ST8024 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST8024

Smartcard interface

STMicroelectronics 

ST8024

Electrical characteristics

Table 15.

Symbol

Clock output to card reader (pin CLK) (VDD = 3.3 V, VDDP = 5 V, fXTAL = 10 MHz, unless

otherwise noted. Typical values are to TA = 25 °C)

Parameter

Test conditions

Min. Typ. Max. Unit

IO(inactive) = 1 mA

VO(inactive) Output voltage in inactive mode

No Load

IO(inactive) Output current

CLK Inactive mode; pin

grounded

VOL

Low level output voltage

IOL = 200 µA

IOL = 70 mA (current

limit)

VOH

High level output voltage

IOH = -200 µA

IOH = -70 mA (current

limit)

tR, tF

δ

SR

Rise and fall time

Duty factor (except for fXTALS)

Slew rate

CL = 30 pF (Note 4)

CL = 30 pF (Note 4)

Slew up or down;

CL = 30 pF

0

0

0

0

VCC-0.4

0.9VCC

0

45

0.2

0.3

V

0.1

-1

mA

0.3

V

VCC

VCC

V

0.4

16

ns

55

%

V/ns

Table 16.

Control inputs (pins CLKDIV1, CLKDIV2, CMDVCC, RSTIN and 5 V / 3 V

(VDD = 3.3 V, VDDP = 5 V, fXTAL = 10 MHz, unless otherwise noted. Typical values are to TA

= 25 °C) (Note 5)

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

VIL

VIH

|ILIH|

|ILIL|

Input voltage low

Input voltage high

Input leakage current high

Input leakage current low

VIH = VDD

VIL = 0

-0.3

0.7VDD

0.3VDD

V

VDD

V

1

µA

1

µA

Table 17.

Card presence inputs (pins PRES and PRES)

(VDD = 3.3 V, VDDP = 5 V, fXTAL = 10 MHz, unless otherwise noted. Typical values are to TA

= 25 °C) (Note 6)

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

VIL

VIH

|ILIH|

|ILIL|

Input voltage low

Input voltage high

Input leakage current high

Input leakage current low

VIH = VDD

VIL = 0

-0.3

0.7 VDD

0.3 VDD

V

VDD+0.3 V

5

µA

5

µA

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