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参数资料
| 型号： | M48T18-150MH1TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO28 |
| 封装： | 0.330 INCH, SNAPHAT, PLASTIC, SOH-28 |
| 文件页数： | 8/29页 |
| 文件大小： | 184K |
| 代理商： | M48T18-150MH1TR |
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M48T08, M48T18
16/29
Table 9. Power Down/Up AC Characteristics
Note: 1. Valid for Ambient Operating Temperature: TA = 0 to 70°C; VCC = 4.75 to 5.5V or 4.5 to 5.5V (except where noted).
2. VPFD (max) to VPFD (min) fall time of less than tF may result in deselection/write protection not occurring until 200s after VCC pass-
es VPFD (min).
3. VPFD (min) to VSS fall time of less than tFB may cause corruption of RAM data.
Table 10. Power Down/Up Trip Points DC Characteristics
Note: 1. All voltages referenced to VSS.
2. Valid for Ambient Operating Temperature: TA = 0 to 70°C; VCC = 4.75 to 5.5V or 4.5 to 5.5V (except where noted).
Symbol
Parameter(1)
Min
Max
Unit
tPD
E1 or W at VIH or E2 at VIL before Power Down
0
s
tF
(2)
VPFD (max) to VPFD (min) VCC Fall Time
300
s
tFB
(3)
VPFD (min) to VSS VCC Fall Time
10
s
tR
VPFD (min) to VPFD (max) VCC Rise Time
0s
tRB
VSS to VPFD (min) VCC Rise Time
1s
tREC
E1 or W at VIH or E2 at VIL before Power Up
1ms
tPFX
INT Low to Auto Deselect
10
40
s
tPFH
VPFD (max) to INT High
120
s
Symbol
Parameter(1,2)
Min
Typ
Max
Unit
VPFD
Power-fail Deselect Voltage
M48T08
4.5
4.6
4.75
V
M48T18
4.2
4.3
4.5
V
VSO
Battery Back-up Switchover Voltage
3.0
V
tDR
Expected Data Retention Time
10
YEARS
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相关代理商/技术参数 |
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|---|---|
| M48T18-150PC | 制造商:STMicroelectronics 功能描述:SRAM TIMEKEEPER 64K 48T18 DIP28 制造商:STMicroelectronics 功能描述:IC, TIMEKEEPER, YY-MM-DD-dd, 8KX8, DIP28, Date Format:YY-MM-DD-dd, Clock Format: |
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| M48T18-150PC1 | 功能描述:实时时钟 64K (8Kx8) 150ns RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
| M48T18-150PC1E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
| M48T18-150PC1F | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:64 Kbit 8Kb x 8 TIMEKEEPER SRAM |
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