參數(shù)資料
型號(hào)： DS1305EN/T&R
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 20/22頁(yè)
文件大?。?/td> 0K
描述： IC RTC SERIAL ALARM IND 20-TSSOP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
類(lèi)型： 時(shí)鐘/日歷
特點(diǎn)： 警報(bào)器，閏年，NVSRAM，涓流充電器
存儲(chǔ)容量： 96B
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： SPI
電源電壓： 2 V ~ 5.5 V
電壓 - 電源，電池： 2 V ~ 5.5 V
工作溫度： -40°C ~ 85°C
安裝類(lèi)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： 帶卷 (TR)
DS1305
7 of 22
hour, and minute alarm registers is set to a logic 1. When bit 7 of the day, hour, minute, and seconds
alarm registers is set to a logic 1, alarm occurs every second.
During each clock update, the RTC compares the Alarm 0 and Alarm 1 registers with the corresponding
clock registers. When a match occurs, the corresponding alarm flag bit in the status register is set to a 1. If
the corresponding alarm interrupt enable bit is enabled, an interrupt output is activated.
Table 2. TIME-OF-DAY ALARM MASK BITS
ALARM REGISTER MASK BITS (BIT 7)
SECONDS
MINUTES
HOURS
DAYS
FUNCTION
1
Alarm once per second
0
1
Alarm when seconds match
0
1
Alarm when minutes and seconds match
0
1
Alarm hours, minutes, and seconds match
0
Alarm day, hours, minutes and seconds match
SPECIAL PURPOSE REGISTERS
The DS1305 has three additional registers (control register, status register, and trickle charger register)
that control the RTC, interrupts, and trickle charger.
CONTROL REGISTER (READ 0Fh, WRITE 8Fh)
BIT7
BIT6
BIT5
BIT4
BIT3
BIT2
BIT1
BIT0
EOSC
WP
0
INTCN
AIE1
AIEO
EOSC
(Enable Oscillator) – This bit when set to logic 0 starts the oscillator. When this bit is set to a
logic 1, the oscillator is stopped and the DS1305 is placed into a low-power standby mode with a current
drain of less than 100nA when power is supplied by VBAT or VCC2. On initial application of power, this bit
will be set to a logic 1.
WP (Write Protect) – Before any write operation to the clock or RAM, this bit must be logic 0. When
high, the write protect bit prevents a write operation to any register, including bits 0, 1, 2, and 7 of the
control register. Upon initial power-up, the state of the WP bit is undefined. Therefore, the WP bit should
be cleared before attempting to write to the device.
INTCN (Interrupt Control) – This bit controls the relationship between the two time-of-day alarms and
the interrupt output pins. When the INTCN bit is set to a logic 1, a match between the timekeeping
registers and the Alarm 0 registers activates the INT0 pin (provided that the alarm is enabled) and a
match between the timekeeping registers and the Alarm 1 registers activate the INT1 pin (provided that
the alarm is enabled). When the INTCN bit is set to a logic 0, a match between the timekeeping registers
and either Alarm 0 or Alarm 1 activate the INT0 pin (provided that the alarms are enabled). INT1 has no
function when INTCN is set to a logic 0.
AIE0 (Alarm Interrupt Enable 0) – When set to a logic 1, this bit permits the interrupt 0 request flag
(IRQF0) bit in the status register to assert INT0 . When the AIE0 bit is set to logic 0, the IRQF0 bit does
not initiate the INT0 signal.
相關(guān)PDF資料
PDF描述
DS1337C#T&R IC RTC I2C W/ALARM 16-SOIC
DS1340C-33#T&R IC RTC I2C W/CHARGER 16-SOIC
DS1374C-3#T&R IC RTC I2C 32BIT 3.0V 16-SOIC
DS1374C-33#T&R IC RTC I2C W/CHARGER 16-SOIC
DS1305EN+T&R/C01 IC RTC SERIAL ALARM IND 20-TSSOP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS1305N 功能描述:實(shí)時(shí)時(shí)鐘 Serial Alarm RTC 3-Wire 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
DS1305N+ 功能描述:實(shí)時(shí)時(shí)鐘 Serial Alarm RTC 3-Wire 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
DS1305Z 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Serial Alarm Real-Time Clock(287.74 k)
DS1306 功能描述:實(shí)時(shí)時(shí)鐘 Serial Alarm RTC 3-Wire 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
DS1306_05 制造商:DALLAS 制造商全稱(chēng):Dallas Semiconductor 功能描述:Serial Alarm Real-Time Clock
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(xiě)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

*
*
*