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參數(shù)資料
| 型號： | M41ST84 |
| 廠商： | 意法半導體 |
| 英文描述： | 5.0 OR 3.0V, 512 bit (64 x 8) Serial RTC with supervisory functions(具有監(jiān)控功能的5.0V或3.0V，512位(64 x 8)串行RTC) |
| 中文描述： | 5.0或3.0V，512位（64 × 8）（具有監(jiān)控功能的5.0V或3.0V，512位（64 × 8）串行時鐘監(jiān)督職能的串行時鐘） |
| 文件頁數(shù)： | 21/31頁 |
| 文件大?。?/td> | 181K |
| 代理商： | M41ST84 |
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M41ST84Y, M41ST84W
Power-on Reset
The M41ST84Y/W continuously monitors V
CC
.
When V
CC
falls to the power fail detect trip point,
the RSTpulls low (open drain) and remains lowon
power-up for t
REC
after V
CC
passes V
PFD
(max).
The RSTpin isan open drain output andan appro-
priate pull-up resistor should be chosen to control
rise time.
Reset Input(RSTIN)
The M41ST84Y/W provides an independent input
which can generate an output reset. The duration
and function of this reset isidentical toa reset gen-
erated by a power cycle. Table 12, page 21 and
Figure 19, page 21 illustrate the AC reset charac-
teristics of this function. Pulses shorter than t
RLRH
will not generate a reset condition. RSTIN is inter-
nally pulled up to V
CC
through a 100k
resistor.
Figure 19. RSTIN Timing Waveform
Note: With pull-up resistor
Table 12. Reset AC Characteristics
Note: 1. Valid for Ambient Operating Temperature: T
A
= –40 to 85
°
C; V
CC
= 2.7 to 3.6V or 4.5 to 5.5V (except where noted).
2. Pulse width lessthan 50ns will result in no RESET (for noise immunity).
3. Programmable (see Table 14, page 23)
Symbol
Parameter
(1)
Min
Max
Unit
t
RLRH(2)
RSTIN Low to RSTIN High
200
ns
t
RHRSH(3)
RSTIN High to RST High
2
ms
AI03682
RST
(1)
RSTIN
tRLRH
tRHRSH
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M41ST84W | 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 with SUPERVISORY FUNCTIONS |
| M41ST84W_08 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.0/3.3 V I2C serial RTC with 44 bytes of NVRAM and supervisory functions |
| M41ST84WMH | 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 with SUPERVISORY FUNCTIONS |
| M41ST84WMH1 | 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 with SUPERVISORY FUNCTIONS |
| M41ST84WMH1TR | 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 with SUPERVISORY FUNCTIONS |
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