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Plus4Serial.sch
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Plus4Serial.sch
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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title "Plus4Serial"
Date "2022-11-02"
Rev "2git"
Comp "SukkoPera"
Comment1 "Thanks a lot to Levente Hársfalvi (TLC)!"
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L PLUS4_USERPORT:PLUS4_USERPORT CN1
U 1 1 63CD7C11
P 3970 2080
F 0 "CN1" H 3970 2995 50 0000 C CNN
F 1 "PLUS4_USERPORT" H 3970 2904 50 0000 C CNN
F 2 "Plus4Serial:PLUS4_USERPORT" H 3970 2080 50 0001 C CNN
F 3 "DOCUMENTATION" H 3970 2080 50 0001 C CNN
1 3970 2080
1 0 0 -1
$EndComp
Wire Wire Line
3220 1530 3070 1530
Wire Wire Line
3070 1530 3070 2630
$Comp
L power:GND #PWR01
U 1 1 63CD8DC0
P 3070 2900
F 0 "#PWR01" H 3070 2650 50 0001 C CNN
F 1 "GND" H 3075 2727 50 0000 C CNN
F 2 "" H 3070 2900 50 0001 C CNN
F 3 "" H 3070 2900 50 0001 C CNN
1 3070 2900
1 0 0 -1
$EndComp
Wire Wire Line
3220 2630 3070 2630
Connection ~ 3070 2630
Wire Wire Line
3070 2630 3070 2900
Wire Wire Line
4720 1530 4870 1530
Wire Wire Line
4870 1530 4870 2630
$Comp
L power:GND #PWR02
U 1 1 63CD9FC4
P 4870 2900
F 0 "#PWR02" H 4870 2650 50 0001 C CNN
F 1 "GND" H 4875 2727 50 0000 C CNN
F 2 "" H 4870 2900 50 0001 C CNN
F 3 "" H 4870 2900 50 0001 C CNN
1 4870 2900
-1 0 0 -1
$EndComp
Wire Wire Line
4720 2630 4870 2630
Connection ~ 4870 2630
Wire Wire Line
4870 2630 4870 2900
$Comp
L Connector:DB9_Male_MountingHoles CN2
U 1 1 63CE6EFE
P 7150 2350
F 0 "CN2" H 7068 3042 50 0000 C CNN
F 1 "DB9_MALE" H 7068 2951 50 0000 C CNN
F 2 "Plus4Serial:DB_9M" H 7150 2350 50 0001 C CNN
F 3 " ~" H 7150 2350 50 0001 C CNN
1 7150 2350
-1 0 0 -1
$EndComp
Wire Wire Line
4720 1730 5205 1730
Wire Wire Line
4720 1830 5205 1830
Wire Wire Line
4720 1930 5205 1930
Wire Wire Line
4720 2130 5205 2130
Wire Wire Line
4720 2430 5205 2430
Text Label 5205 1730 2 50 ~ 0
rxd_ttl
Text Label 5205 1830 2 50 ~ 0
rts_ttl
Text Label 5205 1930 2 50 ~ 0
dtr_ttl
Text Label 5205 2130 2 50 ~ 0
dcd_ttl
Text Label 5205 2430 2 50 ~ 0
dsr_ttl
Wire Wire Line
4720 2530 5205 2530
Text Label 5205 2530 2 50 ~ 0
txd_ttl
Wire Wire Line
3220 2230 2830 2230
Text Label 2830 2230 0 50 ~ 0
rxc
Wire Wire Line
7450 1950 7525 1950
Wire Wire Line
7525 1950 7525 3025
Wire Wire Line
7525 3025 7345 3025
Wire Wire Line
7150 3025 7150 2950
Wire Wire Line
7345 3025 7345 3135
Connection ~ 7345 3025
Wire Wire Line
7345 3025 7150 3025
$Comp
L power:GND #PWR07
U 1 1 63D4A60D
P 7345 3135
F 0 "#PWR07" H 7345 2885 50 0001 C CNN
F 1 "GND" H 7350 2962 50 0000 C CNN
F 2 "" H 7345 3135 50 0001 C CNN
F 3 "" H 7345 3135 50 0001 C CNN
1 7345 3135
-1 0 0 -1
$EndComp
Wire Wire Line
