5 5

4 4

3 3

2 2

1 1

DD

CC

BB

AA

Giao tiep RS485

Mach phu tro

CONTROLLER

CHIP READER

POWER

OUTPUT

RS232

V3.0

<RevCode>

linhnc308 - RFID Design 2009

A

11

Monday, March 22, 2010

Title

Size

Document Number

Rev

Date:

Sheet

of

LED2

LED1

OSC2

SPK

OSC1RX

RST

LED1

TX

OSC1

OSC2

RST

RST

PGD

PGC

TX

EN485

EN485

RX

BA

SPK

TX

RX

RS485_B

ARS485_A

EXT_VPP

BRS485_B

RS485_A

PGD

PGC

LED2

EXT_VPP

VPP

VCC

VCC

VCC

VPP

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

VCC

2 3 4 5 6 72122232425262728

11

12

13

14

15

16

17

18 8

1919

10

20

RA0/AN0

RA1/AN1

RA2/AN2/VREF-/CVREF

RA3/AN3/VREF+

RA4/T0CKI/C1OUT

RA5/AN4/SS/C2OUT

RB0/INT

RB1

RB2

RB3/PGM

RB4

RB5

RB6/PGC

RB7/PGD

RC0/T1OSO/T1CKI

RC1/T1OSI/CCP2

RC2/CCP1

RC3/SCK/SCL

RC4/SDI/SDA

RC5/SDO

RC6/TX/CK

RC7/RX/DT

VSS

VSS

MCLR/VPP

OSC1/CLKI

OSC2/CLKO

VDD

U2

MAX232

1 3 4 5

2 6

12

911

10

13 8

14 7

C1+

C1-

C2+

C2-

V+

V-

R1OUT

R2OUT

T1IN

T2IN

R1IN

R2IN

T1OUT

T2OUT

1

C5

1

+

C12

1uF

R6

330

+

C9

1uF

C_DEC

R9

4.7

C2

C

LA

J6SPEAKER

12

U5

78XX/TO

13

VIN

VOUT

J2

ICSP

1 2 3 4 5 6

1

1

J1

HEADER 41 2 3 4

C_AGND

R1

470

D1 RED

C7 104

+

C111uF

R3

10K

C_DC2

1

1

J3

DC 12V

12

J7

HEADER 3X2

2 4 6

1 3 5

Y1

20MHz

C3

C

Cres

C6

D2 GREEN

123456

D4

DIODE

1

C_FCAP

R4

120

R2

470

C8

104

C14

22p

C_DV1

U3

AT24C256L/SOIC

1 25

6 7 8

A0

A1

SDA

SCL

WP

VCC

R_ser

R

U4

MAX485

1

4 23

6 7

RO

DI

RE

DE

A B

R7

1K

+

C10

1uF

+C4

470uF/25V

R5

330

1

U6

EM4095

1 2 3 4 5 6 7 8910

11

12

13

14

15

16

VSS

RDY/CLK

ANT1

DVDD

DVSS

ANT2

VDD

DEMOD_IN

CDEC_OUT

CDEC_IN

AGND

MODE

DEMOD_OUT

SHD

FCAP

DC2

C15

22p

Q2

C1815

C_DV2

MOD

SHD

SHD

RDY_CLK

DEMOD_OUT

RDY_CLK

MOD

DEMOD_OUT

SCL

SDA

SDA

SCL