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參數(shù)資料
| 型號(hào)： | M41T81M6 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | SERIAL ACCESS RTC WITH ALARMS |
| 中文描述： | 串行訪問時(shí)鐘用鬧鐘 |
| 文件頁數(shù)： | 8/28頁 |
| 文件大?。?/td> | 386K |
| 代理商： | M41T81M6 |
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M41T81
8/28
Table 5. DC Characteristics
Note: 1. Valid for Ambient Operating Temperature: T
A
= –40 to 85°C; V
CC
= 2.0 to 5.5V (except where noted).
2. STMicroelectronics recommends the RAYOVAC BR1225 or BR1632 (or equivalent) as the battery supply.
3. After switchover (V
SO
), V
BAT
(min) can be 2.0V for crystal with R
S
= 40K
.
4. For rechargeable back-up, V
BAT
(max) may be considered V
CC
.
5. For IRQ/FT/OUT/SQW pin (Open Drain)
Table 6. Crystal Electrical Characteristics
Note: 1. Externally supplied if using the SO8 package. 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 con-
tacted at kouhou@kdsj.co.jp or http://www.kdsj.co.jp for further information on this crystal type.
2. Load capacitors are integrated within the M41T81. Circuit board layout considerations for the 32.768 kHz crystal of minimum trace
lengths and isolation from RF generating signals should be taken into account.
Sym
Parameter
Test Condition
(1)
Min
Typ
Max
Unit
I
LI
Input Leakage Current
0V
≤
V
IN
≤
V
CC
±1
μ
A
I
LO
Output Leakage Current
0V
≤
V
OUT
≤
V
CC
±1
μ
A
I
CC1
Supply Current
Switch Freq = 400kHz
400
μ
A
I
CC2
Supply Current (standby)
SCL,SDA = V
CC
– 0.3V
100
μ
A
V
IL
Input Low Voltage
–0.3
0.3V
CC
V
V
IH
Input High Voltage
0.7V
CC
V
CC
+ 0.3
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
V
BAT(2)
Battery Supply Voltage
2.5
(3)
3
3.5
(4)
V
I
BAT
Battery Supply Current
T
A
= 25°C, V
CC
= 0V
Oscillator ON, V
BAT
= 3V
0.6
1
μA
Sym
Parameter
(1,2,3)
Min
Typ
Max
Units
f
O
Resonant Frequency
32.768
kHz
R
S
Series Resistance
60
k
C
L
Load Capacitance
12.5
pF
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M41T81M6E | 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| M41T81M6F | 功能描述:實(shí)時(shí)時(shí)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(shí)間格式:HH:MM:SS RTC 存儲(chǔ)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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| M41T81M6F-CUT TAPE | 制造商:ST 功能描述:M41T Series 2 V Serial I2C Real Time Clock with Alarm - SOIC-8 |
| M41T81M6TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial Access Real-Time Clock with Alarms |
| M41T81MX | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SERIAL ACCESS RTC WITH ALARMS |
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