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參數(shù)資料
| 型號： | DS1248YP-70 |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | Timer or RTC |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, DMA34 |
| 封裝： | POWERCAP, MODULE-34 |
| 文件頁數(shù)： | 11/18頁 |
| 文件大小： | 398K |
| 代理商： | DS1248YP-70 |
DS1248/DS1248P 1024k NV SRAM with Phantom Clock
2 of 18
ORDERING INFORMATION
PART
TEMP RANGE
VCC RANGE
PIN-PACKAGE
TOP MARK***
DS1248Y-70
0°C to +70°C
5V ±10%
32 EDIP
DS1248Y-70
DS1248Y-70IND
-40°C to +85°C
5V ±10%
32 EDIP
DS1248Y-70 IND
DS1248Y-100IND
-40°C to +85°C
5V ±10%
32 EDIP
DS1248Y-100 IND
DS1248YP-70
0°C to +70°C
5V ±10%
34 PowerCap*
DS1248YP-70
DS1248W-120
0°C to +70°C
3.3V ±10%
32 EDIP
DS1248W-120
DS1248W-120IND
-40°C to +85°C
3.3V ±10%
32 EDIP
DS1248W-120 IND
DS1248WP-120
0°C to +70°C
3.3V ±10%
34 PowerCap*
DS1248WP-120
DS1248WP-120IND
-40°C to +85°C
3.3V ±10%
34 PowerCap*
DS1248WP-120**
DS1248Y-70+
0°C to +70°C
5V ±10%
32 EDIP
DS1248Y-70
DS1248Y-70IND+
-40°C to +85°C
5V ±10%
32 EDIP
DS1248Y-70 IND
DS1248Y-100IND+
-40°C to +85°C
5V ±10%
32 EDIP
DS1248Y-100 IND
DS1248YP-70+
0°C to +70°C
5V ±10%
34 PowerCap*
DS1248YP-70
DS1248W-120+
0°C to +70°C
3.3V ±10%
32 EDIP
DS1248W-120
DS1248W-120IND+
-40°C to +85°C
3.3V ±10%
32 EDIP
DS1248W-120 IND
DS1248WP-120+
0°C to +70°C
3.3V ±10%
34 PowerCap*
DS1248WP-120
DS1248WP-120IND+
-40°C to +85°C
3.3V ±10%
34 PowerCap*
DS1248WP-120**
+ Denotes a lead(Pb)-free/RoHS-compliant device.
* DS9034PCX (PowerCap) required. Must be ordered separately.
** An “IND” is located in the lower right-hand corner of the label.
*** The top mark will include a “+” symbol on lead-free devices.
DETAILED DESCRIPTION
The DS1248 1024k NV SRAM with phantom clock is a fully static, nonvolatile RAM (organized as 128k
words by 8 bits) with a built-in real-time clock. The DS1248 has a self-contained lithium energy source
and control circuitry, which constantly monitors VCC for an out-of-tolerance condition. When such a
condition occurs, the lithium energy source is automatically switched on and writes protection is
unconditionally enabled to prevent garbled data in both the memory and real-time clock.
PACKAGES
The DS1248 is available in two packages: 32-pin DIP and 34-pin PowerCap module. The 32-pin DIP
style module integrates the crystal, lithium energy source, and silicon in one package. The 34-pin
PowerCap module board is designed with contacts for connection to a separate PowerCap (DS9034PCX)
that contains the crystal and battery. This design allows the PowerCap to be mounted on top of the
DS1248P after completion of the surface mount process. Mounting the PowerCap after the surface mount
process prevents damage to the crystal and battery because of the high temperatures required for solder
reflow. The PowerCap is keyed to prevent reverse insertion. The PowerCap module board and PowerCap
are ordered separately and shipped in separate containers.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1248W-120 | REAL TIME CLOCK, PDIP32 |
| DS1248WP-120 | REAL TIME CLOCK, DMA34 |
| DS1250ABP-70 | 512K X 8 NON-VOLATILE SRAM MODULE, 70 ns, DMA34 |
| DS1250AB-100 | 512K X 8 NON-VOLATILE SRAM MODULE, 100 ns, DIP32 |
| DS1250Y-100 | 512K X 8 NON-VOLATILE SRAM MODULE, 100 ns, DIP32 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1248YP-70+ | 功能描述:實時時鐘 1024k NV SRAM w/Phantom Clock 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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1248YP70IND | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:1024k NV SRAM with Phantom Clock |
| DS1249AB | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:2048k Nonvolatile SRAM |
| DS1249AB100 | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:2048k Nonvolatile SRAM |
| DS1249AB-100 | 功能描述:NVRAM 2048K NV SRAM RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)總線寬度:8 bit 存儲容量:1024 Kbit 組織:128 K x 8 接口類型:Parallel 訪問時間:70 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 工作電流:85 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 封裝 / 箱體:EDIP 封裝:Tube |
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