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HT48R52A Datasheet(PDF) 5 Page - Holtek Semiconductor Inc

Part # HT48R52A
Description  44-pin QFP / LQFP
Download  36 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT48R52A Datasheet(HTML) 5 Page - Holtek Semiconductor Inc

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HT48R52A
Rev. 1.70
5
2014-04-03
交流电气特性
Ta=25℃
符号
参数
测试条件
最小
典型
最大
单位
VDD
条件
fSYS
系统时钟
RC 振荡)
2.2V~5.5V
400
4000
kHz
3.3V~5.5V
400
8000
fTIMER
定时器的输入频率
2.2V~5.5V
0
4000
kHz
3.3V~5.5V
0
8000
tWDTOSC 看门狗振荡器周期
3V
45
90
180
μ
s
5V
32
65
130
tFSP1
fSP 溢出周期
(时钟来源:WDT 振荡)
3V
预分频
fs/4096)
184
369
737
m s
5V
131
266
532
tFSP2
fSP 溢出周期
(时钟来源:RTC 振荡)
3V
预分频
fs/4096)
125
m s
5V
125
tRES
外部复位低电平脉冲宽度
1
μ
s
tSST
系统启动延时周期
上电或从暂停
状态唤醒
1024
tSYS
tLVR
低电压复位
0.25
1
2
m s
tINT
中断脉冲宽度
1
μ
s
注:
tSYS =1/ fSYS


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