R31DS0038EU0204 Rev.2.04

Page 5

Aug 14, 2026

551S Datasheet

2.3.3

8-DFN

2.4

Electrical Specifications

2.4.1

DC Electrical Characteristics

Parameter

Symbol

Conditions

Typical

Unit

Thermal Resistance Junction to Ambient

ΘJA

Still air

140.7

°C/W

1m/s air flow

136.5

2m/s air flow

133.3

3m/s air flow

131.4

Thermal Resistance Junction to Board

ΘJB

93.8

Thermal Resistance Junction to Case

ΘJC

64.5

VDD = 1.8V ±5%, Ambient temperature -40° to +105°C, unless stated otherwise

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Operating Voltage

VDD

1.71

-

1.89

V

Input High Voltage, ICLK

VIH

[1]

1. Nominal switching threshold is VDD/2.

0.7xVDD

-

1.89

V

Input Low Voltage, ICLK

VIL

[1]

-

-

0.3xVDD

V

Input High Voltage, OE

VIH

0.7xVDD

-

VDD

V

Input Low Voltage, OE

VIL

-

-

0.3xVDD

V

Output High Voltage

VOH

IOH = -10mA

1.3

-

-

V

Output Low Voltage

VOL

IOL = 10mA

-

-

0.35

V

Operating Supply Current

IDD

No load, 135MHz

-

13

-

mA

Nominal Output Impedance

ZO

-

17

-

Ω

Input Capacitance

CIN

OE pin

-

5

-

pF

VDD = 2.5V ±5%, Ambient temperature -40° to +105°C, unless stated otherwise

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Operating Voltage

VDD

2.375

-

2.625

V

Input High Voltage, ICLK

VIH

[1]

1. Nominal switching threshold is VDD/2.

0.7xVDD

-

2.625

V

Input Low Voltage, ICLK

VIL

[1]

-

-

0.3xVDD

V

Input High Voltage, OE

VIH

0.7xVDD

-

VDD

V

Input Low Voltage, OE

VIL

-

-

0.3xVDD

V

Output High Voltage

VOH

IOH = -16mA

1.8

-

-

V

Output Low Voltage

VOL

IOL = 16mA

-

-

0.5

V

Operating Supply Current

IDD

No load, 135MHz

-

18

-

mA

Nominal Output Impedance

ZO

-

17

-

Ω

Input Capacitance

CIN

OE pin

-

5

-

pF