- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9354 > DS1244WP-120IND+ (Maxim Integrated Products)IC NVSRAM 256KBIT 120NS 34PCM PDF資料下載
參數(shù)資料
| 型號： | DS1244WP-120IND+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 19/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC NVSRAM 256KBIT 120NS 34PCM |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 40 |
| 類型： | Phantom 計時芯片 |
| 特點： | 閏年，NVSRAM |
| 存儲容量： | 32KB |
| 時間格式： | HH:MM:SS:hh（12/24 小時） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | 并聯(lián) |
| 電源電壓： | 2.97 V ~ 3.63 V |
| 電壓 - 電源，電池： | 3V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 34-PowerCap? 模塊 |
| 供應(yīng)商設(shè)備封裝： | 34-PowerCap 模塊 |
| 包裝： | 管件 |
| 相關(guān)產(chǎn)品： | DS9034PCI+-ND - IC SRAM NV TIMEKEEPING POWERCAP DS9034I-PCX+-ND - IC SRAM NV TIMEKEEPING POWERCAP DS9034PC+-ND - PCM W/O CRYSTAL NV SRAM SNAP-ON DS9034PCX+-ND - PCM W/CRYSTAL NV SRAM SNAP-ON DS9034PCI-ND - IC SRAM NV TIMEKEEPING POWERCAP DS90340I-PCX-ND - IC SRAM NV TIMEKEEPING POWERCAP DS9034PC-ND - PCM W/O CRYSTAL NV SRAM SNAP-ON |
DS1244/DS1244P
8 of 20
BATTERY LONGEVITY
The DS1244 has a lithium power source that is designed to provide energy for clock activity and clock
and RAM data retention when the VCC supply is not present. The capability of this internal power supply
is sufficient to power the DS1244 continuously for the life of the equipment in which it is installed. For
specification purposes, the life expectancy is 10 years at +25°C with the internal clock oscillator running
in the absence of VCC power. Each DS1244 is shipped from Maxim with its lithium energy source
disconnected, guaranteeing full energy capacity. When VCC is first applied at a level greater than VPF , the
lithium energy source is enabled for battery-backup operation. Actual life expectancy of the DS1244 will
be much longer than 10 years since no lithium battery energy is consumed when VCC is present.
See “Conditions of Acceptability” at www.maxim-ic.com/TechSupport/QA/ntrl.htm.
CLOCK ACCURACY (DIP MODULE)
The DS1244 is guaranteed to keep time accuracy to within ±1 minute per month at +25°C. The clock is
calibrated at the factory by Maxim using special calibration nonvolatile tuning elements and does not
require additional calibration. For this reason, methods of field clock calibration are not available and not
necessary.
CLOCK ACCURACY (POWERCAP MODULE)
The DS1244P and DS9034PCX are each individually tested for accuracy. Once mounted together, the
module will typically keep time accuracy to within ±1.53 minutes per month (35ppm) at +25°C.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VE-25F-MX-B1 | CONVERTER MOD DC/DC 72V 75W |
| VE-B6M-IU-S | CONVERTER MOD DC/DC 10V 200W |
| DS17885-5+ | IC RTC 5V 8K NV RAM 24-DIP |
| DS17885-3+ | IC RTC 3V 8K NV RAM 24-DIP |
| DS1553-100+ | IC RTC RAM Y2K 5V 100NS 28-EDIP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1244WP-120IND+ | 功能描述:實時時鐘 256k 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 |
| DS1244Y | 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:Real Time Clock, Non-Volatile, 28 Pin, Plastic, DIP |
| DS1244Y120 | 制造商:Maxim Integrated Products 功能描述: |
| DS1244Y-120 | 制造商:Maxim Integrated Products 功能描述: |
| DS1244Y-150 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。