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| 型号： | MAX6344LUT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 5/8页 |
| 文件大小： | 0K |
| 描述： | IC RESET MPU W/COMP SOT23-6 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 推挽式，图腾柱 |
| 复位： | 高有效 |
| 复位超时： | 最小为 100 ms |
| 电压 - 阀值： | 4.63V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-6 |
| 包装： | 带卷 (TR) |
6-Pin μP Reset Circuit with
Power-Fail Comparator
Pin Description (continued)
PIN
NAME
FUNCTION
MAX6342
MAX6343
MAX6344
MAX6345
Manual-Reset Input. Pull low to force a reset. RESET or RESET
5
5
5
—
MR
remains active as long as MR is low and for the reset timeout
period after MR goes high. Leave unconnected or connect to
V CC if unused.
Active-Low Reset Output. Push-pull for MAX6342/MAX6345.
6
6
—
5
RESET
Open-drain for MAX6343. It remains low for 180ms after V CC
rises above the reset threshold or MR goes from low to high.
Active-High Push-Pull Reset Output. It remains high for 180ms
—
—
6
6
RESET
after V CC rises above the reset threshold or MR goes from low
to high.
1 V CC
RESET
GENERATOR
RESET
6
1 V CC
RESET
GENERATOR
RESET 6
V CC (RESET)
V TH
100k ?
V TH
2
GND
MAX6342
MAX6343
MAX6344
MR
5
2
GND
MAX6345
RESET 5
3
3
PFI
4
PFI
PFO 4
PFO
1.25V
( ) ARE FOR MAX6344 ONLY.
Figure 1. MAX6342/MAX6343/MAX6344 Functional Diagram
_______________Detailed Description
Reset Output
A μP’s reset input starts the μP in a known state. These
μP supervisory circuits assert reset to prevent code-
execution errors during power-up, power-down, or
brownout conditions.
RESET and RESET are guaranteed to be asserted at a
valid logic level for V CC > +1V (see the Electrical Char-
acteristics table). Once RESET asserts, it remains
asserted for at least 100ms (t RP ) after V CC rises above
its threshold value or after MR returns high (Figures 1
and 2).
1.25V
Figure 2. MAX6345 Functional Diagram
Open-Drain RESET Output
The MAX6343 has an active-low, open-drain reset out-
put. This output sinks current when RESET is asserted.
Connect a pull-up resistor from RESET to any positive
supply voltage up to +5.5V (Figure 3). Select a resistor
value large enough to register a logic low (see the Elec-
trical Characteristics table), and small enough to regis-
ter a logic high while supplying all input current and
leakage paths connected to the RESET line. A 10k ?
pull-up is sufficient in most applications.
Manual Reset
The MAX6342/MAX6343/MAX6344s’ manual-reset input
( MR ) allows reset to be triggered by a pushbutton
switch. The switch is effectively debounced by the 1μs
min reset pulse width. MR is CMOS-logic compatible.
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6344MUT | 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product |
| MAX6344MUT+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 4.38V 30UA 6PIN SOT-23 - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
| MAX6344MUT+T | 功能描述:监控电路 6-Pin uPower Reset Circuit 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 |
| MAX6344MUT-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 |
| MAX6344RUT | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
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