etekronics.com atmega128 development board schematic

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1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 D D C C B B A A Title Number Revision Size A3 Date: 30/10/2006 Sheet of File: D:\EDA Projects\..\ATMEGA128.SCHDOCDrawn By: PEN 1 PE0 (RXD0/PDI) 2 PE1 (TXD0/PDO) 3 PE2 (XCK0/AIN0) 4 PE3 (OC3A/AIN1) 5 PE4 (OC3B/INT4) 6 PE5 (OC3C/INT5) 7 PE6 (T3/INT6) 8 PE7 (IC3/INT7) 9 PB0 (SS) 10 PB1 (SCK) 11 PB2 (MOSI) 12 PB3 (MISO) 13 PB4 (OC0) 14 PB5 (OC1A) 15 PB6 (OC1B) 16 PB7 (OC2/OC1C) 17 TOSC2/PG3 18 TOSC1/1PG4 19 RESET 20 VCC 21 GND 22 XTAL2 23 XTAL1 24 PD0 (SCL/INT0) 25 PD1 (SDA/INT1) 26 PD2 (RXD1/INT2) 27 PD3 (TXD1/INT3) 28 PD4 (IC1) 29 PD5 (XCK1) 30 PD6 (T1) 31 PD7 (T2) 32 PG0 (WR) 33 PG1 (RD) 34 PC0 (A8) 35 PC1 (A9) 36 PC2 (A10) 37 PC3 (A11) 38 PC4 (A12) 39 PC5 (A13) 40 PC6 (A14) 41 PC7 (A15) 42 PG2 (ALE) 43 PA7 (AD7) 44 PA6 (AD6) 45 PA5 (AD5) 46 PA4 (AD4) 47 PA3 (AD3) 48 PA2 (AD2) 49 PA1 (AD1) 50 PA0 (AD0) 51 VCC 52 GND 53 PF7 (ADC7/TDI) 54 PF6 (ADC6/TDO) 55 PF5 (ADC5/TMS) 56 PF4 (ADC4/TCK) 57 PF3 (ADC3) 58 PF2 (ADC2) 59 PF1 (ADC1) 60 PF0 (ADC0) 61 AREF 62 GND 63 AVCC 64 U1 ATmega128-16AC VCC C1 0.1uF C2 0.1uF C3 0.1uF R1 10 R2 10 VCC C4 22p C5 22p 1 2 Y1 16MHz R3 10K VCC 1 2 3 4 5 6 7 8 9 10 J1 PORTA 1 2 3 4 5 6 7 8 9 10 J2 PORTB 1 2 3 4 5 6 7 8 9 10 J3 PORTC 1 2 3 4 5 6 7 8 9 10 J4 PORTD 1 2 3 4 5 6 7 8 9 10 J5 PORTE 1 2 3 4 5 6 7 8 9 10 J6 PORTF VCC PA1 PA3 PA5 PA7 PA0 PA2 PA4 PA6 VCC VCC VCC VCC VCC PB0 PB2 PB4 PB6 PC0 PC2 PC4 PC6 PB1 PB3 PB5 PB7 PC1 PC3 PC5 PC7 PD0 PD2 PD4 PD6 PE0 PE2 PE4 PE6 PF0 PF2 PF4 PF6 PD1 PD3 PD5 PD7 PE1 PE3 PE5 PE7 PF1 PF3 PF5 PF7 PA0 PA1 PA2 PA3 PA4 PA5 PA6 PA7 PC0 PC1 PC2 PC3 PC4 PC5 PC6 PC7 PF7 PF6 PF5 PF4 PF3 PF2 PF1 PF0 PB0 PB1 PB2 PB3 PB4 PB5 PB6 PB7 PD0 PD1 PD2 PD3 PD4 PD5 PD6 PD7 PE0 PE1 PE2 PE3 PE4 PE5 PE6 PE7 1 2 3 4 5 6 7 8 9 10 J7 ISP VCC PE0 RST PB1 PE1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 J8 Header 7X2 PG0 PG2 PG1 PG3 PG4 PD7 VCC R4 10K VCC PG3 PG4 PG0 PG1 PG2 RST R5 10K S1 RESET VCC RST C1+ 1 VDD 2 C1- 3 C2+ 4 C2- 5 VEE 6 T2OUT 7 R2IN 8 R2OUT 9 T2IN 10 T1IN 11 R1OUT 12 R1IN 13 T1OUT 14 GND 15 VCC 16 U2 MAX232 10uF C9 10uF C7 10uF C8 10uF C6 VCC 10uF C10 VCC 1 2 3 4 5 6 7 8 S2 SW-DIP4 PD3 PD2 PE1 PE0 1 2 3 4 5 6 7 8 9 11 10 J9 RS232 1 2 3 4 5 6 7 8 9 11 10 J10 RS232 1 2 J11 7-12 VDC D1 1N4001 C12 22p C14 22p C11 100uF/25V C13 10uF IN 1 3 OUT 2 GND U3 7805 VCC C15 0.1uF LED0 RED R6 2.2K VCC 1 2 3 4 5 6 7 8 9 10 J12 JTAG PF4 PF6 PF5 PF7 VCC RST VCC

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Schematic and layout of the Atmel ATMEGA128 development board sold by Etekronics.com.

