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參數(shù)資料
| 型號(hào)： | DS1747-70 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, DMA32 |
| 封裝： | EDIP MODULE-32 |
| 文件頁數(shù)： | 12/18頁 |
| 文件大?。?/td> | 476K |
| 代理商： | DS1747-70 |
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)
DS1747-70 IND
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-120 IND
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
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)
DS1747-70 IND
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-120 IND
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
*DS9034PCX, DS9034I-PCX, DS9034PCX+, DS9034I-PCX required (must be ordered separately).
A “+” indicates a lead free. The top mark will include a “+” symbol on lead-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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1747W-120 | REAL TIME CLOCK, PDMA32 |
| DS1747P-70 | REAL TIME CLOCK, DMA34 |
| DS1747WP-120 | REAL TIME CLOCK, DMA34 |
| DS1747 | REAL TIME CLOCK, DMA32 |
| DS1747P | REAL TIME CLOCK, DMA34 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1747-70+ | 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 |
| DS1747-70IND | 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 |
| DS1747-70IND+ | 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 |
| DS1747-70IND-W | 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 |
| DS1747-DS1747P | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Y2K-Compliant, Nonvolatile Timekeeping RAMs |
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