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参数资料
| 型号： | RTC-7301SFB |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | REAL TIME CLOCK, PDSO24 |
| 封装： | SSOP-24 |
| 文件页数： | 10/28页 |
| 文件大小： | 274K |
| 代理商： | RTC-7301SFB |
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RTC - 7301 SF / DG
Page - 15
MQ332-05
6-2-9. Timer interrupt
Setting the TI / TP bit enables selection of the level interrupt or the repeat interrupt modes.
( 1 ) Level interrupt mode ( TI / TP = "0" )
When an interrupt occurs, and TIE =1, the /IRQ pin outputs “L” and if TIE = 0, the /IRQ pin becomes high
impedance.
"1"
"0"
"1"
"0"
"1"
"0"
TIE Bit
IRQ Output
TF Bit
Write
“0” to the TF bit
Interrupt Timing
Hi-Z
* Does not output this area when bit is "0."
”L” Level
”1”
”0”
( 2 ) Repeat mode ( TI/TP = "1" )
When an interrupt occurs, and TIE = 1, the /IRQ pin outputs “L.”
When an interrupt occurs and TIE = 0, only the TF bit is “1” while the /IRQ pin stays at high impedance.
This state
is retained.
TIE Bit
IRQ Output
TF Bit
Auto Recovery
"1"
"0"
Write
“0”to the TF bit
Interrupt Timing
Hi-Z
”L” Level
”1”
”0”
tRTN
*Auto recovery time of the interrupt output in the repeat mode
The auto recovery time (tRTN) is different by the source clock specified by Bank1 Reg-D (FD3 and FD4 bits).
Relationship of each source clock and auto recovery times
Source clock
Auto recovery times (tRTN)
4069 Hz
0.122 ms
64 Hz
7.81 ms
Update in
seconds
7.81 ms
Update in
minutes
7.81 ms
6-2-10. How to verify the digital offset
Because the digital offset is performed every 10 seconds, the results of the digital offset outputs a 10 s signal
from the FOUT pin and this allows monitoring.
FOUT
T10 s
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| RTC-8564JE | 制造商:Epson Toyocom Corporation 功能描述:32.768kHz 275nA@3ViTyp.j 3.0V (typ.) 7.0~5.4~1.5mm +85 -40 5}23ppm@+25/3.0V 7mm 5.4mm 1.5mm 制造商:Epson Toyocom Corporation 功能描述:RTC I2C BUS INTERFACE SMD VSOJ-20 制造商:Epson Toyocom Corporation 功能描述:RTC I2C BUS INTERFACE, SMD, VSOJ-20 制造商:Epson Toyocom Corporation 功能描述:IC, RTC, FULL CALENDAR, VSOJ-20; Clock Format:12Hr / 24Hr; Clock IC Type:RTC; Supply Voltage Min:1.8V; Supply Voltage Max:5.5V; Digital IC Case Style:VSOJ; No. of Pins:20; IC Interface Type:I2C; Operating Temperature Min:-40C ;RoHS Compliant: Yes 制造商:Epson Toyocom 功能描述:RTC module,I2C Bus,Alarm,timer func |
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