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參數(shù)資料
| 型號： | DS1302SN-16/T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 12/13頁 |
| 文件大小： | 0K |
| 描述： | IC TIMEKEEPER T-CHRG IND 16-SOIC |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1,000 |
| 類型： | 時鐘/日歷 |
| 特點： | 閏年，NVSRAM，涓流充電器 |
| 存儲容量： | 31B |
| 時間格式： | HH:MM:SS（12/24 小時） |
| 數(shù)據(jù)格式： | YY-MM-DD-dd |
| 接口： | 3 線串口 |
| 電源電壓： | 2 V ~ 5.5 V |
| 電壓 - 電源，電池： | 2 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SOIC W |
| 包裝： | 帶卷 (TR) |
DS1302 Trickle-Charge Timekeeping Chip
8 of 13
CLOCK/CALENDAR BURST MODE
The clock/calendar command byte specifies burst mode operation. In this mode, the first eight clock/calendar
registers can be consecutively read or written (see Table 3) starting with bit 0 of address 0.
If the write-protect bit is set high when a write clock/calendar burst mode is specified, no data transfer will occur to
any of the eight clock/calendar registers (this includes the control register). The trickle charger is not accessible in
burst mode.
At the beginning of a clock burst read, the current time is transferred to a second set of registers. The time
information is read from these secondary registers, while the clock may continue to run. This eliminates the need to
re-read the registers in case of an update of the main registers during a read.
RAM
The static RAM is 31 x 8 bytes addressed consecutively in the RAM address space.
RAM BURST MODE
The RAM command byte specifies burst mode operation. In this mode, the 31 RAM registers can be consecutively
read or written (see Table 3) starting with bit 0 of address 0.
REGISTER SUMMARY
A register data format summary is shown in Table 3.
CRYSTAL SELECTION
A 32.768kHz crystal can be directly connected to the DS1302 via pins 2 and 3 (X1, X2). The crystal selected for
use should have a specified load capacitance (CL) of 6pF. For more information on crystal selection and crystal
layout consideration, refer to
Application Note 58: Crystal Considerations for Dallas Real-Time Clocks.
Figure 4. Data Transfer Summary
A1
A2
A3
A4 R/C
1
CE
SCLK
I/O
R/W A0
D1
D2
D3
D4
D5
D6
D7
D0
SINGLE-BYTE READ
A1
A2
A3
A4 R/C
1
CE
SCLK
I/O
R/W A0
D1
D2
D3
D4
D5
D6
D7
D0
SINGLE-BYTE WRITE
NOTE: IN BURST MODE, CE IS KEPT HIGH AND ADDITIONAL SCLK CYCLES ARE SENT UNTIL THE END OF THE BURST.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS1302SNT&R | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 31BYTE 8SOIC - Tape and Reel |
| DS1302Z | 功能描述:實時時鐘 Trickle-Charge Timekeeping Chip 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| DS1302Z/T&R | 制造商:Maxim Integrated Products 功能描述:IC TIMEKEEPER T-CHARGE 8-SOIC 制造商:Maxim Integrated Products 功能描述:IC RTC YY-MM-DD 31 X 8 SOIC-8 制造商:Maxim Integrated Products 功能描述:IC, RTC, YY-MM-DD, 31 X 8, SOIC-8 |
| DS1302Z/T&R+ | 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 31BYTE 8SOIC - Tape and Reel |
| DS1302Z/T&R | 功能描述:實時時鐘 Trickle-Charge Timekeeping Chip 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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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