3220 1630 2930 1630
Wire Wire Line
2930 1630 2930 1245
$Comp
L power:+5V #PWR06
U 1 1 63DBE84D
P 2930 1245
F 0 "#PWR06" H 2930 1095 50 0001 C CNN
F 1 "+5V" H 2945 1418 50 0000 C CNN
F 2 "" H 2930 1245 50 0001 C CNN
F 3 "" H 2930 1245 50 0001 C CNN
1 2930 1245
1 0 0 -1
$EndComp
Wire Wire Line
7450 2050 8660 2050
Text Label 8645 2750 2 50 ~ 0
~dcd
Text Label 8645 2550 2 50 ~ 0
rxd
Text Label 8645 2350 2 50 ~ 0
txd
Text Label 8645 2150 2 50 ~ 0
~dtr
Text Label 8645 2650 2 50 ~ 0
~dsr
Text Label 8645 2450 2 50 ~ 0
~rts
Text Label 8645 2250 2 50 ~ 0
~cts
Text Label 8660 2050 2 50 ~ 0
_ri
NoConn ~ 8660 2050
Text Label 5205 2330 2 50 ~ 0
cts_ttl
Wire Wire Line
4720 2330 5205 2330
Text Notes 5345 2890 0 50 ~ 0
+4 HAS NO DEDICATED\n~CTS~ PIN, BUT IF YOU\nLOOK AT THE SCHEMATICS,\nIT WAS CLEARLY DUE TO\nEND UP HERE, I.E.: WHERE\nIT WOULD BE ON THE C64.\n\nTHIS IS PROBABLY DUE TO\nTHE BUGGY HANDLING OF\nTHAT SIGNAL BY THE MOS\n6581 (ACIA), SO C= MUST\nHAVE DECIDED TO HANDLE\nTHAT SIGNAL IN SOFTWARE.
NoConn ~ 3220 1730
NoConn ~ 3220 1830
NoConn ~ 3220 1930
NoConn ~ 3220 2030
NoConn ~ 3220 2130
NoConn ~ 3220 2330
NoConn ~ 4720 2030
NoConn ~ 4720 2230
NoConn ~ 4720 1630
NoConn ~ 2830 2230
$Comp
L 74xx:74HCT04 U2
U 2 1 6333AAC9
P 7310 5420
F 0 "U2" H 7270 5420 50 0000 C CNN
F 1 "74HCT04" H 7310 5646 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 7310 5420 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/74HC_HCT04.pdf" H 7310 5420 50 0001 C CNN
F 4 "595-SN74HCT04NE4" H 7310 5420 50 0001 C CNN "MouserPN"
2 7310 5420
1 0 0 1
$EndComp
$Comp
L 74xx:74HCT04 U2
U 4 1 6333CBB5
P 7305 4820
F 0 "U2" H 7290 4825 50 0000 C CNN
F 1 "74HCT04" H 7305 4585 50 0001 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 7305 4820 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/74HC_HCT04.pdf" H 7305 4820 50 0001 C CNN
F 4 "595-SN74HCT04NE4" H 7305 4820 50 0001 C CNN "MouserPN"
4 7305 4820
-1 0 0 1
$EndComp
$Comp
L 74xx:74HCT04 U2
U 6 1 6333F309
P 6215 7455
F 0 "U2" H 6215 7772 50 0000 C CNN
F 1 "74HCT04" H 6215 7681 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 6215 7455 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/74HC_HCT04.pdf" H 6215 7455 50 0001 C CNN
F 4 "595-SN74HCT04NE4" H 6215 7455 50 0001 C CNN "MouserPN"
6 6215 7455
1 0 0 -1
$EndComp
$Comp
L 74xx:74HCT04 U2
U 7 1 633402AD
P 1310 6740
F 0 "U2" H 1540 6786 50 0000 L CNN
F 1 "74HCT04" H 1540 6695 50 0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 1310 6740 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/74HC_HCT04.pdf" H 1310 6740 50 0001 C CNN
F 4 "595-SN74HCT04NE4" H 1310 6740 50 0001 C CNN "MouserPN"
7 1310 6740
1 0 0 -1
$EndComp
NoConn ~ 6515 7455
Text Notes 6075 6825 0 50 ~ 0
SPARE
Wire Wire Line
