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| 型號(hào)： | M48T254V-10ZA1 |
| 廠(chǎng)商： | STMICROELECTRONICS |
| 元件分類(lèi)： | 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取 |
| 英文描述： | REAL TIME CLOCK, PBGA168 |
| 封裝： | 42.50 X 42.50 MM, 1.27 MM PITCH, BGA-168 |
| 文件頁(yè)數(shù)： | 10/26頁(yè) |
| 文件大?。?/td> | 366K |
| 代理商： | M48T254V-10ZA1 |
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M48T254V
18/26
DC AND AC PARAMETERS
This section summarizes the operating and mea-
surement 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 Measure-
ment Conditions listed in the relevant tables. De-
signers should check that the operating conditions
in their projects match the measurement condi-
tions when using the quoted parameters.
Table 6. DC and AC Measurement Conditions
Note: Output Hi-Z is defined as the point where data is no longer driven.
Figure 13. AC Testing Load Circuit
Table 7. Capacitance
Note: 1. Effective capacitance measured with power supply at 3V. Sampled only; not 100% tested.
2. At 25°C, f = 1MHz.
3. Outputs were deselected.
Parameter
M41T254V
VCC Supply Voltage
3.0 to 3.6V
Ambient Operating Temperature
0 to 70°C
Load Capacitance (CL)
50pF
Input Rise and Fall Times
≤ 5ns
Input Pulse Voltages
0 to 3V
Input and Output Timing Ref. Voltages
1.5V
CL = 50 pF
DEVICE
UNDER
TEST
645
AI04644
1.75V
Symbol
Parameter(1,2)
Min
Max
Unit
CIN
Input Capacitance (A0-A18, OE, WE, CE)40
pF
Input Capacitance (A19-A20)
10
pF
COUT
Output Capacitance (BL)20
pF
CIO
(3)
Input / Output Capacitance
40
pF
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