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MAX693 Microprocessor Supervisory IC Datasheet
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| Product Details |
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The MAX693 is a microprocessor monitor for monitoring the
system voltage of a microprocessor system.
The device includes a reset output for power up and down conditions, together with low voltage
brownout reset. Battery backup switching is provided to switch to
a back-up battery in power fail conditions. The MAX693 also includes
an adjustable watchdog timer, as well as write protection for the CMOS RAM or EEPROM.
Features
- 200ms Power-OK/Reset Timeout Period
- 1µA Standby Current, 30µA Operating Current
- On-Board Gating of Chip-Enable Signals,10ns max Delay
- MaxCap™ or SuperCap™ Compatible
- Guaranteed RESET Assertion to Vcc=+1V
- Voltage Monitor for Power-Fail or Low-Battery Warning
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| Pin Layout |
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| Pin Description |
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Pin Number
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Description
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1
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Vbatt - Backup Battery Input
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2
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Vout - Vcc or Vbat Output, Depending on Voltage
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3
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Vcc - +5V Power Supply Input
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4
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GND - Ground
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5
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Batt On - Indicates Supply is from the Battery
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6
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Low Line - Indicates Power Supply Voltage is Low
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7
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OCS IN
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8
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OSC SEL
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9
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PFI - Power Fail Input
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10
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PFO - Power Fail Output
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11
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WDI - Watchdog Input
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12
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CE Out
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13
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CE In
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14
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WDO - Watchdog Output
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15
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RESET - Active High Reset
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16
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RESET - Active Low Reset
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| Dimensional Drawing |
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| Technical Data |
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Datasheet
Application Notes
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