mils)
-40°C to +85°C 8 SO (150 mils)
-40°C to +85°C 8 SO (150 mils)
-40°C to +85°C 8 SO (150 mils)
DS1388-3
DS138833
DS1388-5
DS1388-5
DS138833
DS1388-3
Purchase of I
2
C components from Maxim Integrated Products,
Inc., or one of its sublicensed Associated Companies, conveys
a license under the Philips I
2
C Patent Rights to use these com-
ponents in an I
2
C system, provided that the system conforms
to the I
2
C Standard Specification as defined by Philips.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1388Z-3+ | 功能描述:實時時鐘 I2C RTC/Supervisor w/Trickle Charger 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 |
| DS1388Z-3+T&R | 制造商:Maxim Integrated Products 功能描述:2WIRE RTC 3V,SUPRVSR &EPROM PB-F TR - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC I2C W/CHARGER 8-SOIC |
| DS1388Z-3+T&R | 功能描述:實時時鐘 I2C RTC/Supervisor w/Trickle Charger 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 |
| DS1388Z-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 |
| DS1388Z-33+ | 功能描述:實時時鐘 I2C RTC/Supervisor w/Trickle Charger 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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