ST7SCR_07 datasheet(85/101 Pages) STMICROELECTRONICS

85 / 101 page

ST7SCR

85/101

tON

VCRDVCCTurn on Time (see Figure

37)

CLOADmax ≤ 4.7uF

150

500

µs

VCRDVCC

VCARD above minimum supply volt-

age

4.52 1)

4.76 1)

IVDD

VDD supply current

(See note 3)

100

3V regulator output (for IEC7816-3 Class B Cards)

VCRDVCC

SmartCard Power Supply Voltage

2.7

3.0

3.3

ISC

SmartCard Supply Current

IOVDET

Current Overload Detection

100 1)

tIDET

Detection time on Current Overload

170 1)

1400 1)

tOFF

VCRDVCC Turn off Time (see Figure

37)

CLOADmax≤4.7uF

750

tON

VCRDVCC Turn on Time (see Figure

37)

CLOADmax ≤ 4.7uF

150

500

µs

1.8V regulator output (for IEC7816-3 Class C Cards)

VCRDVCC

SmartCard Power Supply Voltage

1.65

1.95

ISC

SmartCard Supply Current

IOVDET

Current Overload Detection

1001)

tIDET

Detection time on Current Overload

170 1)

1400 1)

tOFF

VCRDVCC Turn off Time (see Figure

37)

CLOADmax ≤ 4.7uF

750

tON

VCRDVCC Turn on Time (see Figure

37)

CLOADmax ≤ 4.7uF

150

500

µs

Smartcard CLKPin

VOL

Output Low Level Voltage

I=-50uA

0.4

VOH

Output High Level Voltage

I=50uA

VCRDVCC-0.5

TOHL

Output H-L Fall Time 1)

Cl=30pF

TOLH

Output L-H Rise Time 1)

Cl=30pF

FVAR

Frequency variation 1)

-1

FDUTY

Duty cycle 1)

POL

Signal low perturbation 1)

-0.25

0.4

POH

Signal high perturbation 1)

VCRDVCC-0.5

VCRDVCC+0.25

ISGND

Short-circuit to Ground 1)

Smartcard I/O Pin

VIL

Input Low Level Voltage

0.5 2)

VIH

Input High Level Voltage

0.6VCRDVCC

VOL

Output Low Level Voltage

I=-0.5mA

0.4

VOH

Output High Level Voltage

I=20uA

0.8VCRDVCC

-VCRDVCC

Input Leakage Current 1)

VSS<VIN<VSC_PWR

-10

µA

IRPU

Pull-up Equivalent Resistance

VIN=VSS

Ω

TOHL

Output H-L Fall Time 1)

Cl=30pF

0.8

TOLH

Output L-H Rise Time 1)

Cl=30pF

0.8

ISGND

Short-circuit to Ground 1)

Smartcard RST C4 and C8 Pin

VOL

Output Low Level Voltage

I=-0.5mA

0.4

VOH

Output High Level Voltage

I=20uA

VCRDVCC-0.5

-VCRDVCC

TOHL

Output H-L Fall Time 1)

Cl=30pF

0.8

SMARTCARD SUPPLY SUPERVISOR

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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