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參數資料
| 型號： | M41ST85 |
| 廠商： | 意法半導體 |
| 英文描述： | 5.0 OR 3.0V, 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR |
| 中文描述： | 5.0或3.0V，512位64 × 8串行時鐘和NVRAM督導員 |
| 文件頁數： | 12/33頁 |
| 文件大?。?/td> | 464K |
| 代理商： | M41ST85 |
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M41ST85Y, M41ST85W
12/33
Figure 11. WRITE Cycle Timing: RTC & External SRAM Control Signals
Figure 12. Bus Timing Requirements Sequence
Table 6. AC Characteristics
Note: 1. Valid for Ambient Operating Temperature: T
A
= –40 to 85°C; V
CC
= 4.5 to 5.5V or 2.7 to 3.6V (except where noted).
2. Transmitter must internally provide a hold time to bridge the undefined region (300ns max) of the falling edge of SCL.
Symbol
Parameter
(1)
Min
Max
Unit
f
SCL
SCL Clock Frequency
0
400
kHz
t
BUF
Time the bus must be free before a new transmission can start
1.3
μs
t
EXPD
EX to E
CON
Propagation Delay
M41ST85Y
10
ns
M41ST85W
15
t
F
SDA and SCL Fall Time
300
ns
t
HD:DAT(2)
Data Hold Time
0
μs
t
HD:STA
START Condition Hold Time
(after this period the first clock pulse is generated)
600
ns
t
HIGH
Clock High Period
600
ns
t
LOW
Clock Low Period
1.3
μs
t
R
SDA and SCL Rise Time
300
ns
t
SU:DAT
Data Setup Time
100
ns
t
SU:STA
START Condition Setup Time
(only relevant for a repeated start condition)
600
ns
t
SU:STO
STOP Condition Setup Time
600
ns
AI03663
EX
ECON
tEXPD
tEXPD
AI00589
SDA
P
tSU:STO
tSU:STA
tHD:STA
SR
SCL
tSU:DAT
tF
tHD:DAT
tR
tHIGH
tLOW
tHD:STA
tBUF
S
P
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相關代理商/技術參數 |
參數描述 |
|---|---|
| M41ST85W | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 OR 3.0V, 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR |
| M41ST85W_06 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.0/3.3V I2C Combination Serial RTC, NVRAM Supervisor and Microprocessor Supervisor |
| M41ST85W_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.0/3.3V I2C combination serial RTC, NVRAM supervisor and microprocessor supervisor |
| M41ST85W_11 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.0/3.3 V I2C combination serial RTC, NVRAM supervisor and microprocessor supervisor |
| M41ST85WMH | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 OR 3.0V, 512 bit 64 x 8 SERIAL RTC and NVRAM SUPERVISOR |
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