ST8024 STMicroelectronics, ST8024 Datasheet - Page 3

• Manufacturer Part Number: ST8024
• Description: SMARTCARD INTERFACE
• Manufacturer: STMicroelectronics

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Figure 2: Pin Configuration
Table 2: Pin Description
PlN N°
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
CMDVCC
SYMBOL
CLKDIV1
CLKDIV2
PORADJ
AUX1UC
AUX2UC
PGND
CGND
RSTIN
XTAL1
XTAL2
I/OUC
5V/3V
PRES
PRES
AUX2
AUX1
V
GND
RST
OFF
CLK
C1+
V
V
V
C1-
I/O
DDP
UP
CC
DD
Control of CLK Frequency
Control of CLK Frequency
V
Power Ground for Step-Up converter
External Cap. for Step-Up converter
Power Supply for Step-Up converter
External Cap. Step-Up converter
Output of Step-Up converter
Card Presence Input (Active Low)
Card Presence Input (Active High)
Data Line to and from card (C7) (internal 11kΩ pull-up resistor connected to V
Auxiliary line to and from card (C8) (internal 11kΩ pull-up resistor connected to V
Auxiliary line to and from card (C4) (internal 11kΩ pull-up resistor connected to V
Ground for card signal (C5)
Clock to card (C3)
Card Reset (C2)
Supply Voltage for the card (C1)
Deactivation threshold selector pin (under voltage lock-out)
Start activation sequence input (Active Low)
Card Reset Input from MCU
Supply Voltage
Ground
Interrupt to MCU (active Low)
Crystal or external clock input
Crystal connection (leave this pin open if external clock is used)
MCU data I/O line (internal 11kΩ pull-up resistor connected to V
Non-inverting Receiver Input (internal 11kΩ pull-up resistor connected to V
Non-inverting Receiver Input (internal 11kΩ pull-up resistor connected to V
CC
selection pin.
NAME AND FUNCTION
DD
)
DD
DD
ST8024
)
)
CC
)
CC
CC
3/23
)
)