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參數(shù)資料
| 型號： | M48T251Y-70PM1 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數(shù)據(jù)恢復及定時提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDIP32 |
| 封裝： | PLASTIC, MODULE, DIP-32 |
| 文件頁數(shù)： | 10/24頁 |
| 文件大?。?/td> | 366K |
| 代理商： | M48T251Y-70PM1 |
M48T251Y, M48T251V
18/24
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 9. DC and AC Measurement Conditions
Note: Output High Z is defined as the point where data is no longer driven (see Table 9., page 18).
Figure 12. AC Testing Load Circuit
Note: 50pF for M48T251V.
Table 10. Capacitance
Note: 1. Effective capacitance measured with power supply at 5V. Sampled only; not 100% tested.
2. At 25°C, f = 1MHz.
3. Outputs were deselected.
Parameter
M48T251Y
M48T251V
VCC Supply Voltage
4.5 to 5.5V
3.0 to 3.6V
Ambient Operating Temperature
0 to 70°C
Load Capacitance (CL)
100pF
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
680
1.1 K
VCCI
AI04240
Symbol
Parameter(1,2)
Min
Max
Unit
CIN
Input Capacitance
10
pF
CIO
(3)
Input / Output Capacitance
10
pF
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M48T251Y-70PM1TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM |
| M48T251Y-85PM1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM |
| M48T251Y-85PM1TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM |
| M48T251YPM | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.3V, 4096K TIMEKEEPER SRAM with PHANTOM |
| M48T254V-10ZA1 | 功能描述:實時時鐘 16M (2Mx8) 100ns 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 時間格式:HH:MM:SS RTC 存儲容量: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: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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