參數(shù)資料
型號： M48T129V-70CS1
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, PDSO32
封裝： 8 X 20 MM, PLASTIC, TSOP-32
文件頁數(shù)： 21/22頁
文件大?。?/td> 140K
代理商： M48T129V-70CS1
M48T129Y, M48T129V
8/22
Table 7. Power Down/Up Trip Points DC Characteristics (1)
(TA = 0 to 70 °C)
Note: 1. All voltages referenced to VSS.
2. At 25
°C.
Table 8. Power Down/Up AC Characteristics
(TA = 0 to 70 °C)
Note: 1. VPFD (max) to VPFD (min) fall time of less than tF may result in deselection/write protection not occurring until 50s after VCC passes
VPFD (min).
2. VPFD (min) to VSS fall time of less than tFB may cause corruption of RAM data.
Symbol
Parameter
Min
Typ
Max
Unit
VPFD
Power-fail Deselect Voltage
M48T129Y
4.2
4.35
4.5
V
M48T129V
2.7
2.9
3.0
V
VSO
Battery Back-up Switchover Voltage
M48T129Y
3.0
V
M48T129V
VPFD –100mV
V
tDR
(2)
Expected Data Retention Time
10
YEARS
Symbol
Parameter
Min
Max
Unit
tF
(1)
VPFD (max) to VPFD (min) VCC Fall Time
300
s
tFB
(2)
VPFD (min) to VSS VCC Fall Time
M48T129Y
10
s
M48T129V
150
s
tR
VPFD (min) to VPFD (max) VCC Rise Time
10
s
tRB
VSS to VPFD (min) VCC Rise Time
1
s
tREC
VPFD (max) to RST High
40
200
ms
Figure 6. Power Down/Up Mode AC Waveforms
AI01805
VCC
INPUTS
OUTPUTS
DON’T CARE
HIGH-Z
tF
tFB
tR
tRB
VALID
RECOGNIZED
VPFD (max)
VPFD (min)
VSO
tREC
RST
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相關代理商/技術參數(shù)
參數(shù)描述
M48T129V-70PM1 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.3V, 1 Mbit (128 Kbit x 8) TIMEKEEPER SRAM
M48T129V-85CS1 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 1 Mbit 128Kb x8 TIMEKEEPER SRAM
M48T129V-85PM1 功能描述:實時時鐘 1M (128Kx8) 85ns 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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M48T129VSH 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 1 Mbit 128Kb x8 TIMEKEEPER SRAM
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