1310 7240 1310 7305
$Comp
L Device:C C6
U 1 1 6337E932
P 785 6740
F 0 "C6" H 900 6786 50 0000 L CNN
F 1 "100n" H 900 6695 50 0000 L CNN
F 2 "Capacitor_THT:C_Disc_D7.0mm_W2.5mm_P5.00mm" H 823 6590 50 0001 C CNN
F 3 "~" H 785 6740 50 0001 C CNN
1 785 6740
1 0 0 -1
$EndComp
Wire Wire Line
785 7305 1050 7305
Wire Wire Line
1050 7305 1050 7375
$Comp
L power:GND #PWR017
U 1 1 6337E93F
P 1050 7375
F 0 "#PWR017" H 1050 7125 50 0001 C CNN
F 1 "GND" H 1055 7202 50 0000 C CNN
F 2 "" H 1050 7375 50 0001 C CNN
F 3 "" H 1050 7375 50 0001 C CNN
1 1050 7375
1 0 0 -1
$EndComp
Wire Wire Line
785 6590 785 6160
Wire Wire Line
785 6160 1050 6160
Wire Wire Line
1310 6160 1310 6240
$Comp
L power:+5V #PWR016
U 1 1 6337E94C
P 1050 6045
F 0 "#PWR016" H 1050 5895 50 0001 C CNN
F 1 "+5V" H 1065 6218 50 0000 C CNN
F 2 "" H 1050 6045 50 0001 C CNN
F 3 "" H 1050 6045 50 0001 C CNN
1 1050 6045
1 0 0 -1
$EndComp
Wire Wire Line
1050 6045 1050 6160
Wire Wire Line
785 6890 785 7305
Connection ~ 1050 7305
Wire Wire Line
1050 7305 1310 7305
Connection ~ 1050 6160
Wire Wire Line
1050 6160 1310 6160
Text Notes 8195 5165 0 50 ~ 0
NOTE THAT ALL CONTROL SIGNALS ARE\nINVERTED WRT THE RS-232 STANDARD.\nTHIS DATES BACK TO EARLY COMMODORE\nMACHINES (AND TO THE VIC-1011A),\nWHICH JUST IMPLEMENTED THE PROTOCOL\nTHEIR OWN ODD WAY, SIGH.
$Comp
L Device:R R3
U 1 1 633ED6A2
P 7795 1730
F 0 "R3" H 7865 1776 50 0000 L CNN
F 1 "10k" H 7865 1685 50 0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical" V 7725 1730 50 0001 C CNN
F 3 "~" H 7795 1730 50 0001 C CNN
1 7795 1730
1 0 0 -1
$EndComp
$Comp
L Device:R R2
U 1 1 633ED7A2
P 8065 1730
F 0 "R2" H 8135 1776 50 0000 L CNN
F 1 "10k" H 8135 1685 50 0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical" V 7995 1730 50 0001 C CNN
F 3 "~" H 8065 1730 50 0001 C CNN
1 8065 1730
1 0 0 -1
$EndComp
$Comp
L Device:R R1
U 1 1 633FDE96
P 8335 1730
F 0 "R1" H 8405 1776 50 0000 L CNN
F 1 "10k" H 8405 1685 50 0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical" V 8265 1730 50 0001 C CNN
F 3 "~" H 8335 1730 50 0001 C CNN
1 8335 1730
1 0 0 -1
$EndComp
Wire Wire Line
7795 1580 7795 1500
Wire Wire Line
7795 1500 8065 1500
Wire Wire Line
8335 1500 8335 1580
Wire Wire Line
8065 1580 8065 1500
Connection ~ 8065 1500
Wire Wire Line
8065 1500 8335 1500
Wire Wire Line
8065 1500 8065 1410
Text Label 2000 4415 0 50 ~ 0
cts_ttl
Wire Wire Line
7450 2250 7795 2250
Wire Notes Line
7655 1935 8590 1935
Wire Notes Line
8590 1935 8590 1140
Wire Notes Line
8590 1140 7655 1140
Wire Notes Line
7655 1140 7655 1935
Text Notes 8680 1670 0 50 ~ 0
THESE PULL-UPS ARE NEEDED FOR CASES\nWHEN THESE SIGNALS ARE LEFT UNCONNECTED.\nNOTE THAT +12V ON THE RS-232 SIDE WILL\nRESULT IN A LOW (I.E.: ASSERTED) TTL LEVEL.
