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参数资料
| 型号： | M41T81M6 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封装： | 0.150 INCH, PLASTIC, SO-8 |
| 文件页数： | 14/27页 |
| 文件大小： | 388K |
| 代理商： | M41T81M6 |
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M41T81
Table 9. DC Characteristics
Note: 1. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 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 (VSO), VBAT (min) can be 2.0V for crystal with RS = 40K.
4. For rechargeable back-up, VBAT (max) may be considered VCC.
5. For IRQ/FT/OUT/SQW pin (Open Drain)
Table 10. Crystal Electrical Characteristics
Note: 1. Externally supplied. 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 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 32.768kHz 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
ILI
Input Leakage Current
0V
≤ VIN ≤ VCC
±1
A
ILO
Output Leakage Current
0V
≤ VOUT ≤ VCC
±1
A
ICC1
Supply Current
Switch Freq = 400kHz
400
A
ICC2
Supply Current (standby)
SCL,SDA = VCC – 0.3V
100
A
VIL
Input Low Voltage
–0.3
0.3VCC
V
VIH
Input High Voltage
0.7VCC
VCC + 0.3
V
VOL
Output Low Voltage
IOL = 3.0mA
0.4
V
Output Low Voltage (Open Drain)(5)
IOL = 10mA
0.4
V
Pull-up Supply Voltage (Open Drain)
IRQ/OUT/FT/SQW
5.5
V
VBAT
(2)
Battery Supply Voltage
2.5(3)
3
3.5(4)
V
IBAT
Battery Supply Current
TA = 25°C, VCC = 0V
Oscillator ON, VBAT = 3V
0.6
1
A
Sym
Parameter(1,2)
Min
Typ
Max
Units
fO
Resonant Frequency
32.768
kHz
RS
Series Resistance
60
k
CL
Load Capacitance
12.5
pF
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相关代理商/技术参数 |
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|---|---|
| M41T81M6E | 功能描述:实时时钟 Serial 512 (64x8) RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| M41T81M6F | 功能描述:实时时钟 Serial 512 (64x8) RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装: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 制造商全称:STMicroelectronics 功能描述:Serial Access Real-Time Clock with Alarms |
| M41T81MX | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:SERIAL ACCESS RTC WITH ALARMS |
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