ST8024LTR Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

ST8024LTR

Smartcard interface

STMicroelectronics 

ST8024L

Electrical characteristics

Table 11.

Symbol

Data lines to card reader (pins I/O, AUX1, and AUX2 with integrated 11 kΩ pull-up

resistor to VCC)

Parameter(1)

Test conditions

Min.

Typ.

Max.

Unit

VO(inactive) Output voltage

IO(inactive) Output current

VOH High level output voltage

VOL Low level output voltage

VIH High level input voltage

VIL Low level input voltage

No load

0

Inactive mode

IO(inactive) = 1 mA

Inactive mode; pin grounded

No DC load

5 V and 3 V cards; IOH < –40 µA

1.8 V card IOH < –40 µA

|IOH| ≥ 10 mA

IOL = 1 mA

IOL ≥ 15 mA

5 V and 3 V cards

0.9 VCC

0.75 VCC

0.75 VCC

0

0

VCC–0.4

1.5

1.8 V card

5 V and 3 V cards

0.6 VCC

0.3

1.8 V card

0

0.1

V

0.3

-1

mA

VCC +0.1

VCC +0.1

V

0.4

0.2

V

VCC

VCC +0.3

V

1.0

V

0.2

|ILIH|

High level input leakage

current

VIH = VCC

10

µA

|IIL| Low level input current VIL = 0 V

RPU Integrated pull-up resistor Pull-up resistor to VCC

9

tT(DI) Data input transition time VIL max. to VIH min.

tT(DO)

Data output transition

time

VO = 0 to VCC; CL ≤ 80 pF; 10% to

90%

600

µA

11

13

kΩ

1.2

µs

0.1

µs

IPU

Current when pull-up

active

VOH = 0.9 VCC; CL = 80 pF

-2

mA

1. VDD = 3.3 V, VDDP = 5 V, fXTAL = 10 MHz, unless otherwise noted. Typical values are at TA = 25 °C.

Doc ID 17709 Rev 5

13/35

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