ST8024LACDR View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
ST8024LACDR Datasheet PDF : 35 Pages
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Electrical characteristics
ST8024L
Table 12.
Symbol
Data lines to microcontroller (pins I/OUC, AUX1UC, and AUX2UC with integrated
11 kΩ pull-up resistor to VDD)
Parameter(1)
Test conditions
Min. Typ. Max. Unit
VOH High level output voltage
VOL
VIH
VIL
|ILIH|
Low level output voltage
High level input voltage
Low level input voltage
High level input leakage
current
5 V, 3 V and 1.8 V cards;
IOH < –40 µA
No DC load
IOL = 1 mA
VIH = VDD
0.75 VDD
0.9 VDD
0
0.7 VDD
-0.3
|IL|
RPU
tT(DI)
tT(DO)
Low level input current
VIL = 0 V
Internal pull-up resistance to
VDD
Pull-up resistor to VDD
Data input transition time VIL max. to VIH min.
Data output transition time
VO = 0 to VDD; CL < 30 pF;
10% to 90%
9
11
IPU Current when pull-up active VOH = 0.9 VDD; CL = 30 pF
-1
1. VDD = 3.3 V, VDDP = 5 V, fXTAL = 10 MHz, unless otherwise noted. Typical values are at TA = 25 °C.
VDD +0.1
V
VDD +0.1
0.3
V
VDD +0.3 V
0.3 VDD V
10
µA
600
µA
13
kΩ
1.2
µs
0.1
µs
mA
Table 13. Internal oscillator
Symbol
Parameter(1)
Test conditions
Min. Typ.
fOSC(INT)
Frequency of internal
oscillator
Inactive mode
Active mode
55
140
2.2
2.7
1. VDD = 3.3 V, VDDP = 5 V, fXTAL = 10 MHz, unless otherwise noted.Typical values are at TA = 25 °C.
Max.
200
3.2
Unit
kHz
MHz
Table 14. Reset output to card reader (pin RST)
Symbol
Parameter(1)
Test conditions
Min. Typ.
VO(inactive)
Output voltage in inactive
mode
IO(inactive) = 1 mA
No load
0
-
0
-
IO(inactive) Output current
Inactive mode; pin grounded
0
-
tD(RSTIN- RSTIN to RST delay
RST enable
-
RST)
IOL = 200 µA
VOL
Low level output voltage
IOL = 20 mA (current limit)
0
-
VCC -0.4
-
IOH = –200 µA
VOH
High level output voltage
IOH = –20 mA (current limit)
0.9 VCC
-
0
-
tR, tF Rise and fall time
CL = 100 pF
-
1. VDD = 3.3 V, VDDP = 5 V, fXTAL = 10 MHz, unless otherwise noted. Typical values are at TA = 25 °C.
Max.
0.3
0.1
-1
2
0.2
VCC
VCC
0.4
0.1
Unit
V
mA
µs
V
V
µs
14/35
Doc ID 17709 Rev 5
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