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X1288S16-2.7AT1 PDF预览

X1288S16-2.7AT1

更新时间： 2024-02-27 21:07:40
品牌 Logo 应用领域
瑞萨 - RENESAS 时钟光电二极管外围集成电路
页数 文件大小 规格书
27页 414K
描述
1 TIMER(S), REAL TIME CLOCK, PDSO16, 0.300 INCH, PLASTIC, SOIC-16

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X1288S16-2.7AT1 技术参数

是否Rohs认证：不符合生命周期：Obsolete
零件包装代码：SOIC包装说明：SOIC-16
针数：16Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.71Is Samacsys：N
最大时钟频率：0.032 MHz信息访问方法：I2C
中断能力：YJESD-30 代码：R-PDSO-G16
JESD-609代码：e0长度：10.3 mm
湿度敏感等级：1端子数量：16
计时器数量：1最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP16,.4
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：240电源：3/5 V
认证状态：Not Qualified座面最大高度：2.65 mm
子类别：Timer or RTC最大供电电压：5.5 V
最小供电电压：2.7 V标称供电电压：5 V
表面贴装：YES技术：CMOS
温度等级：COMMERCIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL最短时间：1/100 SECOND
处于峰值回流温度下的最长时间：NOT SPECIFIED易失性：YES
宽度：7.5 mmuPs/uCs/外围集成电路类型：TIMER, REAL TIME CLOCK
Base Number Matches：1

X1288S16-2.7AT1 数据手册

 浏览型号X1288S16-2.7AT1的Datasheet PDF文件第6页浏览型号X1288S16-2.7AT1的Datasheet PDF文件第7页浏览型号X1288S16-2.7AT1的Datasheet PDF文件第8页浏览型号X1288S16-2.7AT1的Datasheet PDF文件第10页浏览型号X1288S16-2.7AT1的Datasheet PDF文件第11页浏览型号X1288S16-2.7AT1的Datasheet PDF文件第12页 
X1288  
The device offers a backup power input pin. This V  
When used as frequency output, this signal has a fre-  
quency of 32.768kHz, 100Hz, 1Hz or inactive.  
BACK  
pin allows the device to be backed up by battery or  
SuperCap. The entire X1288 device is fully operational  
from 2.7 to 5.5 volts and the clock/calendar portion of the  
X1288 device remains fully operational down to 1.8 volts  
(Standby Mode).  
When used as interrupt output, this signal notifies a host  
processor that an alarm has occurred and an action is  
required. It is an active LOW output.  
The control bits for this function are FO1 and FO0 and  
are found in address 0011h of the Clock Control Memory  
map. See “Programmable Frequency Output Bits - FO1,  
FO0” on page 13.  
The X1288 device provides 256K bits of EEPROM with 8  
modes of BlockLock™ control. The BlockLock allows a  
safe, secure memory for critical user and configuration  
data, while allowing a large user storage area.  
X1, X2  
PIN DESCRIPTIONS  
X1288  
The X1 and X2 pins are the input and output,  
respectively, of an inverting amplifier. An external  
32.768kHz quartz crystal is used with the X1288 to  
supply a timebase for the real time clock. The  
recommended crystal is a Citizen CFS206-32.768KDZF.  
Internal compensation circuitry is included to form a  
complete oscillator circuit. Care should be taken in the  
placement of the crystal and the layout of the circuit.  
Plenty of ground plane around the device and short  
traces to X1 and X2 are highly recommended. See  
Application section for more information.  
14 Ld TSSOP  
16 Ld SOIC  
X1  
V
V
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
V
V
CC  
X1  
X2  
CC  
1
2
14  
13  
12  
11  
10  
9
X2  
BACK  
BACK  
NC  
NC  
PHZ/IRQ  
NC  
PHZ/IRQ  
NC  
NC  
NC  
3
4
5
6
NC  
NC  
NC  
NC  
NC  
NC  
RESET  
SCL  
RESET  
SCL  
SDA  
V
SDA  
SS  
7
8
V
SS  
NC = No internal connection  
Serial Clock (SCL)  
The SCL input is used to clock all data into and out of the  
device. The input buffer on this pin is always active (not  
gated).  
X1  
X2  
Serial Data (SDA)  
FIGURE 2. RECOMMENDED CRYSTAL CONNECTION  
SDA is a bidirectional pin used to transfer data into and  
out of the device. It has an open drain output and may be  
wire ORed with other open drain or open collector out-  
puts. The input buffer is always active (not gated).  
POWER CONTROL OPERATION  
The power control circuit accepts a V  
and a V  
BACK  
CC  
input. The power control circuit powers the clock from  
when V < V - 0.2V. It will switch back to  
V
An open drain output requires the use of a pull-up resis-  
tor. The output circuitry controls the fall time of the output  
signal with the use of a slope controlled pull-down. The  
circuit is designed for 400kHz 2-wire interface speed.  
BACK  
CC  
BACK  
power the device from V when V exceeds V  
.
CC  
CC  
BACK  
VCC  
Voltage  
On  
VBACK  
V
BACK  
In  
Off  
This input provides a backup supply voltage to the  
device. V supplies power to the device in the event  
BACK  
the V supply fails. This pin can be connected to a bat-  
CC  
tery, a Supercap or tied to ground if not used.  
FIGURE 3. POWER CONTROL  
RESET Output – RESET  
REAL TIME CLOCK OPERATION  
This is a reset signal output. This signal notifies a host  
processor that the watchdog time period has expired or  
The Real Time Clock (RTC) uses an external 32.768kHz  
quartz crystal to maintain an accurate internal represen-  
tation of the 1/100 of a second, second, minute, hour,  
day, date, month, and year. The RTC has leap-year cor-  
rection. The clock also corrects for months having fewer  
than 31 days and has a bit that controls 24 hour or  
AM/PM format. When the X1288 powers up after the loss  
that the voltage has dropped below a fixed V  
thresh-  
TRIP  
old. It is an open drain active LOW output. Recom-  
mended value for the pullup resistor is 5kΩ. If unused, tie  
to ground.  
Programmable Frequency/Interrupt Output – PHZ/IRQ  
This is either an output from the internal oscillator or an  
interrupt signal output. It is a CMOS output.  
of both V and V  
, the clock will not operate until at  
CC  
BACK  
least one byte is written to the clock register.  
FN8102.3  
9
April 14, 2006  
1...6789101112...27

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