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MAX791CPE+

微处理器监控器, 0V-5.5V 电源, 低有效复位, 200MS 延迟/4.65V 阈值, DIP-16

MAXIM INTEGRATED PRODUCTS MAX791CPE+
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制造商产品编号:
MAX791CPE+
库存编号
2512414
技术数据表:
MAX791CPE+   Datasheet
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产品概述

The MAX791CPE+ is a microprocessor supervisory circuit in 16 pin DIP package. The MAX791 reduces the complexity and number of components needed to monitor power-supply and battery-control functions in µP systems. The 50µA supply current makes the MAX791 ideal for use in portable equipment, while the 6ns chip-enable propagation delay and 250mA output capability. The µP reset, manual-reset input and a 1.25V threshold detector provides for power-fail warning and low-battery detection or monitors a power supply other than +5V. Two-stage power-fail warning and a separate low-line comparator compares VCC to a threshold 150mV above the reset threshold. It features backup-battery switchover for CMOS RAM, real-time clocks, µPs or other low power logic. Software monitoring of backup-battery voltage. A watchdog-fault output is asserted if the watchdog input has not been toggled within either a preset or an adjustable timeout period. Write protection of CMOS RAM or EEPROM.
  • Supply voltage range is 0V to 5.5V
  • Operating temperature range from 0°C to 70°C
  • Precision 4.65V voltage monitoring
  • Power-OK/reset time delay is 200ms
  • Standby current is 1µA
  • Power switching of 250mA output in VCC modem and 25mA output in battery-backup mode
  • On-board gating of chip-enable signals of memory write-cycle & 6ns CE gate propagation delay
  • MaxCap or SuperCap compatible
  • Voltage monitor for power-fail or low-battery warning
  • Backup battery monitor

应用

系统监控, 便携式器材

产品信息

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:
4.65V

:
1监控器/监视器

:
0V

:
5.5V

:
有功-低

:
DIP

:
16引脚

:
200ms

:
0°C

:
70°C

:
-

:
-

:
MSL 1 -无限制
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技术文档 (1)

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Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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