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參數(shù)資料
| 型號： | DS1747-70IND+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 10/16頁 |
| 文件大小： | 0K |
| 描述： | IC RTC RAM Y2K 5V 70NS 32-EDIP |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 11 |
| 類型： | 時鐘/日歷 |
| 特點： | 閏年，NVSRAM，Y2K |
| 存儲容量： | 512KB |
| 時間格式： | HH:MM:SS（24 小時） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | 并聯(lián) |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 32-DIP 模塊（0.600"，15.24mm） |
| 供應商設備封裝： | 32-EDIP |
| 包裝： | 管件 |
DS1747/DS1747P Y2K-Compliant, Nonvolatile Timekeeping RAMs
3 of 16
ORDERING INFORMATION
PART
SUPPLY
VOLTAGE
(V)
TEMP RANGE
PIN-PACKAGE
TOP MARK
DS1747-70+
5.0
0°C to +70°C
32 EDIP (0.740a)
DS1747-70+
DS1747-70IND+
5.0
-40°C to +85°C
32 EDIP (0.740a)
DS1747-70IND+
DS1747P-70+
5.0
0°C to +70°C
34 PowerCap*
DS1747P+70
DS1747P-70IND+
5.0
-40°C to +85°C
34 PowerCap*
DS1747P+70 IND
DS1747W-120+
3.3
0°C to +70°C
32 EDIP (0.740a)
DS1747W-120+
DS1747W-120IND+
3.3
-40°C to +85°C
32 EDIP (0.740a)
DS1747W-120IND+
DS1747WP-120+
3.3
0°C to +70°C
34 PowerCap*
DS1747WP+120
DS1747WP-120IND+
3.3
-40°C to +85°C
34 PowerCap*
DS1747WP+120 IND
+Denotes a lead(Pb)-free/RoHS-compliant package.
*DS9034PCX+ or DS9034I-PCX+ required (must be ordered separately).
A “+” indicates lead(Pb)-free. The top mark will include a “+” symbol on lead(Pb)-free devices.
DESCRIPTION
The DS1747 is a full-function, year-2000-compliant (Y2KC), real-time clock/calendar (RTC) and
512k x 8 nonvolatile static RAM. User access to all registers within the DS1747 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 DS1747 also
contains its own power-fail circuitry that 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.
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1747-70IND+ | 功能描述:實時時鐘 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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1747-70IND-W | 功能描述:實時時鐘 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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1747-DS1747P | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Y2K-Compliant, Nonvolatile Timekeeping RAMs |
| DS1747P | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Y2K-Compliant, Nonvolatile Timekeeping RAMs |
| DS1747P/YP/WP | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:PowerCap with Crystal |
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