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参数资料
| 型号： | M41ST85YMH6E |
| 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, LEAD FREE, PLASTIC, SOH-28 |
| 文件页数： | 13/34页 |
| 文件大小： | 532K |
| 代理商： | M41ST85YMH6E |
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M41ST85Y, M41ST85W
20/34
Power-on Reset
The M41ST85Y/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(max).
The RST pin is an open drain output and an appro-
priate pull-up resistor should be chosen to control
rise time.
Reset Inputs (RSTIN1 & RSTIN2)
The M41ST85Y/W provides two independent in-
puts which can generate an output reset. The du-
ration and function of these resets is identical to a
reset generated by a power cycle. Table 5 and Fig-
ure 19 illustrate the AC reset characteristics of this
function. Pulses shorter than tRLRH1 and tRLRH2
will not generate a reset condition. RSTIN1 and
RSTIN2 are each internally pulled up to VCC
through a 100k
resistor.
Figure 19. RSTIN1 & RSTIN2 Timing Waveforms
Note: With pull-up resistor
Table 5. Reset AC Characteristics
Note: 1. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 4.5 to 5.5V or 2.7 to 3.6V (except where noted).
2. Pulse width less than 50ns will result in no RESET (for noise immunity).
3. Pulse width less than 20ms will result in no RESET (for noise immunity).
4. Programmable (see Table 6., page 22).
Symbol
Parameter(1)
Min
Max
Unit
tRLRH1
(2)
RSTIN1 Low to RSTIN1 High
200
ns
tRLRH2
(3)
RSTIN2 Low to RSTIN2 High
100
ms
tR1HRH
(4)
RSTIN1 High to RST High
40
200
ms
tR2HRH
(4)
RSTIN2 High to RST High
40
200
ms
AI03665
RSTIN2
RST
(1)
RSTIN1
tRLRH1
tRLRH2
tR1HRH
tR2HRH
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M41ST85YMH6TR | 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 and NVRAM SUPERVISOR |
| M41ST85YMX | 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 and NVRAM SUPERVISOR |
| M41ST85YMX6 | 功能描述:实时时钟 Serial 512 (64x8) 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 |
| M41ST85YMX6TR | 制造商:STMicroelectronics 功能描述:REAL TIME CLOCK SERL 64BYTE 28PIN SOX - Tape and Reel |
| M41ST85YSH | 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 and NVRAM SUPERVISOR |
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