HA16117F Ver la hoja de datos (PDF) - Renesas Electronics

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HA16117F

CMOS Watchdog Timer

Renesas Electronics 

HA16117F Series

Electrical Characteristics

(VCC = 5 V, Ta = 25°C, CF = 0.01 µF, CR = 0.1 µF, R1 = 510 kΩ, R2 = 750 kΩ)

Item

Symbol Min Typ Max Unit Test Conditions

General

Operating supply current

ICC1

–

100

–

µA

VACC = 0 V,

fP-RUN = 100 Hz

ICC2

–

200

600

µA

VACC = 0 V,

fP-RUN = 20 kHz

Low

voltage

detector

Standby supply current

ISTBY

Low voltage HA16117FPA/FPAJ VTL

threshold

level

HA16117FPB/FPBJ

HA16117FPC/FPCJ

–

43

100

4.3 4.4 4.5

4.1 4.2 4.3

3.9 4.0 4.1

µA

VACC = 12 V

V

When VCC drops

V

V

Hysteresis width

VHYS

50

100

150

mV

ACC

Low input voltage

VIL1

–

–

0.8

V

High input voltage

VIH1

2.0

–

–

V

P-RUN

input

Low input voltage

High input voltage

VIL2

–

–

0.8

V

VIH2

2.0

–

–

V

WDT

Power-on reset time

Reset-clock off time

tON

tOFF *1

24

40

56

ms

78 130 182

ms

Reset low time

tRL

12

20

28

ms

Reset high time

tRH

36

60

84

ms P-RUN pin = 0 V

Low setup time

tSL

1

–

–

ms

RES

output

High setup time

RES low voltage

RES high voltage

tSH

–

–

1

ms

VOL

–

–

0.4

V

IOL = 1 mA

VOH

–

VCC

–

V Open

Reset function starting voltage

VRES

–

0.8 1.4

V

Constant Constant range of R1 and R2

K

range

0.55 0.6 0.8

–

K =R2 / (R1 + R2)

Operating supply voltage range

VCCRNG

VTL

–

6.0

V

Note: 1. Reset-clock off time tOFF is provided a shown in the under figure.

f = 500 Hz, Duty = 50%

P-RUN

RES

tOFF

Rev.3.00 Jun 15, 2005 page 5 of 30

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