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| 型号： | DS1248YP-70+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 12/19页 |
| 文件大小： | 0K |
| 描述： | IC NVSRAM 1MBIT 70NS 34PCM |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 40 |
| 类型： | Phantom 计时芯片 |
| 特点： | NVSRAM |
| 存储容量： | 128KB |
| 时间格式： | HH:MM:SS:hh（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | 并联 |
| 电源电压： | 4.5 V ~ 5.5 V |
| 电压 - 电源，电池： | 3V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 34-PowerCap? 模块 |
| 供应商设备封装： | 34-PowerCap 模块 |
| 包装： | 管件 |
| 产品目录页面： | 1432 (CN2011-ZH PDF) |
DS1248/DS1248P 1024K NV SRAM with Phantom Clock
2 of 19
ORDERING INFORMATION
PART
TEMP RANGE
VCC RANGE PIN-PACKAGE
DS1248Y-70+
0°C to +70°C
5V ±10%
32 EDIP
DS1248Y-70IND+
-40°C to +85°C
5V ±10%
32 EDIP
DS1248YP-70+
0°C to +70°C
5V ±10%
34 PowerCap*
DS1248W-120+
0°C to +70°C
3.3V ±10%
32 EDIP
DS1248W-120IND+
-40°C to +85°C
3.3V ±10%
32 EDIP
DS1248WP-120+
0°C to +70°C
3.3V ±10%
34 PowerCap*
DS1248WP-120IND+
-40°C to +85°C
3.3V ±10%
34 PowerCap*
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* DS9034PCX+ or DS9034I-PCX+ (PowerCap) required. Must be ordered separately.
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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1248YP-70+ | 功能描述:实时时钟 1024k NV SRAM w/Phantom Clock RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| DS1248YP70IND | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1024k NV SRAM with Phantom Clock |
| DS1249AB | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:2048k Nonvolatile SRAM |
| DS1249AB100 | 制造商:DALLAS 制造商全称: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 数据总线宽度:8 bit 存储容量:1024 Kbit 组织:128 K x 8 接口类型:Parallel 访问时间:70 ns 电源电压-最大:5.5 V 电源电压-最小:4.5 V 工作电流:85 mA 最大工作温度:+ 70 C 最小工作温度:0 C 封装 / 箱体:EDIP 封装:Tube |
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