st8024l STMicroelectronics, st8024l Datasheet - Page 10

• Manufacturer Part Number: st8024l
• Description: Smartcard Interface
• Manufacturer: STMicroelectronics

Electrical characteristics
Table 7.
1. V
Table 8.
10/33
Symbol
V
Symbol
(RIPPLE)
th(vd-vf)
C
f
V
V
V
(P-P)
CLK
VCC
UP
DD
CC
CC
= 3.3 V, V
Clock frequency
Threshold voltage for step-
up converter to change to
voltage follower
Output voltage on pin V
(average value)
External capacitance
on pin V
Card supply voltage
(including ripple
voltage)
Ripple voltage on
V
value)
CC
Step-up converter
Card supply voltage characteristics
Parameter
DDP
(peak-to-peak
Parameter
CC
= 5 V, f
XTAL
(1)
(1)
= 10 MHz, unless otherwise noted. Typical values are at T
UP
Note 2
Card inactive; |I
Card inactive; |I
Card active; |I
Card active; |I
Card active; |I
Card active; single current
pulse I
Card active; single current
pulse I
Card active; single current
pulse I
Card active; current pulses,
Q
Card active; current pulses
Q
|I
f
RIPPLE
CC
P
P
= 40 nAs
= 40 nAs with
| < 200 mA, t
Card active
5 V card
3 V card
1.8 V card
5 V card
3 V card
1.8 V card
P
P
P
and
= 20 KHz to 200 MHz
= –100 mA; t
= –100 mA; t
= –100 mA; t
Note 3
Doc ID 17709 Rev 3
CC
CC
CC
Test conditions
CC
CC
| < 80 mA
| < 65 mA
| < 45 mA
p
Test conditions
| = 0 mA
| = 1 mA
< 400 ns
p
p
p
= 2 µs
= 2 µs
= 2 µs
5 V, 3 V and
1.8 V card
5 V, 3 V and
1.8 V card
5 V card
3 V card
1.8 V card
5 V card
3 V card
1.8 V card
5 V card
3 V card
1.8 V card
5 V card
3 V card
1.8 V card
A
Min.
Min.
4.65
2.76
1.62
4.65
2.76
1.62
4.65
2.76
1.62
4.75
2.85
1.68
-0.1
-0.1
2.2
5.2
3.8
3.8
5.2
3.5
3.5
= 25 °C.
80
Typ.
Typ.
5.8
4.1
4.1
5.7
3.9
3.9
1.8
1.8
1.8
1.8
0
0
5
3
5
3
5
3
5
3
Max.
Max.
5.25
3.15
1.92
5.25
3.20
1.98
5.25
3.20
1.98
5.25
3.20
1.98
400
350
3.2
6.2
4.4
4.4
6.2
4.3
4.3
0.1
0.3
ST8024L
MHz
Unit
Unit
V
V
mV
nF
V