參數(shù)資料
型號(hào)： M41T81M6F
廠商： STMICROELECTRONICS
元件分類： 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述： 1 TIMER(S), REAL TIME CLOCK, PDSO8
封裝： 0.150 INCH, LEAD FREE, PLASTIC, SOIC-8
文件頁數(shù)： 15/29頁
文件大?。?/td> 454K
代理商： M41T81M6F
DC and AC parameters
M41T81
Doc ID 7529 Rev 10
Figure 15.
Power down/up mode AC waveforms
Table 9.
DC characteristics
Sym
Parameter
Test condition(1)
1.
Valid for ambient operating temperature: TA = –40 to 85°C; VCC = 2.0 to 5.5 V (except where noted).
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 = 400 kHz
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 = 3.0 mA
0.4
V
Output low voltage (open
drain)(2)
2.
For IRQ/FT/OUT/SQW pin (open drain)
IOL = 10 mA
0.4
V
Pull-up supply voltage
(open drain)
IRQ/OUT/FT/SQW
5.5
V
VBAT
(3)
3.
STMicroelectronics recommends the RAYOVAC BR1225 or BR1632 (or equivalent) as the battery supply.
Battery supply voltage
2.5(4)
4.
After switchover (VSO), VBAT (min) can be 2.0 V for crystal with RS = 40 kΩ.
33.5(5)
5.
For rechargeable backup, VBAT (max) may be considered VCC.
V
IBAT
Battery supply current
TA = 25 °C, VCC = 0 V
oscillator on, VBAT = 3 V
0.6
1
A
Table 10.
Crystal electrical characteristics
Sym
Parameter(1)(2)
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 32.768 kHz
crystal of minimum trace lengths and isolation from RF generating signals should be taken into account.
Min
Typ
Max
Units
fO
Resonant frequency
-
32.768
kHz
RS
Series resistance
-
60
k
Ω
CL
Load capacitance
-
12.5
pF
AI00596
VCC
trec
tPD
VSO
SDA
SCL
DON'T CARE
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M41T81MX6 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
M41T81MX6TR 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
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