参数资料
| 型号： | DS3234SN# |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/21页 |
| 文件大小： | 0K |
| 描述： | IC RTC W/TCXO 20-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 36 |
| 类型： | 时钟/日历 |
| 特点： | 警报器，闰年，NVSRAM，方波输出，TCXO/晶体 |
| 存储容量： | 256B |
| 时间格式： | HH:MM:SS（12/24 小时） |
| 数据格式： | YY-MM-DD-dd |
| 接口： | SPI |
| 电源电压： | 2 V ~ 5.5 V |
| 电压 - 电源，电池： | 2 V ~ 3.8 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 管件 |
| 产品目录页面： | 1434 (CN2011-ZH PDF) |
DS3234
Extremely Accurate SPI Bus RTC with
Integrated Crystal and SRAM
18
____________________________________________________________________
Address and data bytes are shifted MSB first into the
serial data input (DIN) and out of the serial data output
(DOUT). Any transfer requires the address of the byte
to specify a write or read, followed by one or more
bytes of data. Data is transferred out of the DOUT pin
for a read operation and into the DIN for a write opera-
tion (Figures 3 and 4).
The address byte is always the first byte entered after
CS is driven low. The most significant bit of this byte
determines if a read or write takes place. If the MSB is
0, one or more read cycles occur. If the MSB is 1, one
or more write cycles occur.
MODE
CS
SCLK
DIN
DOUT
Disable
H
Input Disabled
High Impedance
*CPOL = 1, SCLK Rising
Write
L
CPOL = 0, SCLK Falling
Data Bit Latch
High Impedance
CPOL = 1, SCLK Falling
Read
L
CPOL = 0, SCLK Rising
X
Next Data Bit Shift**
Read Invalid Location
L
Don’t Care
High Impedance
Table 3. SPI Pin Function
R/W
A6
A5
A4
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
CS
SCLK
DIN
DOUT
HIGH IMPEDANCE
Figure 3. SPI Single-Byte Write
A6
A5
A4
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
CS
SCLK
DIN
DOUT
HIGH IMPEDANCE
R/W
Figure 4. SPI Single-Byte Read
*
CPOL is the clock-polarity bit set in the control register of the host microprocessor.
**
DOUT remains at high impedance until 8 bits of data are ready to be shifted out during a read.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS3234SN# | 功能描述:实时时钟 Integrated RTC/TCXO/Crystal 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 |
| DS3234SN#T&R | 制造商:Maxim Integrated Products 功能描述:SPI BUS RTC W/INTEGR CRYSTAL AND SRAM 制造商:Maxim Integrated Products 功能描述:REAL TIME CLOCK SERL 256BYTE 20SOIC W - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC RTC SPI BUS W/TCXO 20-SOIC |
| DS3234SN#T&R | 功能描述:实时时钟 Integrated RTC/TCXO/Crystal 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 |
| DS3234SN#TR | 制造商:Maxim Integrated Products 功能描述:ACCURATE SPI BUS RTC WITH INTEGRATED CRYSTAL AND SRAM/ROHS - Bulk |
| DS3234SN+ | 功能描述:实时时钟 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 |
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