Rainbow-electronics AT83C24NDS Manual de usuario descargar pdf (Pagina 30)

4234F–SCR–10/05

AT83C24

Notes: 1. Capacitor: X7R type or X5R type, max ESR value is 30mΩ (100kHz-100MHz),

Replacing 3.3µF by 2.2µF in parrallel with 1µF is better for ESR and noise reduction.

Ripple on CVCC

150

200

350

0 < Icard < 60mA C

=10µF

for AT83C24

0 < Icard < 65mA C

= 3.3µF

for AT83C24NDS

Spikes on CVCC 4.6 5.3 V

Max. charge 40 nA.s

Max. duration 400 ns

Max. Icard variation 200 mA

Vcardok up Vcardok high level threshold 4.8 4.9 V

Vcardok down Vcardok low level threshold

4.6

4.75

4.8

AT83C24

AT83C24NDS

VHL

CVCC valid to 0

180

500

250

750

μs

Icard = 0, VCC > V

PFDP

= 3.3 μF Icard = 0

= 10 μF Icard = 0

(see note 1)

VLH

CVCC 0 to Valid

180

110

240

170

250

300

250

μs

VCC = 3V, C

= 3.3µF

Icard = 65mA

Icard = 0mA

VCC = 3V, C

= 10µF

Icard = 65mA

Icard = 0mA

Table 20. Smart Card Class A

Symbol Parameter Min Typ Max Unit Test Conditions

Table 21. Smart Card Class B

Symbol Parameter Min Typ Max Unit Test Conditions

Card Supply Current Capability

VCC=3V to 5.5V, STEPREG=0

VCC > 5.35V, STEPREG = 1

_ovf

Card Supply Current Overflow:

ICCADJ = 0 (reset value)

ICCADJ = 1

130

140

150

mA VCC from 3.0 to 5.5V

Ripple on CVCC 60

200

350

0 < Icard < 65mA C

=10µF

0 < Icard < 65mA C

= 3.3µF

Spikes on CVCC 2.76 3.24 V

Maxi. charge 40 nA.s

Max. duration 400 ns

Max. variation Icard 200mA

Vcardok up Vcardok high level threshold 2.8 3 V

Vcardok

down

Vcardok low level threshold 2.76 2.9 V

VHL

CVCC valid to 0

130

400

250

500

μs

Icard = 0, VCC > V

PFDP

= 3.3 μF Icard = 0

(see note 1)

= 10 μF Icard = 0

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 41 42

Comentarios a estos manuales

Sin comentarios

Rainbow-electronics AT83C24NDS Manual de usuario Pagina 30

Comentarios a estos manuales

Relacionado con productos y manuales para Software Rainbow-electronics AT83C24NDS