VPP

D1
Red

D2
Green

R1
1k2 - 10k

R2
4k7

VPP

T1
BC557

C1
100nF

1

0

VIN

VCC

VPP

C3

220uF/40V

C2
100nF

AC

2

AC

4

+

1

-

3

G1
B80C800

Vin

1

GND

2

Vout

3

IC1
78L05

Vin

1

GND

2

Vout

3

IC2
78L08

T2
BC557

R3
4k7

RA2

1

RA3

2

RTCC

3

MCLR

4

VSS

5

RBO

6

RB1

7

RB2

8

RB3

9

RB4

10

RB5

11

RB6

12

RB7

13

VDD

14

OSC2

15

OSC1

16

RA0

17

RA1

18

TEXTOOL1

VCC

LPT D2 (4)

LPT D3 (5)

LPT GND (18-25)

LPT D0 (2)

LPT D1 (3)

+13V

Non inverting (74LS07) or inverting

(74LS05, 74LS06)

open collector buffers can be used.

T
e
x
t

T
e
x
t

R4

4k7

R5

4k7

LPT ACK (10)

R6
10k

R7
10k

VCC

16 - 30 V (DC)
12 - 20 V (AC)

14

7

74LS05

P16PRO programmer for PIC16Cxx microcontrollers by Bojan Dobaj

For the power supply a universal AC/DC (3 - 12V) adaptor

can be used. The switch must be in position 12V. It is

recommended to change the capacitor inside the adaptor

with capacitor for a minimum 25 V. Check the output

voltage (unloaded), it must be at least 16V for PIC16C6x

and PIC16C7x and minimum 14V for PIC16C84.

8

9

74LS05

12

13

74LS05

3

4

74LS05

5

6

74LS05

10

11

74LS05

Vpp On/Off

Vdd On/Off

Data Out

Data In

Clock

R8*
10k

C4*
330pF