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参数资料
| 型号： | M41T94MQ6E |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO16 |
| 封装： | ROHS COMPLIANT, PLASTIC, SOIC-16 |
| 文件页数： | 5/41页 |
| 文件大小： | 352K |
| 代理商： | M41T94MQ6E |
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M41T94
Operation
3.1
SPI bus characteristics
The serial peripheral interface (SPI) bus is intended for synchronous communication
between different ICs. It consists of four signal lines: serial data input (SDI), serial data
output (SDO), serial clock (SCL) and a chip enable (E).
By definition a device that gives out a message is called “transmitter,” the receiving device
that gets the message is called “receiver.” The device that controls the message is called
“master.” The devices that are controlled by the master are called “slaves.”
The E input is used to initiate and terminate a data transfer. The SCL input is used to
synchronize data transfer between the master (micro) and the slave (M41T94) devices.
The SCL input, which is generated by the microcontroller, is active only during address and
data transfer to any device on the SPI bus (see Figure 5 on page 9).
The M41T94 can be driven by a microcontroller with its SPI peripheral running in either of
the two following modes:
●
(CPOL, CPHA) = ('0', '0') or
●
(CPOL, CPHA) = ('1', '1').
For these two modes, input data (SDI) is latched in by the low-to-high transition of clock
SCL, and output data (SDO) is shifted out on the high-to-low transition of SCL (see Table 2
There is one clock for each bit transferred. Address and data bits are transferred in groups
of eight bits. Due to memory size the second most significant address bit is a Don’t Care
(address bit 6).
Figure 7.
Input timing requirements
AI04633
SCL
SDI
E
MSB IN
SDO
tDVCH
HIGH IMPEDANCE
LSB IN
tELCH
tCHDX
tDLDH
tDHDL
tCHCL
tCLCH
tEHCH
tEHEL
tCHEH
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M41T94MQ6F | 功能描述:实时时钟 Serial 512 (64x8) 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 |
| M41T94MQ6TR | 功能描述:实时时钟 Advanced Analog 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 |
| M41T94SH | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:512 Bit 64 bit x8 SERIAL RTC SPI SRAM |
| M41TC8025 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Highly accurate, temperature-compensated serial real-time clock (RTC) with embedded crystal |
| M41TC8025AMC6F | 制造商:STMicroelectronics 功能描述:Real Time Clock Serial 14-Pin SOIC T/R 制造商:STMicroelectronics 功能描述:HIGH-END SENSOR AND ANALOG - Tape and Reel 制造商:STMicroelectronics 功能描述:HIGH-END SENSOR and ANALOG |
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