DIO74559

Version 1.1, Oct 2024

www.dioo.com

© 2024 DIOO MICROCIRCUITS CO., LTD.

3

4. ESD Ratings

When a statically-charged person or object touches an electrostatic discharge sensitive device, the electrostatic

charge might be drained through sensitive circuitry in the device. If the electrostatic discharge possesses

sufficient energy, damage might occur to the device due to localized overheating.

Model

Condition

Value

Unit

HBM

ANSI/ESDA/JEDEC JS-001

±8000

V

CDM

ANSI/ESDA/JEDEC JS-002

±2000

V

IEC 61000-4-2, level 4, contact discharge at SIM card side pins, VCCB,

and GND pins

±8000

V

IEC 61000-4-2, level 4, air discharge(1) at SIM card side pins, VCCB, and

GND pins

±15000

V

Note:

(1) According to the IEC 61000-4-2 standards, a Level 4 contact discharge of ±8 kV is considered equivalent to a ±15 kV air

discharge. Air discharge is provided for information only and was not tested.

5. Function Description

Supply Voltage

Input/Output

Operational Mode

VCCA

VCCB

Host

SIM Card

1.08 V to 1.98 V

1.62 V to 3.3 V

HOST = SIM Card

SIM Card = HOST

Active

GND

1.62 V to 3.3 V

See the table below, Condition B

Shutdown

1.08 V to 1.98 V

GND

See the table below, Condition A

Shutdown

GND

GND

See the table below, Condition A

Shutdown

Pin condition

Condition A

Condition B

RST_HOST

100 kΩ pull low

100 kΩ pull low

CLK_HOST

100 kΩ pull low

100 kΩ pull low

IO_HOST

5 kΩ pull to VCCA

5 kΩ pull to VCCA

RST_SIM

100 kΩ pull low

400 Ω pull low

CLK_SIM

100 kΩ pull low

400 Ω pull low

IO_SIM

High Z

400 Ω pull low