Wire Wire Line
2385 4415 2000 4415
$Comp
L 74xx:74HCT04 U2
U 5 1 6333E12B
P 2685 4415
F 0 "U2" H 2685 4190 50 0000 C CNN
F 1 "74HCT04" H 2685 4099 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 2685 4415 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/74HC_HCT04.pdf" H 2685 4415 50 0001 C CNN
F 4 "595-SN74HCT04NE4" H 2685 4415 50 0001 C CNN "MouserPN"
5 2685 4415
-1 0 0 -1
$EndComp
Wire Wire Line
7795 2250 7795 1880
Wire Wire Line
7450 2650 8065 2650
Wire Wire Line
7450 2750 8335 2750
Wire Wire Line
8065 1880 8065 2650
Wire Wire Line
8335 1880 8335 2750
Connection ~ 8335 2750
Wire Wire Line
8335 2750 8645 2750
$Comp
L power:+12V #PWR09
U 1 1 6352CF44
P 8065 1410
F 0 "#PWR09" H 8065 1260 50 0001 C CNN
F 1 "+12V" H 8080 1583 50 0000 C CNN
F 2 "" H 8065 1410 50 0001 C CNN
F 3 "" H 8065 1410 50 0001 C CNN
1 8065 1410
1 0 0 -1
$EndComp
Text Notes 8680 2150 0 50 ~ 0
←
Text Notes 8680 2250 0 50 ~ 0
→
Text Notes 8680 2350 0 50 ~ 0
←
Text Notes 8680 2450 0 50 ~ 0
←
Text Notes 8680 2550 0 50 ~ 0
→
Text Notes 8680 2650 0 50 ~ 0
→
Text Notes 8680 2750 0 50 ~ 0
→
Connection ~ 8065 2650
Wire Wire Line
8065 2650 8645 2650
Connection ~ 7795 2250
Wire Wire Line
7795 2250 8645 2250
Wire Wire Line
7450 2450 8645 2450
Wire Wire Line
7450 2150 8645 2150
Wire Wire Line
7450 2550 8645 2550
Wire Wire Line
7450 2350 8645 2350
NoConn ~ 3220 2430
NoConn ~ 3220 2530
Wire Wire Line
4585 5320 3675 5320
Wire Wire Line
3675 5320 3675 4820
Wire Wire Line
4585 5220 3795 5220
Wire Wire Line
3795 5220 3795 5925
$Comp
L power:GND #PWR?
U 1 1 63621370
P 3795 5925
AR Path="/63599306/63621370" Ref="#PWR?" Part="1"
AR Path="/63621370" Ref="#PWR04" Part="1"
F 0 "#PWR04" H 3795 5675 50 0001 C CNN
F 1 "GND" H 3800 5752 50 0000 C CNN
F 2 "" H 3795 5925 50 0001 C CNN
F 3 "" H 3795 5925 50 0001 C CNN
1 3795 5925
-1 0 0 -1
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 63621376
P 3675 3880
AR Path="/63599306/63621376" Ref="#PWR?" Part="1"
AR Path="/63621376" Ref="#PWR03" Part="1"
F 0 "#PWR03" H 3675 3730 50 0001 C CNN
F 1 "+5V" H 3690 4053 50 0000 C CNN
F 2 "" H 3675 3880 50 0001 C CNN
F 3 "" H 3675 3880 50 0001 C CNN
1 3675 3880
1 0 0 -1
$EndComp
$Comp
L Device:CP1 C?
