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68HC11/双向微处理器复位电路

业内唯一的Motorola 68HCxx/双向兼容、SOT复位IC

产品详情

主要特征

应用/用途

Parametric specs for Supervisors (1 Monitored Voltage)
Reset Thresh. (V) 2.5 to 3.3
3.3 to 5.5
Reset Thresh. Accur. (%) (@ +25°C) 1.8
Reset Out Active Low
Bidirectional
tRESET (min) 1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
Watchdog Feature No Watchdog
Supervisor Features Manual Reset
ICC (µA) (max) 12
Package/Pins SOT23/4
Budgetary
Price (See Notes)
1.5
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参量

Parametric specs for Supervisors (1 Monitored Voltage)
Reset Thresh. (V) 2.5 to 3.3
3.3 to 5.5
Reset Thresh. Accur. (%) (@ +25°C) 1.8
Reset Out Active Low
Bidirectional
tRESET (min) 1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
Watchdog Feature No Watchdog
Supervisor Features Manual Reset
ICC (µA) (max) 12
Package/Pins SOT23/4
Budgetary
Price (See Notes)
1.5

主要特征

  • Small SOT143 Package
  • Active-Low RESET Output Simplifies Interface to Bidirectional Reset I/Os
  • Precision Factory-Set VCC Reset Thresholds:
    • 100mV Increments from 2.5V to 5V
  • ±1.8% Reset Threshold Accuracy at TA = +25°C
  • ±2.5% Reset Threshold Accuracy over temp.
  • Four Reset Timeout Periods Available:
    • 1ms, 20ms, 140ms, or 1120ms (minimum)
  • Immune to Short VCC Transients
  • 5µA Supply Current
  • Pin-Compatible with MAX811

应用/用途

  • 计算机:台式机、工作站和服务器
  • 控制器
  • 精确的µP与µC电源监控
  • 智能仪表
  • 便携式电池供电设备

描述

The MAX6314 low-power CMOS microprocessor (µP) supervisory circuit is designed to monitor power supplies in µP and digital systems. The MAX6314's active-low RESET output is bidirectional, allowing it to be directly connected to µPs with bidirectional reset inputs, such as the 68HC11. It provides excellent circuit reliability and low cost by eliminating external components and adjustments. The MAX6314 also provides a debounced manual reset input.

This device performs a single function: it asserts a reset signal whenever the VCC supply voltage falls below a preset threshold or whenever manual reset is asserted. Reset remains asserted for an internally programmed interval (reset timeout period) after VCC has risen above the reset threshold or manual reset is deasserted.

The MAX6314 comes with factory-trimmed reset threshold voltages in 100mV increments from 2.5V to 5V. Preset timeout periods of 1ms, 20ms, 140ms, and 1120ms (minimum) are also available. The device comes in a SOT143 package.

For a µP supervisor with an open-drain reset pin, see the MAX6315 data sheet.

简化框图

MAX6314:典型工作电路 MAX6314:典型工作电路 Zoom icon

支持和培训

在Maxim的知识库中搜索技术问题的答案

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Maxim的专业工程师团队也会为您解答相应的技术问题,请访问Maxim的 支持中心