DIO74557S

Version 1.1, May 2024

www.dioo.com

© 2024 DIOO MICROCIRCUITS CO., LTD.

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2. Absolute Maximum Ratings

Exceeding the maximum ratings listed under Absolute Maximum Ratings when designing is likely to damage the

device permanently. Do not design to the maximum limits because long-time exposure to them might impact the

device’s reliability. The ratings are obtained over an operating free-air temperature range unless otherwise

specified.

Symbol

Parameter

Conditions

Min

Max

Unit

VCCA

Host supply voltage

GND - 0.5

2.2

V

VCCB

SIM supply voltage

GND - 0.5

4.0

V

VI(CLK_HOST),

VI(RST_HOST), VI(IO_HOST)

Input voltage on CLK_HOST,

RST_HOST, IO_HOST pins

Input signal voltage, HOST side

GND - 0.5

2.2

V

VI(CLK_SIM), VI(RST_SIM),

VI(IO_SIM)

Input voltage on CLK_SIM,

RST_SIM, IO_SIM pins

Input signal voltage, SIM side

GND - 0.5

4.0

V

TSTG

Storage temperature

-55

125

°C

TA

Ambient temperature

-40

85

°C

3. Recommended Operating Conditions

Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications.

The ratings are obtained over an operating free-air temperature range unless otherwise specified.

Symbol

Parameter

Conditions

Min

Max

Unit

VCCA

Host supply voltage

1.08

1.95

V

VCCB

SIM supply voltage

1.65

3.6

V

VIH

High-level input voltage

IO_HOST, RST_HOST,

CLK_ HOST

0.7 × VCCA

V

IO_SIM

0.7 × VCCB

V

VIL

Low-level input voltage

IO_HOST, RST_HOST,

CLK_ HOST

0.3 × VCCA

V

IO_SIM

0.25 × VCCB

V

Δt/ΔV

Input transition rise or fall

rate

200

ns/V