- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9331 > DS1689S (Maxim Integrated Products)IC RTC SER W/NV RAM CTRL 28-SOIC PDF資料下載
參數(shù)資料
| 型號(hào)： | DS1689S |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 31/36頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC RTC SER W/NV RAM CTRL 28-SOIC |
| 標(biāo)準(zhǔn)包裝： | 26 |
| 類型： | 時(shí)鐘/日歷 |
| 特點(diǎn)： | NVSRAM |
| 存儲(chǔ)容量： | 114B |
| 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： | 并聯(lián) |
| 電源電壓： | 2.7 V ~ 3.3 V，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： | 28-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SOIC |
| 包裝： | 管件 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁當(dāng)前第31頁第32頁第33頁第34頁第35頁第36頁
DS1689/DS1693
4 of 36
PIN
SO
EDIP
NAME
FUNCTION
24
SQW
Square-Wave Output. The SQW pin can output a signal from one of
13 taps provided by the 15 internal divider stages of the real time
clock. The frequency of the SQW pin can be changed by
programming Register A as shown in Table 2. The SQW signal can
be turned on and off using the SQWE bit in Register B. A 32kHz
SQW signal is output when SQWE = 1, the Enable 32kHz (E32K)
bit in extended register 04BH is logic 1, and VCC is above VPF. A
32kHz square wave is also available when VCC is less than VPF if
E32K = 1, ABE = 1, and voltage is applied to VBAUX.
25
VCCO
External SRAM Power-Supply Output. This pin is internally
connected to VCCI when VCCI is within nominal limits. However,
during power fail, VCCO is internally connected to the VBAT or VBAUX
(whichever is larger). For 5V operation, switchover from VCCI to the
backup supply occurs when VCCI drops below the larger of VBAT and
VBAUX. For 3V operation, switchover from VCCI to the backup supply
occurs at VPF if VPF is less than VBAT and VBAUX. If VPF is greater
than VBAT and VBAUX, the switch from VCCI to the backup supply
occurs when VCCI drops below the larger of VBAT and VBAUX.
26
VCCI
+3V or +5V Main Supply. DC power is provided to the device on
these pins. 5V operation is selected when the PSEL pin is at logic 1.
If PSEL is floated or at logic 0, the device is in autosense mode and
determines the correct operating voltage based on the VCCI voltage
level.
27
CEO
Active-Low RAM Chip Enable Output. When power is valid,
CEO
will equal
CEI. When power is not valid, CEO will be driven high
regardless of
CEI.
28
CEI
Active-Low RAM Chip Enable Input.
CEI should be driven low to
enable the external RAM.
—
2, 3,
19, 23
N.C.
No Connection
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M83723/71W22199 | CONN RCPT 19POS WALL MT W/SCKT |
| M83723/71W22196 | CONN RCPT 19POS WALL MT W/SCKT |
| VE-BN2-IU-F4 | CONVERTER MOD DC/DC 15V 200W |
| VE-211-MX-B1 | CONVERTER MOD DC/DC 12V 75W |
| VE-BN2-IU-F3 | CONVERTER MOD DC/DC 15V 200W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1689S/R | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Serialized Real-Time Clocks with NV RAM Control |
| DS1689S/T | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3V/5V Serialized Real-Time Clocks with NV RAM Control |
| DS1689S/T&R | 制造商:Rochester Electronics LLC 功能描述: |
| DS1689S/T&R | 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 |
| DS1689S/T&R/ | 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。