st8004 STMicroelectronics, st8004 Datasheet - Page 5

• Manufacturer Part Number: st8004
• Description: Smartcard Interface
• Manufacturer: STMicroelectronics

ST8004
Table 1.
Pin N°
20
21
22
23
24
25
26
27
28
Pin description
AUX1UC
AUX2UC
Symbol
RSTIN
XTAL1
XTAL2
I/OUC
GND
OFF
V
DD
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)
Data Line to and from MCU (internal 10kΩ pull-up resistor connected to V
Auxiliary line to and from MCU (internal 10kΩ pull-up resistor connected to V
Auxiliary line to and from MCU (internal 10kΩ pull-up resistor connected to V
Name and function
Pin configuration
DD
)
DD
DD
)
)
5/26