73S8009C 데이터 시트보기 (PDF) - Teridian Semiconductor Corporation

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73S8009C

Versatile Power Management and Smart Card Interface IC

Teridian Semiconductor Corporation 

DS_8009C_025

73S8009C Data Sheet

VPC

See NOTE 2

VDD_supply_to_uC

See NOTE 8

OFF_interrupt_to_uC

VDD

See NOTE 7

10µH

See NOTE 3 C3

VBAT

10µF

I/OUC_to/from_uC

AUX1UC_to/from_uC

AUX2UC_to/from_uC

CMDVCC%_from_uC

CMDVCC#_from_uC

RSTIN_from_uC

1

2

3

4

I/OUC

AUX1UC

AUX2UC

CMDVCC%

5 CMDVCC#

6

7

8

RSTIN

CLKIN

RDY

CLKIN_from_uC

RDY_status_to_uC

OFF_ACK_from_uC

73S80009C

OFF_REQ_to_uC

CS_from_uC

See

NOTE 4

NOTES:

1) VBUS = 4.5V to 5.5V DC.

4.7µF

2) VPC = 2.7V to 6.5V DC (should only be used when VBAT and

C2

VBUS are unused)

3) VBAT = 4.0V to 6.5V DC.

4) Internal pull-up allows it to be left open if unused.

5) Resistor footpring is included in case some filtering is needed on CLK

6) Capacitors C4 and C5 are provisional and their footprints should be

added for added noise rejection if necessary.

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

8) VDD - 3.3V, +/- 0.3V, 40mA max. Requires min two 0.1µF caps to gnd)

See NOTE 1

VBUS

Pushbutton Switch

ON/OFF

VBUS

24

23

I/O

AUX1

22

21

AUX2 20

VCC

RST

GND

19

18

17

SW1

27pF

32 QFN

See

NOTE 5

0

C5

27pF

VDD

C4

R2

20K

Card detection

switch is

normally closed

See

NOTE 6

See

NOTE 6

0.47µF, Low ESR (<100mohms)

should be placed near the

C1

SC connecter contact

CLK track should be routed

far from RST, I/O, C4 and C8

Smart Card Connector

Figure 4: Typical 73S8009C Application Schematic

Rev. 1.4

17

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