STM817M Просмотр технического описания (PDF) - STMicroelectronics

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STM817M

5 V supervisor with battery switchover

STMicroelectronics 

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

DC and AC parameters

Table 7. DC and AC characteristics (continued)

Sym

Alter-

native

Description

Test condition(1)

Min

VOH

VOH

VOHB

Output high voltage

(RST, RST)

Output high voltage

(ECON)

Output high voltage

(PFO)

Output high voltage

VOH battery backup

(RST, RST)

VOH battery backup

(ECON)

ISOURCE = 1 mA

2.4

VCC = VRST (max)

VCC = VRST (max),

IOUT = 1.6 mA, E= VCC

0.8VCC

ISOURCE = 75 µA,

VCC = VRST (max)

0.8VCC

ISOURCE = 4 µA, VCC = 1.1 V,

VBAT = VCC , TA = 0°C to 85°C

ISOURCE = 4 µA, VCC = 1.2 V,

VBAT = VCC

ISOURCE = 100 µA,

VCC = 0, VBAT = 2.8 V

0.8VBAT

ISOURCE = 75 µA,

VCC = 0, VBAT = 2.8 V

0.8VBAT

Power-fail comparator (NOT available on STM818)

PFI falling

All other

versions

1.20

VPFI

PFI input threshold

(VCC = 5 V)

STM802

1.225

tPFD

PFI to PFO propagation

delay

ISC

PFO output short to GND

current

VCC = 5 V, VPFO = 0 V

0.1

Battery switchover

VSO

Battery backup

switchover voltage(7)(8)

(VCC < VBAT &

VCC < VRST)

Hysteresis

Power-down

Power-up

VRST > VBAT

VRST < VBAT

VRST > VBAT

VRST < VBAT

Reset thresholds

VRST

Reset threshold(9)

STM690A/703, STM8XXL 4.50

STM692A/704, STM8XXM 4.25

Reset threshold

hysteresis

VCC to RST delay (from

VRST, VCC falling at

10 V/ms)

STM817/818/819

Typ

1.25

1.250

2

0.75

VBAT

VRST

VBAT

VRST

40

4.65

4.40

25

100

Max Unit

V

V

V

0.8 V

0.9 V

V

V

1.30 V

1.275 V

µs

2.0 mA

V

V

V

V

mV

4.75 V

4.50 V

mV

µs

Doc ID 10522 Rev 10

35/43

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