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参数资料
| 型号： | X1203S8T1 |
| 元件分类： | XO, clock |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封装： | PLASTIC, SOIC-8 |
| 文件页数： | 1/19页 |
| 文件大小： | 155K |
| 代理商： | X1203S8T1 |
REV 1.2.0 2/13/01
James Tsang
Characteristics subject to change without notice.
1 of 19
www.xicor.com
X1203
2-Wire RTC
Real Time Clock/Calendar/Alarm
FEATURES
2 alarms—interrupt output
—Settable on the second, minute, hour, day,
month, or day of the week
—Repeat alarm for time base generation
2-wire interface interoperable with I2C
—400kHz data transfer rate
Secondary power supply input with internal
switch-over circuitry
Low power CMOS
—<1A operating current
—<3mA active current during program
—<400A active current during data read
Typical nonvolatile write cycle time: 5ms
High reliability
Small package options
—8-lead SOIC package, 8-lead TSSOP package
DESCRIPTION
The X1203 is a Real Time Clock with clock/calendar
circuits and two alarms. The dual port clock and alarm
registers allow the clock to operate, without loss of
accuracy, even during read and write operations.
The clock/calendar provides functionality that is con-
trollable and readable through a set of registers. The
clock, using a low cost 32.768kHz crystal input, accu-
rately tracks the time in seconds, minutes, hours, date,
day, month and years. It has leap year correction,
automatic adjustment for the year 2000 and months
with less than 31 days.
An alarm match of the RTC sets an interrupt ag and
activates an interrupt pin. An alternative alarm function
provides a pulsed interrupt for long time constant time-
bases.
The device offers a backup power input pin. This
VBACK pin allows the device to be backed up by a non-
rechargeable battery. The RTC is fully operational from
2.7 to 5.5 Volts and the RTC portion of the X1203
device remains fully operational down to 1.8 Volts.
BLOCK DIAGRAM
X1
X2
Oscillator
Frequency
Timer
Logic
Divider
Calendar
8
32.768kHz
Control
Registers
1Hz
Time
Keeping
Registers
Alarm Regs
Compare
Mask
IRQ
Control
Decode
Logic
Alarm
(EEPROM)
SCL
SDA
Serial
Interface
Decoder
Interrupt Enable
Registers
Status
(SRAM)
Alarm
(SRAM)
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| X1205S8 | 功能描述:IC RTC/CALENDAR 2-WIRE 8-SOIC RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 类型:时钟/日历 特点:警报器，闰年，SRAM 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:SPI 电源电压:2 V ~ 5.5 V 电压 - 电源，电池:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN EP 包装:管件 |
| X1205S8I | 功能描述:IC RTC/CALENDAR 2-WIRE 8-SOIC RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 类型:时钟/日历 特点:警报器，闰年，SRAM 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:SPI 电源电压:2 V ~ 5.5 V 电压 - 电源，电池:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN EP 包装:管件 |
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