73S8009CN 查看數據表（PDF） - Teridian Semiconductor Corporation

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73S8009CN

Combo ISO-7816 and USB Universal Smart Card Interface IC

Teridian Semiconductor Corporation 

73S8009CN Data Sheet

DS_8009_026

VDD_supply_to_uC

VDD See NOTE 5

0.1F

C1

0.1F

C2

VPC See NOTE 1

See NOTE 4

10µH

0.1F

C3

10µF

C4

USB D- to/from_uC

USB D+ to/from_uC

OFF_interrupt_to_uC

I/OUC_to/from_uC

AUX1UC_to/from_uC

AUX2UC_to/from_uC

CMDVCC%_from_uC

CMDVCC#_from_uC

RSTIN_from_uC

CLKIN_from_uC

RDY_status_to_uC

OFF_ACK_from_uC

OFF_REQ_to_uC

SC/USB_from_uC

See NOTE 6

1

2

3

4

I/OUC

AUX1UC

AUX2UC

CMDVCC%

5 CMDVCC#

6

7

8

RSTIN

CLKIN

RDY

73S80009CN

NOTES:

1) VPC = 2.7V to 6.5V DC

2) Resistor footprint is included in case some filtering is needed on CLK

3) Capacitors C4 and C5 are provisional and their footprints should be added for added noise rejection

if necessary.

4) Inductor must be rated for 400 mA maximum peak current.

5) VDD - 3.3V, +/- 0.3V, 40mA max. Schematic assumes VDD supplies power to the host controller.

Requires min two 0.1µF caps to gnd)

6) The RDY signal is optional. A short delay before releasing RSTIN should suffice for the RDY

signal function.

4.7µF

C7

ON/OFF 24

DM 23

I/O

AUX1

AUX2

22

21

20

VCC

RST

GND

19

18

17

Pushbutton Switch

SW1

27pF

32 QFN

See

NOTE 2

0

C5

27pF

VDD

C6

R2

20K

Card detection

switch is

normally closed

See

NOTE 3

See

NOTE 3

0.47µF, Low ESR (<100mohms)

should be placed near the

C8

SC connecter contact

CLK track should be routed

far from RST, I/O, C4 and C8

Smart Card Connector

Figure 3: Typical 73S8009CN Application Schematic with a Main System Switch

14

Rev. 1.4

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