U 1 1 6362137C
P 6325 5735
AR Path="/63599306/6362137C" Ref="C?" Part="1"
AR Path="/6362137C" Ref="C4" Part="1"
F 0 "C4" H 6210 5689 50 0000 R CNN
F 1 "1u" H 6210 5780 50 0000 R CNN
F 2 "Capacitor_THT:CP_Radial_D5.0mm_P2.00mm" H 6325 5735 50 0001 C CNN
F 3 "~" H 6325 5735 50 0001 C CNN
F 4 "710-860010672005" H 6325 5735 50 0001 C CNN "MouserPN"
1 6325 5735
-1 0 0 1
$EndComp
Wire Wire Line
6085 5520 6325 5520
Wire Wire Line
6325 5520 6325 5585
Wire Wire Line
6085 5620 6160 5620
Wire Wire Line
6160 5620 6160 5935
Wire Wire Line
6160 5935 6325 5935
Wire Wire Line
6325 5935 6325 5885
Wire Wire Line
3620 5620 3620 5935
Wire Wire Line
3620 5935 3455 5935
Wire Wire Line
3455 5935 3455 5885
Wire Wire Line
3620 5620 4585 5620
Wire Wire Line
4585 5420 3455 5420
Wire Wire Line
3455 5420 3455 5585
Wire Wire Line
6085 5420 6680 5420
Wire Wire Line
6680 5420 6680 5585
$Comp
L Device:CP1 C?
U 1 1 63621390
P 6680 5735
AR Path="/63599306/63621390" Ref="C?" Part="1"
AR Path="/63621390" Ref="C5" Part="1"
F 0 "C5" H 6565 5689 50 0000 R CNN
F 1 "1u" H 6565 5780 50 0000 R CNN
F 2 "Capacitor_THT:CP_Radial_D5.0mm_P2.00mm" H 6680 5735 50 0001 C CNN
F 3 "~" H 6680 5735 50 0001 C CNN
F 4 "710-860010672005" H 6680 5735 50 0001 C CNN "MouserPN"
1 6680 5735
-1 0 0 1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 63621396
P 6680 5925
AR Path="/63599306/63621396" Ref="#PWR?" Part="1"
AR Path="/63621396" Ref="#PWR010" Part="1"
F 0 "#PWR010" H 6680 5675 50 0001 C CNN
F 1 "GND" H 6685 5752 50 0000 C CNN
F 2 "" H 6680 5925 50 0001 C CNN
F 3 "" H 6680 5925 50 0001 C CNN
1 6680 5925
-1 0 0 -1
$EndComp
Wire Wire Line
6680 5885 6680 5925
Wire Wire Line
3455 5215 3455 5320
Wire Wire Line
3455 5320 3620 5320
Wire Wire Line
3620 5320 3620 5520
Wire Wire Line
3620 5520 4585 5520
Wire Wire Line
3455 4915 3455 4820
Wire Wire Line
3455 4820 3675 4820
Connection ~ 3675 4820
Wire Wire Line
3675 4820 3675 3880
Wire Wire Line
5325 6245 5325 6145
Wire Wire Line
5325 6545 5325 6640
$Comp
L power:+5V #PWR?
U 1 1 636213A7
P 5325 6145
AR Path="/63599306/636213A7" Ref="#PWR?" Part="1"
AR Path="/636213A7" Ref="#PWR05" Part="1"
F 0 "#PWR05" H 5325 5995 50 0001 C CNN
F 1 "+5V" H 5340 6318 50 0000 C CNN
F 2 "" H 5325 6145 50 0001 C CNN
F 3 "" H 5325 6145 50 0001 C CNN
1 5325 6145
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 636213AD
P 5325 6640
AR Path="/63599306/636213AD" Ref="#PWR?" Part="1"
AR Path="/636213AD" Ref="#PWR08" Part="1"
F 0 "#PWR08" H 5325 6390 50 0001 C CNN
F 1 "GND" H 5330 6467 50 0000 C CNN
F 2 "" H 5325 6640 50 0001 C CNN
F 3 "" H 5325 6640 50 0001 C CNN
1 5325 6640
1 0 0 -1
$EndComp
$Comp
L Device:CP1 C?
