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参数资料
| 型号： | M41ST85YMX6TR |
| 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, PDSO28 |
| 封装： | 0.300 INCH, PLASTIC, SOIC-28 |
| 文件页数： | 2/34页 |
| 文件大小： | 532K |
| 代理商： | M41ST85YMX6TR |
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M41ST85Y, M41ST85W
10/34
READ Mode
In this mode the master reads the M41ST85Y/W
slave after setting the slave address (see Figure
11., page 10). Following the WRITE Mode Control
Bit (R/W=0) and the Acknowledge Bit, the word
address 'An' is written to the on-chip address
pointer. Next the START condition and slave ad-
dress are repeated followed by the READ Mode
Control Bit (R/W=1). At this point the master trans-
mitter becomes the master receiver.
The data byte which was addressed will be trans-
mitted and the master receiver will send an Ac-
knowledge Bit to the slave transmitter. The
address pointer is only incremented on reception
of an Acknowledge Clock. The M41ST85Y/W
slave transmitter will now place the data byte at
address An+1 on the bus, the master receiver
reads and acknowledges the new byte and the ad-
dress pointer is incremented to An+2.
This cycle of reading consecutive addresses will
continue until the master receiver sends a STOP
condition to the slave transmitter (see Figure
The system-to-user transfer of clock data will be
halted whenever the address being read is a clock
address (00h to 07h). The update will resume ei-
ther due to a Stop Condition or when the pointer
increments to a non-clock or RAM address.
Note: This is true both in READ Mode and WRITE
Mode.
An alternate READ Mode may also be implement-
ed whereby the master reads the M41ST85Y/W
slave without first writing to the (volatile) address
pointer. The first address that is read is the last
one
stored
in
the
pointer
(see
Figure 11. Slave Address Location
Figure 12. READ Mode Sequence
AI00602
R/W
SLAVE ADDRESS
START
A
0
100
0
11
MSB
LSB
AI00899
BUS ACTIVITY:
ACK
S
ACK
NO
ACK
STOP
START
P
SDA LINE
BUS ACTIVITY:
MASTER
R/W
DATA n
DATA n+1
DATA n+X
WORD
ADDRESS (An)
SLAVE
ADDRESS
S
START
R/W
SLAVE
ADDRESS
ACK
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| M41ST85YMH6F | 1 TIMER(S), REAL TIME CLOCK, PDSO28 |
| M41ST85YMH6E | 1 TIMER(S), REAL TIME CLOCK, PDSO28 |
| M41T11MH6 | 0 TIMER(S), REAL TIME CLOCK, PDSO28 |
| M41T11M6 | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| M41T11MH6TR | 0 TIMER(S), REAL TIME CLOCK, PDSO28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M41ST85YSH | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5.0 OR 3.0V, 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR |
| M41ST87W | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5.0, 3.3, or 3.0V, 1280 bit (160 x8) Secure Serial RTC and NVRAM Supervisor with Tamper Detection |
| M41ST87W_11 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM |
| M41ST87WMX6 | 功能描述:实时时钟 Serial 1280 (160x8) 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 |
| M41ST87WMX6F | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM |
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