M48T08-100PC 查看數據表（PDF） - STMicroelectronics
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M48T08-100PC Datasheet PDF : 73 Pages
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MK41T56
Figure 2A. DIP Pin Connections
MK41T56
OSCI 1
OSCO 2
8 VCC
7 FT/OUT
VBAT 3
VSS 4
6 SCL
5 SDA
AI00585C
Figure 2B. SO Pin Connections
OSCI
OSCO
VBAT
VSS
MK41T56
1
8
2
7
3
6
4
5
AI01062B
VCC
FT/OUT
SCL
SDA
Table 2. Absolute Maximum Ratings
Symbol
Parameter
Value
Unit
TA
Ambient Operating Temperature
0 to 70
–40 to 85
°C
TSTG
Storage Temperature (VCC Off, Oscillator Off)
–55 to 125
°C
VIO
Input or Output Voltages
–0.3 to 7
V
VCC
Supply Voltage
–0.3 to 7
V
IO
Output Current
20
mA
PD
Power Dissipation
0.25
W
Note: Stresses greater than those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress
rating only and functional operation of the device at these or any other conditions above those indicated in the operational section of this
specification is not implied. Exposure to the absolute maximum ratings conditions for extended periods of time may affect reliability.
CAUTION: Negative undershoots below –0.3 volts are not allowed on any pin while in the Battery Back-up mode.
Table 3. Register Map
Address
Data
D7
D6
D5
D4
D3
D2
D1
D0
0
ST
10 Seconds
1
X
10 Minutes
Seconds
Minutes
2
X
X
10 Hours
Hours
3
X
X
X
X
X
Day
4
X
X
10 Date
Date
5
X
X
X 10 M.
Month
6
10 Years
Years
7
OUT FT
S
Calibration
Keys: S = SIGN Bit; FT = FREQUENCY TEST Bit; ST = STOP Bit; OUT = Output level; X = Don’t care.
Function/Ran ge
BCD Format
Seconds
Minutes
Hour
Day
Date
Month
Year
Control
00-59
00-59
00-23
01-07
01-31
01-12
00-99
2/14
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