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參數(shù)資料
| 型號： | M48T559YMH1F |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | REAL TIME CLOCK, PDSO28 |
| 封裝： | 0.330 INCH, LEAD FREE, PLASTIC, SOH-28 |
| 文件頁數(shù)： | 6/26頁 |
| 文件大小： | 364K |
| 代理商： | M48T559YMH1F |
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M48T559Y
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Reset Inputs (RSTIN1 & RSTIN2)
The M48T559Y provides two independent inputs
which can generate an output reset. The duration
and function of these resets is identical to a reset
illustrate the AC reset characteristics of this func-
tion. Pulses shorter than tR1 and tR2 will not gener-
ate a reset condition. RSTIN1 and RSTIN2 are
each internally pulled up to VCC through a 100k
resistor.
Battery Low Warning
The M48T559Y checks its battery voltage on pow-
er-up. The BL (Battery Low) Bit (D4 of 1FF0h) will
be set on power-up if the battery voltage is less
than 2.5V (typical).
Initial Power-on Defaults
Upon application of power to the device, the fol-
lowing register bits are set to a '0' state: WDS;
BMB0-BMB4; RB0-RB1; AFE; ABE; W; R; and FT.
Figure 9. RSTIN1 & RSTIN2 Timing Waveforms
Table 6. Reset AC Characteristics
Note: 1. Valid for Ambient Operating Temperature: TA = 0 to 70°C; VCC = 4.5 to 5.5V (except where noted).
Symbol
Parameter(1)
Min
Max
Unit
tR1
RSTIN1 Low to RST Low
50
200
ns
tR2
RSTIN2 Low to RST Low
20
100
ms
tR1HRZ
(2)
RSTIN1 High to RST Hi-Z
40
200
ms
tR2HRZ
(2)
RSTIN2 High to RST Hi-Z
40
200
ms
AI01679
RSTIN1
RST
RSTIN2
tR1
tR1HRZ
Hi-Z
tR2
tR2HRZ
Hi-Z
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M48T559YMH1TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:64 Kbit 8Kb x8 TIMEKEEPER SRAM with ADDRESS/DATA MULTIPLEXED |
| M48T559YSH | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:64 Kbit 8Kb x8 TIMEKEEPER SRAM with ADDRESS/DATA MULTIPLEXED |
| M48T58 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0V, 64 Kbit (8 Kb x 8) TIMEKEEPER SRAM |
| M48T58_07 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0V, 64 Kbit (8 Kb x 8) TIMEKEEPER SRAM |
| M48T58_10 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 V, 64 Kbit (8 Kb x 8) TIMEKEEPER? SRAM |
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