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參數(shù)資料
| 型號(hào)： | M41T256YMT7F |
| 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： | REAL TIME CLOCK, PDSO44 |
| 封裝： | 0.330 INCH, LEAD FREE, PLASTIC, SOIC-44 |
| 文件頁數(shù)： | 16/30頁 |
| 文件大小： | 353K |
| 代理商： | M41T256YMT7F |
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M41T256Y
DC and AC parameters
5
DC and AC parameters
This section summarizes the operating and measurement conditions, as well as the DC and
AC characteristics of the device. The parameters in the following DC and AC Characteristic
tables are derived from tests performed under the Measurement Conditions listed in Table 6:
DC and AC measurement conditions. Designers should check that the operating conditions
in their projects match the measurement conditions when using the quoted parameters.
Table 6.
DC and AC measurement conditions
Figure 13.
AC testing input/output waveforms
Table 7.
Capacitance
Parameter
M41T256Y
VCC Supply voltage
4.5 to 5.5V
Ambient operating temperature
–25 to 70°C
Load capacitance (CL)
100pF
Input rise and fall times
≤ 50ns
Input pulse voltages
0.2VCC to 0.8VCC
Input and output timing ref. voltages
0.3VCC to 0.7VCC
Symbol
Parameter(1) and (2)
1.
Effective capacitance measured with power supply at 5V; sampled only, not 100% tested.
2.
At 25°C, f = 1MHz.
Min
Max
Unit
CIN
Input capacitance
7
pF
Input capacitance (tamper pin)
1000
pF
CIO
(3)
3.
Outputs deselected.
Input / output capacitance
10
pF
tLP
Low-pass filter input time constant (SDA and SCL)
50
ns
AI02568
0.8VCC
0.2VCC
0.7VCC
0.3VCC
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