U 1 1 636213B3
P 5325 6395
AR Path="/63599306/636213B3" Ref="C?" Part="1"
AR Path="/636213B3" Ref="C1" Part="1"
F 0 "C1" H 5440 6441 50 0000 L CNN
F 1 "1u" H 5440 6350 50 0000 L CNN
F 2 "Capacitor_THT:CP_Radial_D5.0mm_P2.00mm" H 5325 6395 50 0001 C CNN
F 3 "~" H 5325 6395 50 0001 C CNN
F 4 "710-860010672005" H 5325 6395 50 0001 C CNN "MouserPN"
1 5325 6395
1 0 0 -1
$EndComp
Wire Wire Line
3795 4720 3160 4720
Wire Wire Line
4020 4520 3160 4520
Wire Wire Line
3905 4620 3160 4620
Wire Wire Line
4250 4310 3160 4310
Wire Wire Line
6085 4520 6680 4520
Wire Wire Line
6085 4620 6680 4620
Wire Wire Line
6085 5120 7005 5120
Wire Wire Line
6085 5320 6680 5320
Wire Wire Line
3795 5120 4585 5120
Wire Wire Line
3905 5020 4585 5020
Wire Wire Line
3795 4720 3795 5120
Wire Wire Line
4020 4920 4585 4920
Wire Wire Line
3905 4620 3905 5020
Wire Wire Line
4135 4820 4585 4820
Wire Wire Line
4020 4520 4020 4920
Wire Wire Line
4250 4720 4585 4720
Wire Wire Line
4135 4415 4135 4820
$Comp
L MAX238:MAX238 U?
U 1 1 636213CD
P 5335 5070
AR Path="/63599306/636213CD" Ref="U?" Part="1"
AR Path="/636213CD" Ref="U1" Part="1"
F 0 "U1" H 5335 5985 50 0000 C CNN
F 1 "MAX238" H 5335 5894 50 0000 C CNN
F 2 "Package_DIP:DIP-24_W7.62mm_Socket_LongPads" H 5335 5070 50 0001 C CNN
F 3 "DOCUMENTATION" H 5335 5070 50 0001 C CNN
F 4 "700-MAX238ENG+" H 5335 5070 50 0001 C CNN "MouserPN"
1 5335 5070
1 0 0 -1
$EndComp
Wire Wire Line
4250 4310 4250 4720
Wire Wire Line
4585 4620 4355 4620
Wire Wire Line
4355 4620 4355 4205
Wire Wire Line
4355 4205 3160 4205
Wire Wire Line
4585 4520 4465 4520
Wire Wire Line
4465 4520 4465 4100
Wire Wire Line
4465 4100 3160 4100
Text Label 3160 4520 0 50 ~ 0
txd_ttl
Text Label 3160 4205 0 50 ~ 0
txd
Text Label 3160 4720 0 50 ~ 0
rxd
Text Label 3160 4620 0 50 ~ 0
rxd_ttl
Text Label 7905 5120 2 50 ~ 0
rts_ttl
Text Label 3160 4100 0 50 ~ 0
~rts
Text Label 3160 4310 0 50 ~ 0
~cts
Text Label 7905 4820 2 50 ~ 0
dtr_ttl
Text Label 6680 4520 2 50 ~ 0
~dtr
Text Label 6680 4620 2 50 ~ 0
~dsr
Text Label 7905 4520 2 50 ~ 0
dsr_ttl
Text Label 7910 5420 2 50 ~ 0
dcd_ttl
Text Label 6680 5320 2 50 ~ 0
~dcd
NoConn ~ 6085 4820
NoConn ~ 6085 4920
Text Notes 4805 4030 0 50 ~ 0
TTL-RS-232 LEVEL SHIFTING
$Comp
L Device:CP1 C?
U 1 1 636213EB
P 3455 5735
AR Path="/63599306/636213EB" Ref="C?" Part="1"
AR Path="/636213EB" Ref="C2" Part="1"
F 0 "C2" H 3341 5781 50 0000 R CNN
F 1 "1u" H 3341 5690 50 0000 R CNN
F 2 "Capacitor_THT:CP_Radial_D5.0mm_P2.00mm" H 3455 5735 50 0001 C CNN
F 3 "~" H 3455 5735 50 0001 C CNN
F 4 "710-860010672005" H 3455 5735 50 0001 C CNN "MouserPN"
1 3455 5735
1 0 0 -1
$EndComp
$Comp
L Device:CP1 C?
