Atmel Evaluation Kit for the SAM4E Series of Flash Microcontrollers ATSAM4E-EK ATSAM4E-EK Data Sheet

 

 

SAM4E-EK User Guide 

42067A

−SAM4E−01/2013 

15

LCD_DB3

PC11

R14

DNP

D1

DNP

TVS, SOT23-5

1

2

3

4

5

R18

0R

C34
100nF

R15

DNP

RR2

DNP

1

2

3

4

5

6

7

8

LED_A

J3

FH26-39S-0.3SHW

VDD

1

DB17

2

DB16

3

DB15

4

DB14

5

DB13

6

DB12

7

DB11

8

DB10

9

DB9

10

DB8

11

DB7

12

DB6

13

DB5

14

DB4

15

DB3

16

DB2

17

DB1

18

DB0

19

VDD

20

RD

21

WR

22

RS

23

CS

24

RESET

25

IM0

26

IM1

27

GND

28

LED-A

29

LEDK1

30

LEDK2

31

LEDK3

32

LEDK4

33

Y+

34

Y-

35

X+

36

X-

37

NC

38

GND

39

R13

47K

R17

4.7K

C32

10uF

R16

10K

C33
100nF

PIN 39

PIN 1

Z7

FTM280C34D

RR1

DNP

1

2

3

4

5

6

7

8

+3V3

+3V3

PC[0..31]

NRST

PA[0..31]

LCD_DB2

JP8

PC8

LCD_DB0

PD[0..31]

LCD_DB4

PD18

4.7k

The part is placed as 
close as possible to J4

LCD_DB9

LCD_DB13

LCD_DB12

LCD_DB11

LCD_DB10

LCD_DB16

LCD_DB15

LCD_DB14

LCD_DB17

LCD_DB5

PC2

PC1

PC0

PC3

X_LEFT

LCD_DB9

4.7k

PC6

PC5

PC4

PC7

X_RIGHT

LCD_DB7

Y_DOWN

LCD_DB8

Y_UP

4.7k

LCD_DB6

4.7k

LCD_DB6

LCD_DB7

LED_K4

LCD_DB8

LCD_DB4

LCD_DB5

LED_K3

LED_K2

LCD_DB2

LCD_DB3

LCD_DB1

LED_K1

NRST

LCD_DB0

LCD_DB1

PC19

 

The LCD backlight is made of four integrated white chip-LEDs arranged in parallel. These are driven by an AAT3155 
charge pump, MN15. The AAT3155 is controlled by PC13; the 0Ω resistor R24 is mounted in series on this line, which 
permits to use it for other custom purposes. In that case, the pull-up resistor R20 maintains the charge pump 
permanently enabled by default. 

On the anode drive line, a 0Ω resistor R18 is implemented in series for an optional current limitation. 

TP1

R24

0R

C35

1uF

R20

47K

C38

4.7uF

C36

1uF

MN15

AAT3155ITP-T1

C1+

10

C1-

9

EN/SET

11

C2+

7

C2-

6

OUTCP

8

IN

5

GND

4

D1

3

D2

2

D3

1

D4

12

C37
1uF

FB1

BN03K314S300R

+3V3

+3V3

LED_A

LED_K1

LED_K4

LED_K3

LED_K2

PC13