ST8024L 查看數據表（PDF） - STMicroelectronics

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产品描述 (功能)

生产厂家

ST8024L

Smartcard interface

STMicroelectronics 

ST8024L

Electrical characteristics

Table 7.

Symbol

Step-up converter

Parameter(1)

Test conditions

Min. Typ.

fCLK

Vth(vd-vf)

Clock frequency

Threshold voltage for

step-up converter to

change to voltage

follower

Card active

5 V card

3 V card

1.8 V card

2.2

5.2 5.8

3.8 4.1

3.8 4.1

5 V card

VUP

Output voltage on pin

VUP (average value)

3 V card

1.8 V card

5.2 5.7

3.5 3.9

3.5 3.9

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

Max. Unit

3.2 MHz

6.2

4.4 V

4.4

6.2

4.3 V

4.3

Table 8. Card supply voltage characteristics

Symbol

Parameter(1)

Test conditions

CVCC

VCC

VCC

(RIPPLE)

(P-P)

External capacitance

on pin VCC

See(2)

Card inactive; |ICC| = 0 mA

5 V, 3 V and

1.8 V card

Card inactive; |ICC| = 1 mA

5 V, 3 V and

1.8 V card

Card supply voltage

(including ripple

voltage)

Card active; |ICC| < 80 mA 5 V card

Card active; |ICC| < 65 mA 3 V card

Card active; |ICC| < 45 mA 1.8 V card

Card active; single current

pulse IP = –100 mA; tp = 2 µs

5 V card

Card active; single current

pulse IP = –100 mA; tp = 2 µs

3 V card

Card active; single current

pulse IP = –100 mA; tp = 2 µs 1.8 V card

Card active; current pulses,

QP = 40 nAs

5 V card

3 V card

1.8 V card

Card active; current pulses

QP = 40 nAs with

|ICC| < 200 mA, tp < 400 ns

5 V card

3 V card

1.8 V card

Ripple voltage on

VCC (peak-to-peak

value)

fRIPPLE = 20 kHz to 200 MHz

Min. Typ. Max. Unit

80

400 nF

-0.1

0

0.1

-0.1

0

0.3

4.75 5 5.25

2.85 3 3.15

1.68 1.8 1.92

4.65 5 5.25

2.76

3

3.20 V

1.62 1.8 1.98

4.65 5 5.25

2.76 3 3.20

1.62 1.8 1.98

4.65 5 5.25

2.76 3 3.20

1.62 1.8 1.98

350 mV

Doc ID 17709 Rev 5

11/35

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