U 1 1 636213F1
P 3455 5065
AR Path="/63599306/636213F1" Ref="C?" Part="1"
AR Path="/636213F1" Ref="C3" Part="1"
F 0 "C3" H 3341 5019 50 0000 R CNN
F 1 "1u" H 3341 5110 50 0000 R CNN
F 2 "Capacitor_THT:CP_Radial_D5.0mm_P2.00mm" H 3455 5065 50 0001 C CNN
F 3 "~" H 3455 5065 50 0001 C CNN
F 4 "710-860010672005" H 3455 5065 50 0001 C CNN "MouserPN"
1 3455 5065
1 0 0 1
$EndComp
Wire Wire Line
7605 5120 7905 5120
Wire Wire Line
7605 4820 7905 4820
Wire Wire Line
6875 5020 6875 4820
Wire Wire Line
6875 4820 7005 4820
Wire Wire Line
6085 5020 6875 5020
Wire Wire Line
6875 4720 6875 4520
Wire Wire Line
6085 4720 6875 4720
Wire Wire Line
7610 5420 7910 5420
Wire Wire Line
6875 5220 6875 5420
Wire Wire Line
6875 5420 7010 5420
Wire Wire Line
6085 5220 6875 5220
Wire Wire Line
3455 5320 3060 5320
Wire Wire Line
3060 5320 3060 5120
$Comp
L power:+12V #PWR0101
U 1 1 636B5308
P 3060 5120
F 0 "#PWR0101" H 3060 4970 50 0001 C CNN
F 1 "+12V" H 3075 5293 50 0000 C CNN
F 2 "" H 3060 5120 50 0001 C CNN
F 3 "" H 3060 5120 50 0001 C CNN
1 3060 5120
1 0 0 -1
$EndComp
$Comp
L power:PWR_FLAG #FLG0101
U 1 1 636BC8D8
P 3060 5320
F 0 "#FLG0101" H 3060 5395 50 0001 C CNN
F 1 "PWR_FLAG" V 3060 5447 50 0000 L CNN
F 2 "" H 3060 5320 50 0001 C CNN
F 3 "~" H 3060 5320 50 0001 C CNN
1 3060 5320
0 -1 -1 0
$EndComp
Connection ~ 3060 5320
Wire Wire Line
5915 7455 5795 7455
Wire Wire Line
5795 7455 5795 7295
Wire Wire Line
6875 4520 7010 4520
Wire Wire Line
7610 4520 7905 4520
$Comp
L power:+5V #PWR?
U 1 1 63725B8B
P 5795 7295
AR Path="/63599306/63725B8B" Ref="#PWR?" Part="1"
AR Path="/63725B8B" Ref="#PWR0102" Part="1"
F 0 "#PWR0102" H 5795 7145 50 0001 C CNN
F 1 "+5V" H 5810 7468 50 0000 C CNN
F 2 "" H 5795 7295 50 0001 C CNN
F 3 "" H 5795 7295 50 0001 C CNN
1 5795 7295
1 0 0 -1
$EndComp
$Comp
L 74xx:74HCT04 U2
U 3 1 6333BB67
P 7305 5120
F 0 "U2" H 7295 5125 50 0000 C CNN
F 1 "74HCT04" H 7305 5346 50 0001 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 7305 5120 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/74HC_HCT04.pdf" H 7305 5120 50 0001 C CNN
F 4 "595-SN74HCT04NE4" H 7305 5120 50 0001 C CNN "MouserPN"
3 7305 5120
-1 0 0 1
$EndComp
$Comp
L 74xx:74HCT04 U2
U 1 1 633394F4
P 7310 4520
F 0 "U2" H 7275 4525 50 0000 C CNN
F 1 "74HCT04" H 7310 4746 50 0001 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 7310 4520 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/74HC_HCT04.pdf" H 7310 4520 50 0001 C CNN
F 4 "595-SN74HCT04NE4" H 7310 4520 50 0001 C CNN "MouserPN"
1 7310 4520
1 0 0 1
$EndComp
Connection ~ 3455 5320
Wire Wire Line
2985 4415 4135 4415
$EndSCHEMATC