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參數(shù)資料
| 型號： | M41T11M |
| 廠商： | 意法半導體 |
| 英文描述： | 512 bit 64b x8 Serial Access TIMEKEEPER SRAM |
| 中文描述： | 512位64B條x8串行SRAM的訪問計時器 |
| 文件頁數(shù)： | 8/19頁 |
| 文件大?。?/td> | 137K |
| 代理商： | M41T11M |
M41T11
8/19
Table 10. AC Characteristics
(T
A
= –40 to 85 °C; V
CC
= 2.0V to 5.5V)
Symbol
Note: 1. Transmitter must internally provide a hold time to bridge the undefined region (300ns max.) of the falling edge of SCL.
Parameter
Min
Max
Unit
f
SCL
SCL Clock Frequency
0
100
kHz
t
LOW
Clock Low Period
4.7
μs
t
HIGH
Clock High Period
4
μs
t
R
SDA and SCL Rise Time
1
μs
t
F
SDA and SCL Fall Time
300
ns
t
HD:STA
START Condition Hold Time
(after this period the first clock pulse is generated)
4
μs
t
SU:STA
START Condition Setup Time
(only relevant for a repeated start condition)
4.7
μs
t
SU:DAT
Data Setup Time
250
ns
t
HD:DAT
(1)
Data Hold Time
0
μs
t
SU:STO
STOP Condition Setup Time
4.7
μs
t
BUF
Time the bus must be free before a new transmission can start
4.7
μs
WRITE MODE
In this mode the master transmitter transmits to
the M41T11 slave receiver. Bus protocol is shown
in Figure 10. Following the START condition and
slave address, a logic ’0’ (R/W = 0) is placed on the
bus and indicates to the addressed device that
word address An will follow and is to be written to
the on-chip address pointer. The data word to be
written to the memory is strobed in next and the in-
ternal address pointer is incremented to the next
memory location within the RAM on the reception
of an acknowledge clock. The M41T11 slave re-
ceiver will send an acknowledge clock to the mas-
ter transmitter after it has received the slave
address and again after it has received the word
address and each data byte (see Figure 9).
READ MODE
In this mode, the master reads the M41T11 slave
after setting the slave address (see Figure 11).
Following the write mode control bit (R/W = 0) and
the acknowledge bit, the word address A
n
is writ-
ten to the on-chip address pointer. Next the
START condition and slave address are repeated,
followed by the READ mode control bit (R/W = 1).
At this point, the master transmitter becomes the
master receiver. The data byte which was ad-
dressed will be transmitted and the master receiv-
er will send an acknowledge bit to the slave
transmitter. The address pointer is only increment-
ed on reception of an acknowledge bit. The
M41T11 slave transmitter will now place the data
byte at address A
n
+ 1 on the bus. The master re-
ceiver reads and acknowledges the new byte and
the address pointer is incremented to A
n
+ 2.
This cycle of reading consecutive addresses will
continue until the master receiver sends a STOP
condition to the slave transmitter.
An alternate READ mode may also be implement-
ed, whereby the master reads the M41T11 slave
without first writing to the (volatile) address point-
er. The first address that is read is the last one
stored in the pointer, see Figure 12.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M41T11M6 | 功能描述:實時時鐘 Serial 512 (64x8) 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 |
| M41T11M6E | 功能描述:實時時鐘 Serial 512 (64x8) 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 |
| M41T11M6F | 功能描述:實時時鐘 Serial 512 (64x8) 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 |
| M41T11M6TR | 制造商:STMicroelectronics 功能描述: |
| M41T11MH | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:512 bit 64b x8 Serial Access TIMEKEEPER SRAM |
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