ST8004CDR データシートの表示（PDF） - STMicroelectronics

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ST8004CDR

Smartcard interface

STMicroelectronics 

Pin configuration

2

Pin configuration

Figure 2. Pin connections

ST8004

Table 1.

Pin N°

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

4/26

Pin description

Symbol

Name and function

CLKDIV1

CLKDIV2

5V/3V

PGND

C1+

VDDP

C1-

VUP

PRES

PRES

I/O

AUX2

AUX1

CGND

CLK

RST

VCC

VTHSEL

CMDVCC

Control of CLK Frequency

Control of CLK Frequency

VCC selection pin.

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 10kΩ pull-up resistor connected to VCC)

Auxiliary line to and from card (C8) (internal 10kΩ pull-up resistor connected to VCC)

Auxiliary line to and from card (C4) (internal 10kΩ pull-up resistor connected to VCC)

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)

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