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參數(shù)資料
| 型號(hào)： | MAX6901ETA-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | XO, clock |
| 英文描述： | 3-Wire Serial RTC in a TDFN |
| 中文描述： | REAL TIME CLOCK, PDSO8 |
| 封裝： | 3 X 3 MM, 0.80 MM HEIGHT, TDFN-8 |
| 文件頁(yè)數(shù)： | 6/18頁(yè) |
| 文件大?。?/td> | 786K |
| 代理商： | MAX6901ETA-T |
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MAX6901
ttotal = tdrift + tinitial
ttotal = 0.00002+0.000025=0.000045s/s
After 1 month, that translates to:
Total worst-case timekeeping error at the end of 1
month at +45°C is about 120s or 2 min (assumes negli-
gible parasitic layout capacitance).
Oscillator Start Time
The MAX6901 oscillator typically takes 5s to 10s to
begin oscillating. To ensure the oscillator is operating
correctly, the software should validate proper time-
keeping. This is accomplished by reading the Seconds
register. Any reading of 1s or more from the POR value
of zero is a validation of proper startup.
Power-On Reset
The MAX6901 contains an integral POR circuit that
ensures all registers are reset to a known state on
power-up. Once VCC rises above 1.6V (typ), the POR
circuit releases the registers for normal operation. When
t
days
hr
day
hr
s
ss
s
=
()×
×
×
×
() =
31
24
60
0 00045
120 528
min
./
.
3-Wire Serial RTC in a TDFN
14
______________________________________________________________________________________
Figure 4. 3-Wire Read Data Transfer Serial Timing Diagram
01
7
0
1
CS
SCLK
I/O
tCC
tDC
tCDD
tCDZ
tCDD
tCCZ
tCDH
READ ADDRESS/COMMAND BYTE
READ DATA BIT
Figure 5. 3-Wire Write Data Transfer Serial Timing Diagram
CS
SCLK
I/O
tCC
tDC
tCDH
tCWH
tCL
tCDH
WRITE ADDRESS/COMMAND BYTE
WRITE DATA BIT
tR
tF
tCCH
01
7
0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX6902ETA | 制造商:Rochester Electronics LLC 功能描述: |
| MAX6902ETA＋ | 制造商:Maxim Integrated Products 功能描述: |
| MAX6902ETA+T | 功能描述:實(shí)時(shí)時(shí)鐘 SPI-Compatible RTC RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| MAX6902ETA-C6P | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX6902ETA-T | 功能描述:實(shí)時(shí)時(shí)鐘 RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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