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參數(shù)資料
| 型號(hào)： | DS1500YE |
| 廠商： | DALLAS SEMICONDUCTOR |
| 元件分類： | Timer or RTC |
| 英文描述： | REAL TIME CLOCK, PDSO32 |
| 封裝： | TSOP-32 |
| 文件頁數(shù)： | 2/25頁 |
| 文件大?。?/td> | 214K |
| 代理商： | DS1500YE |
DS1500/DS1510
10 of 25
BATTERY MONITOR
The DS1500/DS1510 constantly monitors the battery voltage of the back-up battery sources
(VBAT and VBAUX). The Battery Low Flags VRT1 and VRT2 will be set to a "1" if the battery voltage on
VBAT and VBAUX are less than 2.5V (typical), otherwise VRT1 and VRT2 will be a "0". VRT1 monitors
VBAT, and VRT2 monitors VBAUX.
POWER-UP DEFAULT STATES
These bits are set upon power-up: EOSC ="0", E32K ="0", TIE="0", KIE="0", WDE="0", and WDS="0".
256 X 8 EXTENDED RAM
The DS1500/DS1510 provides 256 x 8 of on-chip SRAM which is controlled as nonvolatile storage
sustained from a lithium battery. On power-up, the RAM is taken out of write protect status by an internal
signal.
Access to the SRAM is controlled by two on-chip latch registers. One register is used to hold the SRAM
address, and the other is used to hold read/write data. The SRAM address space is from 00h to FFh. The
8-bit address of the RAM location to be accessed must be loaded into the extended RAM address register
located at 10h. Data in the addressed location may be read by performing a read operation from location
13h, or written to by performing a write operation to location 13h. Data in any addressed location may be
read or written repeatedly with changing the address in location 10h.
To read or write consecutive extended RAM locations, a burst mode feature can be enabled to increment
the extended RAM address. To enable the burst mode feature, set the BME bit to a 1. With burst mode
enabled, write the extended RAM starting address location to register 10h. Then read or write the
extended RAM data from/to register 13h. The extended RAM address locations are automatically
incremented on the rising edge of OE , WE , or CS only when register 13h is being accessed. Refer to the
Burst Mode Timing Waveform (Figure 6).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS1500YEN | REAL TIME CLOCK, PDSO32 |
| DS1500YN | REAL TIME CLOCK, PDIP32 |
| DS1501WN | 1 TIMER(S), REAL TIME CLOCK, PDIP28 |
| DS1501YN | 1 TIMER(S), REAL TIME CLOCK, PDIP28 |
| DS1501WEN | 1 TIMER(S), REAL TIME CLOCK, PDSO28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1500YE+ | 功能描述:實(shí)時(shí)時(shí)鐘 Y2K-Compliant Watchdog 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 |
| DS1500YEN | 功能描述:IC RTC Y2KC W/NV CTRL 5V 32TSOP RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:時(shí)鐘/日歷 特點(diǎn):警報(bào)器，閏年，SRAM 存儲(chǔ)容量:- 時(shí)間格式:HH:MM:SS（12/24 小時(shí)） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件 |
| DS1500YEN+ | 功能描述:實(shí)時(shí)時(shí)鐘 Y2K-Compliant Watchdog 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 |
| DS1500YN | 功能描述:IC RTC Y2KC W/NV CTRL 5V 32-DIP RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 實(shí)時(shí)時(shí)鐘 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:時(shí)鐘/日歷 特點(diǎn):警報(bào)器，閏年，SRAM 存儲(chǔ)容量:- 時(shí)間格式:HH:MM:SS（12/24 小時(shí)） 數(shù)據(jù)格式:YY-MM-DD-dd 接口:SPI 電源電壓:2 V ~ 5.5 V 電壓 - 電源，電池:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-WDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:8-TDFN EP 包裝:管件 |
| DS1501 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Y2K-Compliant Watchdog Real-Time Clocks |
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