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Page 1: Etekronics.com ATMEGA128 Development Board Schematic

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1

2

2

3

3

4

4

5

5

6

6

7

7

8

8

D D

C C

B B

A A

Title

Number RevisionSize

A3

Date: 30/10/2006 Sheet ofFile: D:\EDA Projects\..\ATMEGA128.SCHDOCDrawn By:

PEN1

PE0 (RXD0/PDI)2

PE1 (TXD0/PDO)3

PE2 (XCK0/AIN0)4

PE3 (OC3A/AIN1)5

PE4 (OC3B/INT4)6

PE5 (OC3C/INT5)7

PE6 (T3/INT6)8

PE7 (IC3/INT7)9

PB0 (SS)10

PB1 (SCK)11

PB2 (MOSI)12

PB3 (MISO)13

PB4 (OC0)14

PB5 (OC1A)15

PB6 (OC1B)16

PB7 (OC2/OC1C)17

TOSC2/PG318

TOSC1/1PG419

RESET20

VCC 21

GND 22

XTAL223

XTAL124

PD0 (SCL/INT0)25

PD1 (SDA/INT1)26

PD2 (RXD1/INT2)27

PD3 (TXD1/INT3)28

PD4 (IC1)29

PD5 (XCK1)30

PD6 (T1)31

PD7 (T2)32

PG0 (WR)33

PG1 (RD)34

PC0 (A8) 35

PC1 (A9) 36

PC2 (A10) 37

PC3 (A11) 38

PC4 (A12) 39

PC5 (A13) 40

PC6 (A14) 41

PC7 (A15) 42

PG2 (ALE)43

PA7 (AD7) 44PA6 (AD6) 45PA5 (AD5) 46PA4 (AD4) 47PA3 (AD3) 48PA2 (AD2) 49PA1 (AD1) 50PA0 (AD0) 51

VCC 52

GND 53

PF7 (ADC7/TDI) 54

PF6 (ADC6/TDO) 55

PF5 (ADC5/TMS) 56

PF4 (ADC4/TCK) 57

PF3 (ADC3) 58

PF2 (ADC2) 59

PF1 (ADC1) 60

PF0 (ADC0) 61

AREF 62

GND 63

AVCC 64

U1

ATmega128-16AC

VCC

C1

0.1uF

C2

0.1uFC3

0.1uF

R1

10

R2

10

VCC

C422p

C522p

1 2Y1

16MHz

R3

10K

VCC

1 23 45 67 89 10

J1

PORTA

1 23 45 67 89 10

J2

PORTB

1 23 45 67 89 10

J3

PORTC

1 23 45 67 89 10

J4

PORTD

1 23 45 67 89 10

J5

PORTE

1 23 45 67 89 10

J6

PORTF

VCC

PA1PA3PA5PA7

PA0PA2PA4PA6

VCC

VCC

VCC

VCC

VCC

PB0PB2PB4PB6

PC0PC2PC4PC6

PB1PB3PB5PB7

PC1PC3PC5PC7

PD0PD2PD4PD6

PE0PE2PE4PE6

PF0PF2PF4PF6

PD1PD3PD5PD7

PE1PE3PE5PE7

PF1PF3PF5PF7

PA0PA1PA2PA3PA4PA5PA6PA7

PC0PC1PC2PC3PC4PC5PC6PC7

PF7PF6PF5PF4PF3PF2PF1PF0

PB0PB1PB2PB3PB4PB5PB6PB7

PD0PD1PD2PD3PD4PD5PD6PD7

PE0PE1PE2PE3PE4PE5PE6PE7

1 23 45 67 89 10

J7

ISP

VCC

PE0

RSTPB1PE1

1 23 45 67 89 1011 1213 14

J8

Header 7X2

PG0PG2

PG1PG3

PG4PD7

VCC

R410K

VCC

PG3PG4

PG0PG1PG2

RST

R510K

S1RESET

VCC

RST

C1+ 1VDD2

C1- 3

C2+ 4

C2- 5

VEE6

T2OUT7

R2IN8 R2OUT 9

T2IN 10T1IN 11

R1OUT 12R1IN13

T1OUT14

GND 15

VCC16

U2

MAX232

10uFC9

10uF

C7

10uF

C810uF

C6

VCC

10uFC10

VCC

1234 5

678

S2

SW-DIP4

PD3PD2PE1PE0

1

2

3

4

5

6

7

8

9

11

10

J9

RS232

1

2

3

4

5

6

7

8

9

11

10

J10

RS232

12

J11

7-12 VDC

D1

1N4001C1222p

C1422p

C11100uF/25V

C1310uF

IN1

3

OUT 2

GND

U37805

VCC

C150.1uF

LED0

RED

R6

2.2K

VCC

1 23 45 67 89 10

J12

JTAG

PF4PF6PF5

PF7

VCC

RST

VCC

Page 2: Etekronics.com ATMEGA128 Development Board Schematic