Standard 80-pin TQFP cardwith PIC18F8520 MCU

EasyPIC PROv7

page 2

What's on Card

PIC18F8520 microcontroller. Featuring nanoWatt technology, it has up to 10 MIPS operation, 128K bytes of linear program memory, 3840 bytes of linear data memory, and lot of internal modules.

10MHz crystal oscillator. We carefully chose the most convenient crystal value that provides clock frequency which can be used directly, or with the PLL multipliers and dividers to create higher MCU clock value.

VCAP jumper. Some PIC18FK and all PIC18FJ microcontrollers have cores that work on 1.8V-2.5V voltage range, and peripherals that work with 3.3V and 5V voltages. Internally, those microcontrollers have power regulators which adjust the core voltage levels. In order for those devices to have a stable operation of the core, manufacturer recommends that decoupling capacitive filters should be provided, and connected between specific microcontroller pins designated with VCAP and GND. This MCU card provides a VCAP jumper which is used for this purpose. Jumper is placed by default.

USB communication lines. These two jumpers, when in USB position, connect D+ and D- lines of the on-board USB connector with RF3 and RF4 microcontroller pins. Since PIC18F8520 doesn't support USB, jumpers are in I/O position.

VUSB line jumper. For PIC18F8xJ5x devices, this jumper should be connected to VCC for enabling internal USB controller. Since PIC18F8520 doesn't support USB, this jumper is in I/O position.

ENVREG selection jumper. PIC18FJ and PIC18FK microcontrollers are using internal voltage regulator which is enabled by placing this jumper in VCC position. For PIC18F8520 this jumper is in I/O position.

EasyPIC PROv7

2

3

4

5

6

1

1

2

3

4

5

6

Figure 1: MCU card with PIC18F8520

page 3EasyPIC PROv7

RH2RH3

RE0RE1

RG0RG1RG2RG3

RG4MCLR#

VCAP

RF2RF3/DMRF4/DPRF5RF6RF7

RH7

RH

4R

H5

RH6

RF1

/USB

ENR

/RF0

RA

0R

A1

RA

2R

A3

RA

4R

A5

RC

0R

C1

RC

6R

C7

RJ4

RJ5

RJ6RJ7RC2RC3RC4RC5

RB0RB1RB2RB3RB4RB5RB6

RB7

OSC1OSC2

RJ0

RJ1

RJ2RJ3

RD

0

RD

1R

D2

RD

3R

D4

RD

5R

D6

RD

7

RH

0R

H1

RE2

RE3

RE4

RE5

RE6

RE7

30292827 3433

58575655545352

47

3635

43444546

37 38

9

495011

12

32

72 69 68 67 66 65 64 63

43

78 772423

181716151413

5678

10

7980

12

2221

2019

62 61

6059

39 40

4142

48

7131

51

70

262576 75 74 73

GNDGND

GN

DG

ND

VDD

VDD

RB0RB1RB2RB3RB4RB5

PGC/RB6

PGD/RB7

RC2RC3RC4RC5

VDD

OSC2/RA6OSC1/RA7

RJ2RJ3

RJ6RJ7

RD

0

RD

1R

D2

RD

3R

D4

RD

5R

D6

RD

7

RE2

RE3

RE4

RE5

RE6

RE7

RH

0R

H1

RJ0

RJ1

RE0RE1

RH2RH3

RG0RG1RG2RG3

RG4MCLR

RF2RF3/D-RF4/D+RF5RF6RF7

RH6RH7

VCCcore/Vcap/VDD

RA

0R

A1

RA

2R

A3

RA

4R

A5

RC

0R

C1

RC

6R

C7

RJ4

RJ5

RH

4R

H5

RF1

/VU

SBEN

VREG

/RF0

AVC

CA

GN

D

PIC18F852080pin TQFP

U1

E310uF

VCC

VCC

X110MHz

C1 22pF

C2 22pF

C3100nF

VCC

C4100nF

VCC

C5100nF

VCC

E610uF

VCC

E410uF

VCC

E510uF

VCC

E110uF

VCC

E210uF

VCC

VCC

RF0RF1

VCC

RF3/DM

RF4/DP

RF3

RF4

DM

DP

RH

2R

H3

RE0

RE1

RG

0R

G1

RG

2R

G3

RG

4M

CLR

#

RF2

RF3

RF4

RF5

RF6

RF7

RH

7R

H6

DP

DM

VCC

GN

D

VCC

GN

D

VCC GND

VCC GND

VCC

GN

D

VCC

GN

D

VCCGND

VCCGND

RJ0RJ1

RD0RD1RD2RD3RD4RD5RD6RD7

RH0 RH1RE2RE3RE4RE5RE6RE7

RB0

RB1

RB2

RB3

RB4

RB5

RB6

RJ2

RJ3

RJ6

RJ7

RC

2R

C3

RC

4R

C5

RB7

RH4RH5

RA0RA1RA2RA3

RA4RA5RC0RC1

RC6 RC7RJ4 RJ5

RF0RF1

1 23 45 67 89 10

11 1213 1415 1617 1819 2021 2223 2425 26

HD1A27

2829

3031

3233

3435

3637

3839

4041

4243

4445

4647

4849

5051

52

HD

2B

5354555657585960616263646566676869707172737475767778

HD3C

7980

8182

8384

8586

8788

8990

9192

9394

9596

9798

9910

010

110

210

310

4

HD

4D

J2

J3

J4 J5

RF1/USB ENR/RF0

J1A

Figure 2: MCU card schematics

page 4 EasyPIC PROv7

Card dimensions

Figure 3: MCU card dimensions. Values are in mils.

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