- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377826 > M41ST84W (意法半導(dǎo)體) 3.0/3.3V I2C Serial RTC with Supervisory Functions(帶監(jiān)視功能的3.0/3.3V I2C串行RTC) PDF資料下載
參數(shù)資料
| 型號： | M41ST84W |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 3.0/3.3V I2C Serial RTC with Supervisory Functions(帶監(jiān)視功能的3.0/3.3V I2C串行RTC) |
| 中文描述： | 3.0/3.3V I2C串行實(shí)時時鐘具有監(jiān)督職能（帶監(jiān)視功能的3.0/3.3V的I2C串行時鐘） |
| 文件頁數(shù)： | 24/29頁 |
| 文件大?。?/td> | 481K |
| 代理商： | M41ST84W |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁當(dāng)前第24頁第25頁第26頁第27頁第28頁第29頁
M41ST84W
24/29
Table 12. DC Characteristics
Note: 1. Valid for Ambient Operating Temperature: T
A
= –40 to 85°C; V
CC
= 2.7 to 3.6V (except where noted).
2. RSTIN internally pulled-up to V
CC
through 100K
resistor. WDI internally pulled-down to V
SS
through 100K
resistor.
3. Outputs deselected.
4. For PFO and SQW pins (CMOS).
5. For IRQ/FT/OUT, RST pins (Open Drain): if pulled-up to supply other than V
CC
, this supply must be equal to, or less than 3.0V when
V
CC
= 0V (during battery back-up mode).
6. For rechargeable back-up, V
BAT
(max) may be considered V
CC
.
Table 13. Crystal Electrical Characteristics (Externally Supplied)
Note: 1. Load capacitors are integrated within the M41ST84W. Circuit board layout considerations for the 32.768kHz crystal of minimum
trace lengths and isolation from RF generating signals should be taken into account.
2. STMicroelectronics recommends the KDS DT-38: 1TA/1TC252E127, Tuning Fork Type (thru-hole) or the DMX-26S:
1TJS125FH2A212, (SMD) quartz crystal for industrial temperature operations. KDS can be contacted at kouhou@kdsj.co.jp or ht-
tp://www.kdsj.co.jp for further information on this crystal type.
Sym
Parameter
Test Condition
(1)
M41ST84W
Unit
Min
Typ
Max
I
BAT
Battery Current OSC ON
T
A
= 25°C, V
CC
= 0V,
V
BAT
= 3V
400
500
nA
Battery Current OSC OFF
50
nA
I
CC1
Supply Current
f = 400kHz
0.75
mA
I
CC2
Supply Current (Standby)
SCL, SDA = V
CC
– 0.3V
or V
SS
+ 0.3V
0.50
mA
I
LI(2)
Input Leakage Current
0V
≤
V
IN
≤
V
CC
±1
μA
Input Leakage Current (PFI)
–25
2
25
nA
I
LO(3)
Output Leakage Current
0V
≤
V
OUT
≤
V
CC
±1
μA
V
IH
Input High Voltage
0.7V
CC
V
CC
+ 0.3
V
V
IL
Input Low Voltage
–0.3
0.3V
CC
V
V
BAT
Battery Voltage
2.5
3.0
3.5
(6)
V
V
OH
Output High Voltage
(4)
I
OH
= –1.0mA
2.4
V
V
OL
Output Low Voltage
I
OL
= 3.0mA
0.4
V
Output Low Voltage (Open Drain)
(5)
I
OL
= 10mA
0.4
V
Pull-up Supply Voltage (Open Drain)
RST, IRQ/FT/OUT
3.6
V
V
PFD
Power Fail Deselect
2.55
2.60
2.70
V
V
PFI
PFI Input Threshold
V
CC
= 3V(W)
1.225
1.250
1.275
V
PFI Hysteresis
PFI Rising
20
70
mV
V
SO
Battery Back-up Switchover
2.5
V
Symbol
Parameter
(1,2)
Typ
Min
Max
Unit
f
0
Resonant Frequency
32.768
kHz
R
S
Series Resistance
50
k
C
L
Load Capacitance
12.5
pF
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M41ST84Y(中文) | 512 bit (64 x 8) Serial RTC with Supervisory Functions |
| M41ST84 | 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) |
| M41ST85WMH6E | 3.0/3.3V I2C Combination Serial RTC, NVRAM Supervisor and Microprocessor Supervisor |
| M41ST85WMH6F | 3.0/3.3V I2C Combination Serial RTC, NVRAM Supervisor and Microprocessor Supervisor |
| M41ST85WMX6E | 3.0/3.3V I2C Combination Serial RTC, NVRAM Supervisor and Microprocessor Supervisor |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| M41ST84WMQ | 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。