Schematics Stk525

5

4

VCC Ferrite & capacitors closed to the MCU

3

2

1

AVCC

VCC

L1

DECOUPLING CAPACITORS CLOSED TO THE DEVICE MCU Pin52

BLM-21A102S

C1 100nF

SP1 D

D

100nF C2

C3 100nF

VCC

PF[7..0] AREF

AREF

VCC

C4 PA[7..0]

PA0 PA1 PA2

PF0 PF1 PF2 PF3 PF4 PF5 PF6 PF7

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

AVCC

C6 100nF

DECOUPLING CAPACITORS CLOSED TO THE DEVICE MCU Pin21

PA[7..0]

AGND

100nF

R1 22

UGND R2 22

UCAP

VBUS

4-ID SHIELD USB_MiniABF

C7 1uF CR2 PGB0010603

UCAP Capacitor Closed to the MCU

PB[7..0] B

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

R4 0

UGND

CR1 PGB0010603

AT90USB128

VCC

PA3 PA4 PA5 PA6 PA7 PE2 PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0 PE1 PE0

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

DECOUPLING CAPACITORS CLOSED TO THE DEVICE MCU Pin3

PA3 PA4 PA5 PA6 PA7 PE2 PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0 PE1 PE0

C5 100nF

C

Force Bootloader Execution VCC R3 47k PC[7..0]

PC[7..0]

C8 220nF PE2

SW1 HWB

U1

PB7 PB[7..0]

XTAL2 XTAL1 PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7

VBUS

PE4 PE5 RESET

VBUS

PE6 PE7 UVcc DD+ UGND UCAP VBUS PE3 PB0 PB1 PB2 PB3 PB4 PB5 PB6

PE7

1-V_BUS 2-D3-D+ 5-GND

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

PE0 PE1 PE2 PE3

C

UVCON PE7 UVCC DD+ UGND UCAP VBUS UID PE3 PB0 PB1 PB2 PB3 PB4 PB5 PB6

VCC

PB7 PE4 PE5 RESET VCC GND XTAL2 XTAL1 PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7

UVCON J1

AVCC GND AREF PF0 PF1 PF2 PF3 PF4 PF5 PF6 PF7 GND VCC PA0 PA1 PA2

D+ D- RESISTORS Closed to the MCU

PE[7..0]

PD[7..0]

VCC

PD[7..0]

B

XTAL2

D1

XTAL1 Y1

Important Note: U1 is mounted through a TQFP64 ZIF socket

NC

8MHz

R5 47k

C9 220nF RESET

K

NRST C10 15pF

VCC

Reset Circuit

A

C11 15pF INT 0/2 BAT54/SOT SP2

RESET

SW2 Ext Reset Close Solder Pad To use parallel prog mode (12V on Reset Pin)

A

A

STK525 MEZZANINE FOR STK500 Title CPU Size A4 Date: 5

4

3

2

Document Number 1 Tuesday, January 17, 2006

Rev 1.0 Sheet

1 1

of

4

5

4

3

2

1

D

D

AREF

VCC

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

PE6 PE7 UVcc DD+ UGND UCAP VBUS PE3 PB0 PB1 PB2 PB3 PB4 PB5 PB6

65

BT

PF0 PF1 PF2 PF3 PF4 PF5 PF6 PF7 AT90USB128

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

C

UVCON PE7 UVCC DD+ UGND UCAP VBUS UID PE3 PB0 PB1 PB2 PB3 PB4 PB5 PB6

PB7 PE4 PE5 RESET VCC GND XTAL2 XTAL1 PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7

VCC

AVCC GND AREF PF0 PF1 PF2 PF3 PF4 PF5 PF6 PF7 GND VCC PA0 PA1 PA2

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

AVCC

PA0 PA1 PA2

AGND

PA3 PA4 PA5 PA6 PA7 PE2 PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0 PE1 PE0

