© 2010 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FXLP4555 • Rev. 1.0.0

6

Electrical Characteristics

a test socket or printed circuit board with maintained transverse airflow greater than 500lfpm. Electrical parameters

are guaranteed only over the declared operating temperature range. Functional operation of the device exceeding

these conditions is not implied. Device specification limit values are applied individually under normal operating

conditions and not valid simultaneously.

Symbol

Parameter

Condition

Min.

Typ.

Max.

Unit

Power Supply Section

Power Supply

2.7

5.5

V

Operating Current

16

25

µA

Shutdown Current

EN=Low

3

µA

Operating Voltage

1.65

5.50

V

Operating Current

(3)

fCLK=1MHz

7

12

µA

Shutdown Current

EN=Low

1

µA

Under-Voltage

Lockout

0.6

1.5

V

SIM Card Supply

Voltage

2.8

V

2.8

3.0

3.2

1.7

1.8

1.9

Short-Circuit Current

175

mA

Digital Input / Output Section (CLK, RST, I/O, EN, VSEL)

Input Voltage Range

EN, VSEL, RST_H, CLK_H, I/O_H

0

V

Input Current

EN, VSEL, RST_H, CLK_H

-100

100

nA

High Level Input

Voltage

RST_H, CLK_H, EN, VSEL

0.7 •

V

Low Level Input

Voltage

RST_H, CLK_H

0.2 *

V

EN, VSEL

0

0.4

High Level Output

Voltage

0.7 •

V

Low Level Output

Voltage

0

0.4

V

High Level Input

Current

I/O

-20

20

µA

Low Level Input

Current

I/O

1.0

mA

I/O Pull-Up Resistor

12

18

24

kΩ

Continued on the following page…