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FM31T376-G 参数 Datasheet PDF下载

FM31T376-G图片预览
型号: FM31T376-G
PDF下载: 下载PDF文件 查看货源
内容描述: 系统监控器和温度补偿实时时钟( TCXO )与内嵌晶体 [System Supervisor & Temperature Compensated RTC(TCXO) with Embedded Crystal]
分类和应用: 晶体电源电路电源管理电路石英晶振温度补偿晶振光电二极管监控时钟
文件页数/大小: 26 页 / 796 K
品牌: RAMTRON [ RAMTRON INTERNATIONAL CORPORATION ]
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FM31T372/374/376/378-G  
A general-purpose comparator compares an external  
input pin to the onboard 1.2V reference. This is  
useful for generating a power-fail interrupt (NMI) but  
can be used for any purpose. The family also includes  
a programmable 64-bit serial number that can be  
locked making it unalterable. Additionally it offers a  
dual battery-backed event counter that tracks the  
number of rising or falling edges detected on  
dedicated input pins.  
Pin Name  
CNT1, CNT2  
A0, A1  
Function  
Event Counter Inputs  
Device Select inputs  
Clock Calibration and Early  
Power-Fail Output  
Reset Input/Output  
Ground  
Battery-Backup Supply  
Early Power-fail Input  
Event Counter Driven Interrupt  
Output  
Pin Configuration  
CAL/PFO  
VDD  
SCL  
1
2
14  
13  
CNT1  
CNT2  
A0  
/RST  
VSS  
VBAK  
PFI  
3
4
12  
11  
SDA  
FOUT  
/INT  
PFI  
A1  
/INT  
5
6
7
10  
9
CAL/PFO  
FOUT  
SDA  
SCL  
32.768 kHz Clock Output  
Serial Data  
Serial Clock  
RST  
VSS  
8
VBAK  
VDD  
Supply Voltage  
Ordering Information  
Base Configuration Memory Size Operating Voltage Reset Threshold  
Ordering Part Number  
FM31T378-G  
FM31T376-G  
FM31T374-G  
FM31T372-G  
FM31T378  
FM31T376  
FM31T374  
FM31T372  
256Kb  
64Kb  
16Kb  
4Kb  
2.7-5.5V  
2.7-5.5V  
2.7-5.5V  
2.7-5.5V  
2.6V, 2.9, 3.9, 4.4V  
2.6V, 2.9, 3.9, 4.4V  
2.6V, 2.9, 3.9, 4.4V  
2.6V, 2.9, 3.9, 4.4V  
Rev. 1.1  
Apr. 2011  
Page 2 of 26  
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