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參數(shù)資料
| 型號： | DS2404 |
| 英文描述： | EconoRAM Time Chip |
| 中文描述： | 經(jīng)濟型RAM時鐘芯片 |
| 文件頁數(shù)： | 22/28頁 |
| 文件大小： | 663K |
| 代理商： | DS2404 |
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DS2404
22 of 28
020998
V
CC
Operate Mode (Battery Backed)
Figure 16 shows the necessary connections for operating the DS2404 in V
CC
Operate mode.
VCC OPERATE MODE
Figure 16
V
CC
V
BATB
V
BATO
Pin 1 & 16
Pin 9
Pin 10
2.8 to 5.5 volts
2.8 to 5.5 volts
must be unconnected
To always allow communication through the 1-Wire or wire port, the voltage on V
CC
must be
approximately 3-wire port, the voltage on V
CC
must be approximately 0.2V above the voltage on V
BATB
.
Otherwise the DS2404 will retain data, but will not allow any access.
The V
BATB
pin is normally connected to any standard 3V lithium cell or other energy source. As V
CC
falls
below V
BATB
, the power switching circuit allows V
BATB
to provide energy for maintaining clock
functionality and data retention. No communication can take place while V
BATB
is greater than V
CC
.
During power-up, when V
CC
reaches a value of approximately 0.2V above V
BATB
, the power switching
circuit connects V
CC
and disconnects V
BATB
. If the oscillator is on, no communication can take place
until V
CC
has stayed approximately 0.2V above V
BATB
for 123 ± 2 ms. During power-down, the falling
V
CC
must pass the range from V
BATB
to 0V in no less than 100 ns for the power switching circuit to
function properly.
相關PDF資料 |
PDF描述 |
|---|---|
| DS2404-001 | EconoRAM Time Chip |
| DS2404B | EconoRAM Time Chip |
| DS2404S | EconoRAM Time Chip |
| DS2405 | Addressable Switch |
| DS2405P | Addressable Switch |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2404-001 | 制造商:Maxim Integrated Products 功能描述:ECONORAM/TIME, DIP16 (GENERIC) - Rail/Tube |
| DS2404-001+ | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 512BYTE 16PDIP - Rail/Tube |
| DS2404B | 功能描述:實時時鐘 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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS2404B/T&R | 制造商:Maxim Integrated Products 功能描述:ECONORAM/TIME, SSOP16-TRL (GENERIC) - Tape and Reel |
| DS2404B+ | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 512BYTE 16SSOP - Rail/Tube |
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