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參數(shù)資料
| 型號(hào)： | DS1746WP-120 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類(lèi)： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, DMA34 |
| 封裝： | POWERCAP, MODULE-34 |
| 文件頁(yè)數(shù)： | 13/19頁(yè) |
| 文件大?。?/td> | 367K |
| 代理商： | DS1746WP-120 |
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DS1746/DS1746P Y2K-Compliant, Nonvolatile Timekeeping RAMs
3 of 19
ORDERING INFORMATION
PART
VOLTAGE
RANGE
(V)
TEMP RANGE
PIN-PACKAGE
TOP MARK
DS1746-70+
5.0
0°C to +70°C
32 EDIP (0.740a)
DS1746+70
DS1746-70
5.0
0°C to +70°C
32 EDIP (0.740a)
DS1746-70
DS1746-70 IND
5.0
-40°C to +85°C
32 EDIP (0.740a)
DS1746-70 IND
DS1746W-120+
3.3
0°C to +70°C
32 EDIP (0.740a)
DS1746W+120
DS1746W-120
3.3
0°C to +70°C
32 EDIP (0.740a)
DS1746W-120
DS1746W-120 IND
3.3
-40°C to +85°C
32 EDIP (0.740a)
DS1746W-120 IND
DS1746P-70+
5.0
0°C to +70°C
34 PowerCap*
DS1746P+70
DS1746P-70
5.0
0°C to +70°C
34 PowerCap*
DS1746P-70
DS1746P-70 IND
5.0
-40°C to +85°C
34 PowerCap*
DS1746P-70 IND
DS1746WP-120+
3.3
0°C to +70°C
34 PowerCap*
DS1746WP+120
DS1746WP-120
3.3
0°C to +70°C
34 PowerCap*
DS1746WP-120
DS1746WP-120 IND
3.3
-40°C to +85°C
34 PowerCap*
DS1746WP-120 IND
*DS9034-PCX, DS9034I-PCX, DS9034-PCX+ required (must be ordered separately).
A “+” indicates lead-free product. The top mark will include a “+” symbol on lead-free devices.
DESCRIPTION
The DS1746 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and
128k x 8 nonvolatile static RAM. User access to all registers within the DS1746 is accomplished with a
byte-wide interface as shown in Figure 1. The RTC information and control bits reside in the eight
uppermost RAM locations. The RTC registers contain century, year, month, date, day, hours, minutes,
and seconds data in 24-hour binary-coded decimal (BCD) format. Corrections for the date of each month
and leap year are made automatically. The RTC clock registers are double buffered to avoid access of
incorrect data that can occur during clock update cycles. The double-buffered system also prevents time
loss as the timekeeping countdown continues unabated by access to time register data. The DS1746 also
contains its own power-fail circuitry, which deselects the device when the VCC supply is in an out of
tolerance condition. This feature prevents loss of data from unpredictable system operation brought on by
low VCC as errant access and update cycles are avoided.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1746W-120 | 0 TIMER(S), REAL TIME CLOCK, DIP32 |
| DS1746P-70 | 0 TIMER(S), REAL TIME CLOCK, DMA34 |
| DS1746 | REAL TIME CLOCK, DMA32 |
| DS1746P | REAL TIME CLOCK, DMA34 |
| DS1747-70 | 0 TIMER(S), REAL TIME CLOCK, DMA32 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1746WP-120+ | 功能描述:實(shí)時(shí)時(shí)鐘 Timekeeping NV RAM 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 |
| DS1746WP-120IND | 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 |
| DS1746WP-120IND+ | 功能描述:實(shí)時(shí)時(shí)鐘 Timekeeping NV RAM 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 |
| DS1747 | 制造商:DALLAS 制造商全稱(chēng):Dallas Semiconductor 功能描述:Y2K-Compliant, Nonvolatile Timekeeping RAMs |
| DS1747_10 | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Y2K-Compliant, Nonvolatile Timekeeping RAMs |
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