STM817L(2006) 查看數據表（PDF） - STMicroelectronics

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STM817L
(Rev.:2006)

5V Supervisor with Battery Switchover

STMicroelectronics 

STM690A/692A/703/704/802/805/817/818/819

Figure 10. Block Diagram (STM818)

VCC

VBAT

VSO

COMPARE

VRST

COMPARE

WDI

WATCHDOG

TIMER

VOUT

trec

Generator

RST

E

Figure 11. Hardware Hookup

ECON OUTPUT

CONTROL

ECON

AI07899a

Unregulated

Voltage

Regulator

VIN

VCC

0.1µF

VCC

VOUT

STM690A/692A/

703/704/802/805/

817/818/819

From Microprocessor

R1

WDI(1)

E(2)

ECON(2)

PFI(3)

PFO(3)

R2

Push-Button

MR(4)

RST

VBAT

VCC

VCC

0.1µF

LPSRAM

E

E

To Microprocessor NMI

To Microprocessor Reset

Note: 1. For STM690A/692A/802/805/817/818.

2. For STM818 only.

3. Not available on STM818.

4. For STM703/704/819.

AI07893

8/37

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