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首页产品索引CAT1832

CAT1832

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 Voltage Supervisor, Watchdog Timer, Manual Reset, 3.3 V, with Active High and Low Resets

制造商:ON

中文数据手册

产品信息

The CAT1832 voltage supervisor can halt and restart a 'hung-up' or 'stalled' microprocessor, restart a microprocessor after a power failure, and debounce a manual/push-button microprocessor reset switch. The device is a drop in replacement for the Maxim/Dallas Semiconductor DS1832 supervisor.
Precision reference and comparator circuits monitor the 3.3 V system power supply voltage, V
. During power-up or when the power supply falls outside selectable tolerance limits, both the RESET and
become active. After the power supply voltage rises above the RESET threshold voltage, the reset signals remain active for a minimum of 250 ms, allowing the power supply and system processor to stabilize. The trip-point tolerance input, TOL, selects the trip level tolerance to be 10% or 20% for the CAT1832 3.3 V supply. Each device has a push-pull, active HIGH reset output. The CAT1832 also has a push-pull, active LOW reset output.
A debounced manual reset input activates the reset outputs and holds them active for a minimum period of 250 ms after being released.
Also included is a watchdog timer to reset a microprocessor that has stopped due to a software or hardware failure. Three watchdog time-out periods are selectable: 150 ms, 600 ms and 1.2 sec. If the
input is not strobed low before the watchdog time out period expires, the reset signals become active for a minimum of 250 ms.
  • Selectable reset voltage tolerance
  • - CAT1232LP for 5.0 V supply
  • - CAT1832 for 3.3 V supply
  • Selectable watchdog period: 150 ms, 600 ms or 1.2 sec
  • Two reset outputs
  • - Active high, push-pull reset output
  • - Active low, push-pull reset output (CAT1832)
  • Debounced manual push button reset
  • Compact SOIC and MSOP packages

在线购买

型号制造商描述购买
CAT1832L-GONIC SUPERVISOR MPU 3.3V 8DIP 立即购买
CAT1832Z-GT3ONIC SUPERVISOR MPU 3.3V 8MSOP 立即购买
CAT1832V-GT3ONIC SUPERVISOR 1 CHANNEL 8SOIC 立即购买

技术资料

标题类型大小(KB)下载
PDIP-8, 300 milsPDF54 点击下载
SOIC 8, 150 milsPDF54 点击下载
MSOP 8, 3x3PDF55 点击下载
Voltage Supervisor, Watchdog Timer, Manual Reset, 3.3 V, with Active High and Low ResetsPDF184 点击下载

应用案例更多案例

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