48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

PA3 PA4 PA5 PA6 PA7 PE2 PC7 PC6 PC5 PC4 PC3 PC2 PC1 PC0 PE1 PE0

C

U1b

PB7

B

XTAL2 XTAL1 PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7

PE4 PE5 RESET

B

VCC

A

Important Note: U1b is not mounted, it is used as a dual foot print for QFN64

A

STK525 MEZZANINE FOR STK500 Title Cpub Size A Date:

5

4

3

Document Number Tuesday, January 17, 2006 2

Rev 1.0.0 Sheet

1

of 1

1

5

4

3

2

1

R8

D

JP1 1

2

1

XTAL1

STK X1

2

XTAL2

D

C12 1nF

Q1 BC847B

NRST

10k

STK X2

VTG 100nF

C13

XT1

C

2k

R9

JP2

PB7 PB5 PB3 PB1 PD7 PD5 PD3 PD1

VTG

J2 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39

GND AUXI1 DATA7 DATA5 DATA3 DATA1 SI SCK XT1 VTG GND PB7 PB5 PB3 PB1 PD7 PD5 PD3 PD1 GND

GND AUXO1 DATA6 DATA4 DATA0 DATA9 SO CS XT2 VTG GND PB6 PB4 PB2 PB0 PD6 PD4 PD2 PD0 GND

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40

VTG

STKNC XT2

PB6 PB4 PB2 PB0 PD6 PD4 PD2 PD0

VTG

J3

PE1

PC7 PC5 PC3 PC1 PA7 PA5 PA3 PA1

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39

GND AUXI0 CT7 CT5 CT3 CT1 (n.c.) NRST PE1 GND VTG PC7 PC5 PC3 PC1 PA7 PA5 PA3 PA1 GND

GND AUXO0 CT6 CT4 CT2 BSEL2 REF PE2 PE0 GND VTG PC6 PC4 PC2 PC0 PA6 PA4 PA2 PA0 GND

CON 2x20

CON 2x20

EXP. CON 1

EXP. CON 0

2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40

VTG C14 100nF JP3 REF PE2 PE0

1

2

AREF

STK AREF

C

PC6 PC4 PC2 PC0 PA6 PA4 PA2 PA0

PE[2..0] PD[7..0] PC[7..0] PB[7..0]

B

PA[7..0]

PE[2..0] PD[7..0] PC[7..0] B

PB[7..0] PA[7..0]

SP3 3.3V

STKNC

Important: Default configuration: open reserved for future mass storage extension

A

A

STK525 MEZZANINE FOR STK500 Title STK500 Expand connectors Size A4 Date: 5

4

3

2

Document Number Tuesday, January 17, 2006

Rev 1.0 Sheet

2 1

of

4

4

Data Flash

Joystick Interface DECOUPLING CAPACITOR CLOSE TO THE DEVICE

R10 100k

U2

R11 100k

1 2 3

RESET D

PB4 PB1 PB2 PB3

11 12 13 14

2

VCC

CS SCK SI SO

GND

SW3

VCC Select Left Up Right Down

6 C15 100nF

7

RS232 Interface PB[7..0]

3.3V

BUSY RESET WP

1

1 2

5 7 3 6 4

PB5 PB6 PB7 PE4 PE5

Com1 Com2

U3 C16 PE[7..0]

100nF

1

C1+

3 4

C1C2+

C17

AT45DB321C TSOP28

5 PD[7..0]

D

VCC

TPA511G Caution DataFlash Fix 3V Power supply Only

DECOUPLING CAPACITOR CLOSE TO THE DEVICE

16

3.3V

PB[7..0]

3

.

5

V+

2

V-

6

C18 100nF

TTL

RS 232

P1

PD2

RxD

12

.

.

13

PD3

TXD

11

.

.

14

SP4

J7

CTS

10

.

.

7

PD0

RTS

9

.

.

8

1k

R12

PF0 PF1 PF2 PF3

PD[7..0]

LED 0 (green) PD4

TOPLED LP M676 1k

R13

RS-RTS

SP8

SP5

11

10

GND

1 2 3 4

C

15

C

1 6 2 7 3 8 4 9 5

SP7

.

