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參數(shù)資料
| 型號(hào)： | DS1677E |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 15/18頁 |
| 文件大小： | 0K |
| 描述： | IC CTRLR SYSTEM PORT 20-TSSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 74 |
| 類型： | 便攜系統(tǒng)控制器 |
| 特點(diǎn)： | 警報(bào)器，閏年，監(jiān)視計(jì)時(shí)器 |
| 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： | 3 線串口 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 電壓 - 電源，電池： | 2.5 V ~ 3.7 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-TSSOP |
| 包裝： | 管件 |
DS1677
6 of 18
TIME OF DAY ALARM BITS Table 1
ALARM REGISTER MASK BITS (BIT 7)
SECONDS
MINUTES
HOURS
DAYS
DESCRIPTION
1
Alarm once per second.
0
1
Alarm when seconds match.
0
1
Alarm when minutes and seconds match.
0
1
Alarm when hours, minutes and seconds match.
0
Alarm when day, hours, minutes and seconds match.
SPECIAL PURPOSE REGISTERS
The DS1677 has two additional registers (control register and status register) that control the RTC and
interrupts.
CONTROL REGISTER
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
EOSC
WP
AIS1
AIS0
0
AIE
EOSC (Enable Oscillator). This bit, when set to logic 0 will start the oscillator. When this bit is set to a
logic 1, the oscillator is stopped and the DS1677 is placed into a low-power standby mode with a current
drain of less than 200nA when in battery-backup mode. When the DS1677 is powered by VCC, the
oscillator is always on regardless of the status of the EOSC bit; however, the RTC is incremented only
when EOSC is a logic 0.
WP (Write Protect). Before any write operation to the real time clock or any other registers, this bit
must be logic 0. When high, the write protect bit prevents a write operation to any register.
AIS0–AIS1 (Analog Input Select). These two bits are used to determine the analog input for the analog-
to-digital conversion. Table 2 lists the specific analog input that is selected by these 2 bits.
AIE (Alarm Interrupt Enable). When set to a logic 1, this bit permits the Interrupt Request Flag (IRQF)
bit in the status register to assert INT. When the AIE bit is set to logic 0, the IRQF bit does not initiate the
INT signal.
ANALOG INPUT SELECTION Table 2
AIS1
AIS0
ANALOG INPUT
0
NONE
0
1
AIN0
1
0
AIN1
1
AIN2
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1677E+ | 功能描述:實(shí)時(shí)時(shí)鐘 Portable System Controller 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 |
| DS1677E-5 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Portable System Controller(275.85 k) |
| DS1678 | 功能描述:實(shí)時(shí)時(shí)鐘 Real-Time Event Recorder 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 |
| DS1678+ | 功能描述:實(shí)時(shí)時(shí)鐘 Real-Time Event Recorder 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 |
| DS1678J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2-Input Digital Multiplexer |
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