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| 型号： | MAX6380XR22-T |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | Analog IC |
| 中文描述： | 模拟IC |
| 文件页数： | 11/14页 |
| 文件大小： | 205K |
| 代理商： | MAX6380XR22-T |
MAX6316–MAX6322
5-Pin P Supervisory Circuits with
Watchdog and Manual Reset
6
_______________________________________________________________________________________
_______________Detailed Description
A microprocessor’s (P) reset input starts or restarts the
P in a known state. The reset output of the MAX6316–
MAX6322 P supervisory circuits interfaces with the
reset input of the P, preventing code-execution errors
during power-up, power-down, and brownout condi-
tions (see the Typical Operating Circuit). The MAX6316/
MAX6317/MAX6318/MAX6320/MAX6321 are also capa-
ble of asserting a reset should the P become stuck in
an infinite loop.
Reset Output
The MAX6316L/MAX6318LH/MAX6319LH feature an
active-low reset output, while the MAX6317H/
MAX6318_H/MAX6319_H/MAX6321HP/MAX6322HP
feature an active-high reset output. RESET is guaran-
teed to be a logic low and RESET is guaranteed to be a
logic high for VCC down to 1V.
The MAX6316–MAX6322 assert reset when VCC is below
the reset threshold (VRST), when MR is pulled low
(MAX6316_/MAX6317H/MAX6319_H/MAX6320P/
MAX6322HP only), or if the WDI pin is not serviced within
the watchdog timeout period (tWD). Reset remains assert-
ed for the specified reset active timeout period (tRP) after
VCC rises above the reset threshold, after MR transitions
low to high, or after the watchdog timer asserts the reset
(MAX6316_/MAX6317H/MAX6318_H/MAX6320P/
MAX6321HP). After the reset active timeout period (tRP)
expires, the reset output deasserts, and the watchdog
timer restarts from zero (Figure 2).
MAX6316–MAX6322
VCC
WDI
(ALL EXCEPT
MAX6319/MAX6322)
1.23V
52k
52k
GND
RESET
(ALL EXCEPT
MAX6316/MAX6320P)
RESET
(ALL EXCEPT MAX6317)
MR
(ALL EXCEPT
MAX6318/MAX6321)
RESET
GENERATOR
WATCHDOG
TIMER
WATCHDOG
TRANSITION
DETECTOR
Figure 1. Functional Diagram
VCC
1V
tRD
VRST
tRD
RESET
GND
RESET
tRP
GND
Figure 2. Reset Timing Diagram
相关PDF资料 |
PDF描述 |
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| MAX6381XR16D6-T | SC70 Single/Dual Low-Voltage Low-Power µ.P Reset Circuits |
| MAX6381XR16D7-T | Analog IC |
| MAX6381XR17D1-T | SC70 Single/Dual Low-Voltage Low-Power µ.P Reset Circuits |
| MAX6381XR17D2-T | Analog IC |
| MAX6381XR17D4-T | Analog IC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6380XR33 | 制造商:Maxim Integrated Products 功能描述:3-PIN ULTRA-LOW-POWER SC70 VOLTAG - Rail/Tube |
| MAX6380XR33+ | 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR DETECT 3.3V 3PIN SC-70 - Rail/Tube |
| MAX6380XR33+T | 功能描述:电压监测器/监控器 3-Pin ULow-Power Voltage Detector RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT |
| MAX6380XR33-T | 功能描述:电压监测器/监控器 RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT |
| MAX6380XR34 | 制造商:Maxim Integrated Products 功能描述:3-PIN ULTRA-LOW-POWER SC70 VOLTAG - Cut Tape Product |
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