FOR AUTOMOTIVE 125°C OPERATION LOW CURRENT CONSUMPTION WATCHDOG TIMER WITH RESET FUNCTION

S-19400/19401 Series

11

Table 9 (2 / 2)

−40°C to +125°C unless otherwise specified)

Item

Symbol

Condition

Min.

Typ.

Max.

Unit

Test

Circuit

Input pin current 1 "H"

WEN pin,

Input pin voltage = 6.0 V

A / B / C

/ G / H / I

type

−

0.3

1.0

μA

15

D / E / F

/ J / K / L

type

−0.1

−

0.1

μA

15

Input pin current 1 "L"

Input pin voltage = 0 V

−0.1

−

0.1

μA

15

Input pin current 2 "H"

W

___

/ T pin, S-19400 Series only,

−

0.3

1.0

μA

15

Input pin current 2 "L"

W

___

/ T pin, S-19400 Series only,

−0.1

−

0.1

μA

15

Input pin current 3 "H"

Input pin voltage = 6.0 V

−

0.3

1.0

μA

15

Input pin current 3 "L"

Input pin voltage = 0 V

−0.1

−

0.1

μA

15

Input pulse width "H"

*2

−

1.5

−

−

μs

15

Input pulse width "L"

*2

−

1.5

−

−

μs

15

Watchdog output delay time

−

−

25

40

μs

3

Reset output delay time

−

−

25

40

μs

3

Input setup time

−

1.0

−

−

μs

3

*1.

Inputs to the WEN pin and the WDI pin should be greater than or equal to the min. value specified in " Electrical

Characteristics".

WEN

WDI

Figure 7