- 您现在的位置：买卖IC网 > PDF目录45049 > M41ST87YWX6 (STMICROELECTRONICS) 1 TIMER(S), REAL TIME CLOCK, PDSO28 PDF资料下载
参数资料
| 型号： | M41ST87YWX6 |
| 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： | 0.300 INCH, PLASTIC, SO-28 |
| 文件页数： | 24/38页 |
| 文件大小： | 569K |
| 代理商： | M41ST87YWX6 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页当前第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页
M41ST87Y, M41ST87W
30/38
Power-on Reset
The M41ST87Y/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.
Note: A Power-on Reset will result in resetting the
following control bits to '0': OFIE, AFE, ABE,
SQWE, FT, WDS, BMB0-BMB4, RB0, RB1, TIE1,
and TIE2 (see Table 17, page 33).
Reset Inputs (RSTIN1 & RSTIN2)
The M41ST87Y/W provides two independent in-
puts which can generate an output reset. The
function of these resets is identical to a reset gen-
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.
Figure 25. RSTIN1 & RSTIN2 Timing Waveforms
Table 14. 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 widths of less than 100ns will result in no RESET (for noise immunity).
3. Programmable (see Table 16, page 32). Same function as Power-on Reset.
Symbol
Parameter(1)
Min
Max
Unit
tR1
(2)
RSTIN1 Low to RST Low (min pulse width)
100
200
ns
tR2
(2)
RSTIN2 Low to RSTIN2 High (min pulse width)
100
200
ns
tREC
(3)
RSTIN1 or RSTIN2 High to RST High
96
98(3)
ms
AI07072
RSTIN1
RST
RSTIN2
tR1
tREC
Hi-Z
tR2
tREC
Hi-Z
相关PDF资料 |
PDF描述 |
|---|---|
| M41T00M6F | REAL TIME CLOCK, PDSO8 |
| M41T00M6E | REAL TIME CLOCK, PDSO8 |
| M41T00M6 | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| M41T0DS6 | REAL TIME CLOCK, PDSO8 |
| M41T0DS6T | REAL TIME CLOCK, PDSO8 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M41ST95W | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit (64 bit X 8) Serial RTC (SPI) SRAM and NVRAM Supervisor |
| M41ST95WMH6 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit (64 bit X 8) Serial RTC (SPI) SRAM and NVRAM Supervisor |
| M41ST95WMH6E | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit (64 bit X 8) Serial RTC (SPI) SRAM and NVRAM Supervisor |
| M41ST95WMH6F | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit (64 bit X 8) Serial RTC (SPI) SRAM and NVRAM Supervisor |
| M41ST95WMH6TR | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit (64 bit X 8) Serial RTC (SPI) SRAM and NVRAM Supervisor |
发布紧急采购，3分钟左右您将得到回复。