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| 型号： | MAX6324FUT44-T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | Analog IC |
| 中文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO6 |
| 封装： | ROHS COMPLIANT, SOT-23, 6 PIN |
| 文件页数： | 2/13页 |
| 文件大小： | 168K |
| 代理商： | MAX6324FUT44-T |
WDPO to MR Loopback
An error detected by the watchdog often indicates that
a problem has occurred in the P code execution. This
could be a stalled instruction or a loop from which the
processor cannot free itself. If the P will still respond
to a nonmaskable input (NMI), the processor can be
redirected to the proper code sequence by connecting
the WDPO output to an NMI input. Internal RAM data
should not be lost, but it may have been contaminated
by the same error that caused the watchdog to time
out.
If the processor will not recognize NMI inputs, or if the
internal data is considered potentially corrupted when
a watchdog error occurs, the processor should be
restarted with a reset function. To obtain proper reset
timing characteristics, the WDPO output should be
connected to the MR input, and the RESET output
should drive the P RESET input (Figure 10). The short
1ms WDPO pulse output will assert the manual reset
input and force the RESET output to assert for the full
reset timeout period (100ms min). All internal RAM data
is lost during the reset period, but the processor is
guaranteed to begin in the proper operating state.
MAX6323/MAX6324
P Supervisory Circuits with Windowed
(Min/Max) Watchdog and Manual Reset
10
______________________________________________________________________________________
START
SET WDI
LOW
SUBROUTINE OR
PROGRAM LOOP
SET WDI HIGH
RETURN
END
Figure 9. Watchdog Flow Diagram
MAX6323
MAX6324
RESET
WDPO
P
RESET
*MAX6324 ONLY
MR
WDI
I/O
GND
VCC
*RPULLUP
500pF
Figure 10. WDPO to MR Loopback Circuit
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相关代理商/技术参数 |
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|---|---|
| MAX6324FUT46 | 制造商:Maxim Integrated Products 功能描述:UP SUPERVISORY CIRCUIT WITH WINDOWE - Cut Tape Product |
| MAX6324FUT46+ | 制造商:Maxim Integrated Products 功能描述:MAXIM MAX6324FUT46+, SUPERVISORS - Tape and Reel 制造商:Maxim Integrated Products 功能描述:Maxim MAX6324FUT46+, Microprocessor Supervisory Circuit 4.63V Reset Threshold 2.5V/3V/3.3V/5V 6-pin SOT23 |
| MAX6324FUT46+T | 功能描述:监控电路 uPower Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6324FUT46-T | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6324GUT23 | 制造商:Maxim Integrated Products 功能描述:UP SUPERVISORY CIRCUIT WITH WINDOWE - Cut Tape Product |
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