參數(shù)資料
型號(hào)： PT7C43390WEX
廠商： Pericom
文件頁(yè)數(shù)： 20/23頁(yè)
文件大?。?/td> 0K
描述： IC REAL TIME CLOCK 8SOIC
標(biāo)準(zhǔn)包裝： 1
類型： 時(shí)鐘/日歷
特點(diǎn)： 警報(bào)器，閏年，方波輸出
時(shí)間格式： HH:MM:SS（12/24 小時(shí)）
數(shù)據(jù)格式： YY-MM-DD-dd
接口： I²C，2 線串口
電源電壓： 1.3 V ~ 5.5 V
電壓 - 電源，電池： 1.1 V ~ 5.5 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 8-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 8-SOIC
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： PT7C43390WEXDKR
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
PT0280(08/09)
Ver: 3
6
Data Sheet
PT7C43390
2-Wire Real-time Clock Module
2.
Status register_1
Status register_1 is an 8-bit register that is used to display and set various modes. The bit configuration is shown below.
R: Read-enabled
W: Write-enabled
R/W: Read/Write-enabled
B7: POC
This flag is set to “1” at power-on. Once this flag is set to “1”, it is not set to “0” even when the power supply voltage
reaches or exceeds the detection voltage (VDET). This flag is read-only and can be read by the status register_1 access
command. Once it is read, it is automatically set to “0”. When the flag is “1”, it must be initialized. For the method of
initialization, refer to “Initialization at Power-on and Power-on Detector”.
B6: BLD
If the power supply voltage detector detects a voltage of detection voltage (VDET) or less this flag is set to “1”, which
enables the detection of a power supply voltage drop. Once this flag is set to “1”, it is not set to “0” even when the
power supply voltage reaches or exceeds the detection voltage (VDET). This flag is read-only and can be read by the
status register_1 access command. Once it is read, it is automatically set to “0”. When the flag is “1”, it must be
initialized. For the method of initialization, refer to “Initialization at Power-on and Power-on Detector”. and for the
operation of the power supply voltage detector, refer to “Power Supply Voltage Detector”.
B5, B4: INT2, INT1
When the interrupt signal is output from the INT1 or INT2 pin using the alarm interrupt function, for an interrupt signal
output from the INT1 pin, the INT1 flag is set to “1”, and for an interrupt signal output from the INT2 pin, the INT2 flag
is set to “1”.
B3, B2: SC1, SC0
These flags configure a 2-bit SRAM type register that can be freely set by users. They are read and written within the
operating voltage range (1.3 to 5.5 V).
B1: 12/24
This flag is used to set 12-hour or 24-hour expression.
0: 12-hour expression
1: 24-hour expression
B0: RESET
By setting this bit to “1”, the internal IC is initialized. This is a write-only bit and is always “0” when it is read. Be sure
to write “1” to the reset flag when applying the power supply voltage to the IC.
3.
Status register_2
Status register_2 is an 8-bit register that is used to display and set various modes. The bit configuration is shown below.
R/W: Read/Write-enabled
相關(guān)PDF資料
PDF描述
PT7C4563UEX IC REAL TIME CLOCK 8MSOP
QPI-12LZ-01 IC INTERFACE FILTER
QPI-5LZ FILTER 24V 14A ACTIVE EMI
QPI-6LZ-01 IC INTERFACE FILTER
QPO-1LZ-01 IC INTERFACE FILTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PT7C4363 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:Real-time Clock Module (I2C Bus)
PT7C4363P 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:Real-time Clock Module (I2C Bus)
PT7C4363W 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:Real-time Clock Module (I2C Bus)
PT7C4363WEX 制造商:Pericom 功能描述:Real-time Clock Module(I2C Bus)
PT7C4372ALE 制造商:Pericom Semiconductor Corporation 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*