Eight channels LPT I/O port

General information

power voltage:	+5V DC
load current:	220 mA
input:	8 TTL level, non-protected
output:	8 TTL level, non-protected
selector lines:	-SO..7: 8 TTL level, non-protected

Appearance
Schematic and PCB draws

subject	size	file type
schematic draw	16,47 kB	KiCAD kapcs. rajz fájl
printed circuit board	66,95 kB	KiCAD nyák fájl
schematic draw (A/4)	138,05 kB	Postscript fájl
PCB solder side (A/4)	67,59 kB	Postscript fájl
PCB component side (A/4)	61,70 kB	Postscript fájl
PCB silk screen (A/4)	59,11 kB	Postscript fájl
all in one	129.96 kB	ZIP archívum

more files (pcb-, front- and back film, etc.)


Components

pozíció	név	típus/érték	pozíció	név	típus/érték
C1-5	capacitor	33 nF	J1-4	switch
C6	polarized capacitor	100 uF 16V	R1-2	resistor	330 ohm
Cs1	connector	DB25 Female	R3-11	resistor	1 kohm
Cs2	connector	3.5 mm jack	U1	IC	74LS245
Cs3-5	connector	DB9 Female	U2	IC	74LS374
D1	diode	1N4001	U3	IC	74LS138
D2	LED	3 mm green	U4	IC	74LS688
D3	LED	3 mm yellow	U5	IC	74LS157

Connectors pin-out

'PC' connector		'-S0..7 connector		'DI0..7' and 'DO0..7' connector
pin	function	pin	function	pin	function
1	-STROBE	1	-S0	1	D0
2	D0	2	-S2	2	D2
3	D1	3	-S4	3	D4
4	D2	4	-S6	4	D6
5	D3	5	GND	5	GND
6	D4	6	-S1	6	D1
7	D5	7	-S3	7	D3
8	D6	8	-S5	8	D5
9	D7	9	-S7	9	D7
10	-ACK
11	BUSY
12	PE
13	SLCT
14	-AUTOFD
15	-ERROR
16	-INIT
17	-SLCT IN
18-25	GND

Cables

1. Cable between PC and this unit
Signal lines: 1->1; 2->2; ... 16->16.
Ground lines: 18-25 -> 18-25.