In-line Grouped LEDs

RS-RxD

RS-TxD RS-CTS

PD1

LEDs

C20 100nF

C19 100nF

C2-

100nF

VCC

MAX3232 RS232 BUFFER

SUB-D9 FEMALE RS232

D2 PF Spare (Not mounted)

LED 1 (green) PD5

PF[7..0]

D3

VCC PF0

PD6

TOPLED LP M676 1k

R15

D4

R16 100k

LED 3 (green)

CP1 VCC

CP2

CP3

PD7

TOPLED LP M676

JTAG Interface

VCC

LED 2 (green)

PF2

R14

PF1

TOPLED LP M676 1k

R17 0 PF[7..0]

J4 PF4 PF6 PF5

D5 R18 R19

Temp Sensor

DECOUPLING CAPACITOR CLOSE TO THE CONNECTOR

PF7

1 3 5 7 9

POT 100k

B

TCK TDO TMS VCC TDI

GND VCC RESET n.c. GND

2 4 6 8 10

VCC C21 100nF B

CON 2x5

JTAG CON NCP18WF104J03RB PB[7..0] 3.3V

Microphone Preamplifier Interface

R23 100k

J5

TP4

PB3 PB1 RESET

1 R24 100k R20 2.2k

R21

C22

Serial ISP Interface

PB2

220pF

R22 100k

1 3 5

PDO SCK RESET

Mic

4

4

+

2

R26 22k 1

5 +

8

C25

MIC1

DECOUPLING CAPACITOR CLOSE TO THE CONNECTOR

R27 0

A

8

A

R28 100k

U4B LMV358 7

+

3

6

+

10k

-

R25

3.3V 3.3V

STK525 MEZZANINE FOR STK500

3.3V C26 100nF

1uF DECOUPLING CAPACITOR CLOSE TO THE DEVICE

MICROPHONE

Title Interfaces Size A4 Date:

5

C23 100nF

ISP CON

RESET

-

C24 4.7uF

2 4 6

CON 2x3

100k U4A LMV358

VCC VCC PDI GND

4

3

2

Document Number Tuesday, January 17, 2006

Rev 1.0 Sheet

3 1

of

4

5

4

3

2

1

JP not mounted, reserved for future mass storage extension in stand alone mode

D

1

VTG SP6

D

2 3.3V

JP4

R34 1k

C27 100nF

10k

5 4

OC EN

OUT3 OUT2 OUT1

D6 LL4148

C28 4.7uF

VCC U6out=1.25*(1+R28/R29) 3.3V

1

TPS2041A

STK VBUS 3.3V Ext

U6 2 7

TPS2041A Vbus Icc limiter optionnal When Not Mounted Close Solder Pad C

3 D7 LL4148

IN SHDN GND

OUT OUT FAULT CC SET

3.3V

1 4 8 6 5

D8 TOPLED LP M676

JP6

R35 100k 1%

1 3 5 7

POWER LED(RED)

2 4 6 8

VCC 1

IN1 IN2

R29

6 7 8

JP5

VCC Source

-

C30 4.7uF C

JP Closed for 3.0
2

VBUS

GND

U5 2 3

LP3982

33nF C29

100k 1% R30 UCAP

R31 124k 1% U7

3

J6 3 2 1

JP7 U8

2

-

+

1

IN

CONNECTOR JACK PWR Ext Power Supply 4

C31 4.7uF

220nF C32

5V

OUT

GND

VTG 1 STK 3 Ext

100nF C33

FDV304P/FAI 2

VBUS R32 10k

VBUS gen

LM340

M1

R33

DF005S

Q2 BC847B

UVCON

B

-

C34 4.7uF B

100k

1

1 3.3V

TP7 5V

5V

TP8 GND

VBUS VBUS generator for OTG/HOST mode 1µF
1

TP6 3.3V

1

TP5

VBUS

A

A

STK525 MEZZANINE FOR STK500 Title POWER Size A4

Document Number

Date: 5

4

3

Tuesday, January 17, 2006 2

Rev 1.0 Sheet

4

of 1

4