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STM802

Features: ` 5V OPERATING VOLTAGE` NVRAM SUPERVISOR FOR EXTERNAL LPSRAM` CHIP-ENABLE GATING (STM818 only) FOR EXTERNAL LPSRAM (7ns max PROP DELAY)` RST AND RST OUTPUTS` 200ms (TYP) trec` WATCHDOG TIMER - 1.6sec (TYP)` AUTOMATIC BATTERY SWITCHOVER` LOW BATTERY SUPPLY CURRENT - 0.4A (TYP)` POWER-FAIL...

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SeekIC No. : 004508224 Detail

STM802: Features: ` 5V OPERATING VOLTAGE` NVRAM SUPERVISOR FOR EXTERNAL LPSRAM` CHIP-ENABLE GATING (STM818 only) FOR EXTERNAL LPSRAM (7ns max PROP DELAY)` RST AND RST OUTPUTS` 200ms (TYP) trec` WATCHDOG TIM...

STM802 Data Sheet

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Part Number:
STM802
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` 5V OPERATING VOLTAGE
` NVRAM SUPERVISOR FOR EXTERNAL LPSRAM
` CHIP-ENABLE GATING (STM818 only) FOR EXTERNAL LPSRAM (7ns max PROP DELAY)
` RST AND RST OUTPUTS
` 200ms (TYP) trec
` WATCHDOG TIMER - 1.6sec (TYP)
` AUTOMATIC BATTERY SWITCHOVER
` LOW BATTERY SUPPLY CURRENT - 0.4A (TYP)
` POWER-FAIL COMPARATOR (PFI/PFO)
` LOW SUPPLY CURRENT - 40A (TYP)
` GUARANTEED RST (RST) ASSERTION DOWN TO VCC = 1.0V
` OPERATING TEMPERATURE:
  40°C to 85°C (Industrial Grade)


Pinout

Connection Diagram


Specifications

Symbol Parameter Value Unit
TSTG Storage Temperature (VCC Off) 55 to 150 °C
TSLD(1) Lead Solder Temperature for 10 seconds 260 °C
VIO Input or Output Voltage 0.3 to VCC +0.3 V
VCC/VBAT Supply Voltage 0.3 to 6.0 V
IO Output Current 20 mA
PD Power Dissipation 320 mW

Note: 1. Reflow at peak temperature of 255°C to 260°C for < 30 seconds (total thermal budget not to exceed 180°C for between 90 to 150 seconds).




Description

The STM690A/692A/703/704/STM802/805/817/818/ 819 Supervisors are self-contained devices which provide microprocessor supervisory functions with the ability to non-volatize and write-protect external LPSRAM. A precision voltage reference and comparator monitors the VCC input for an out-oftolerance condition. When an invalid VCC condition occurs, the reset output (RST) is forced low (or high in the case of RST). These devices also offer a watchdog timer (except for STM703/704/ 819) as well as a power-fail comparator (except for STM802) to provide the system with an early warning of impending power failure.

These STM802 are available in a standard 8-pin SOIC package or a space-saving 8-pin TSSOP package.




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