DIO74557LP10 datasheet(1/12 Pages) DIOO

Part #	DIO74557LP10

Description	SIM Card Interface Level Shifter with EMI Filter and ESD Protection

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Manufacturer	DIOO [DIOO MICROCIRCUITS CO., LTD]

Direct Link	https://www.dioo.com/#/

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Rev 1.5

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DIO74557• Rev. 1.5

- 1 -

DIO74557

SIM Card Interface Level Shifter with EMI Filter and ESD

Protection

Features



Clock speeds up to 10 MHz



SIM card supply voltages range: from 1.65 V

to 3.6 V



Host micro-controller operating voltage range:

from 1.08 V to 1.95 V



Compliant with all ETSI, IMT-2000 and ISO-

7816-3 SIM/Smart card interface requirements



Automatic level translation of I/O, RST and

CLK between SIM card and host side interface

with capacitance isolation



Automatic enable and disable through VCCB



No external resistors required with integrated

pull-up and pull-down resistors



Integrated EMI filters suppress higher

harmonics of digital I/Os



Level-shifting buffers keep ESD stress away

from the host



ESD protection:

IEC61000-4-2 level 4, contact and air discharge

on all SIM card-side pins, VCCB, and GND are

±8 kV and ±15 kV respectively



Packaged in QFN1.8*1.4-10

Descriptions

The DIO74557 is designed for interfacing a SIM

card with a low-voltage host-side interface (1.08 V

to 1.95 V). It contains three level shifters,

converting the I/O data, RST and CLK signals

between a SIM card and a host micro-controller.

The device is integrated with pull-up resistors,

which means no external resistors is required,

providing small overall solution size.

The DIO74557 is compliant with all ETSI, IMT-2000

and

ISO-7816-3

SIM/Smart

card

interface

requirements.

The DIO74557 is housed in QFN1.8*1.4-10

package.

Applications



Mobile and personal phones



Wireless modems



SIM card terminals

Ordering Information

Ordering Part No.

Top Marking

MSL

RoHS

TA

Package

DIO74557LP10

YW5G

1

Green

-40 to 85°C

QFN1.8*1.4-10

Tape & Reel, 3000

Marking Definition

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DIO74557LP10 Datasheet(PDF) 1 Page - DIOO MICROCIRCUITS CO., LTD

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