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参数资料
| 型号： | M41ST84W-85MH6TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO28 |
| 封装： | 0.330 INCH, SNAPHAT, PLASTIC, SOH-28 |
| 文件页数： | 11/32页 |
| 文件大小： | 168K |
| 代理商： | M41ST84W-85MH6TR |
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19/32
M41ST84Y, M41ST84W
Power-on Reset
The M41ST84Y/W continuously monitors VCC.
When VCC falls to the power fail detect trip point,
the RST pulls low (open drain) and remains low on
power-up for tREC after VCC passes VPFD. The
RST pin is an open drain output and an appropri-
ate pull-up resistor should be chosen to control
rise time.
Reset Input (RSTIN)
The M41ST84Y/W provides an independent input
which can generate an output reset. The duration
and function of this reset is identical to a reset gen-
erated by a power cycle. Table 6, page 19 and Fig-
ure
16,
page
19
illustrate
the
AC
reset
characteristics of this function. Pulses shorter than
tRLRH will not generate a reset condition. RSTIN is
internally pulled up to VCC through a 100k resis-
tor.
Figure 16. RSTIN Timing Waveform
Table 6. Reset AC Characteristics
Note: VCC = 2.7 to 5.5V
1. Pulse width less than 50ns will result in no RESET (for noise immunity).
2. CL = 5pF (see Figure 19, page 23).
Symbol
Parameter
Min
Max
Unit
tRLRH
(1)
RSTIN Low to RSTIN High
200
ns
tRHRSH
(2)
RSTIN High to RST High
40
200
ms
AI03682
RST
(1)
RSTIN
tRLRH
tRHRSH
Note: 1. With pull-up resistor
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相关代理商/技术参数 |
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| M41ST84WMH | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS |
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