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ram.sch
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ram.sch
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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A3 16535 11693
encoding utf-8
Sheet 2 3
Title "Hannes512: C16/+4 512 kB RAM Expansion"
Date "2023-02-21"
Rev "1git"
Comp "SukkoPera"
Comment1 "Hannes Version (Update 1 with \"TED Feature\")"
Comment2 "Based on drawings by Solder/Synergy"
Comment3 "Thanks to TLC and eslapion!"
Comment4 "Licensed under CC BY-NC-SA 4.0"
$EndDescr
$Comp
L Device:C C?
U 1 1 63BD05FA
P 6485 4235
AR Path="/63BD05FA" Ref="C?" Part="1"
AR Path="/62E48B71/63BD05FA" Ref="C1" Part="1"
AR Path="/63A22C28/63BD05FA" Ref="C?" Part="1"
F 0 "C1" H 6600 4281 50 0000 L CNN
F 1 "100n" H 6600 4190 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder" H 6523 4085 50 0001 C CNN
F 3 "~" H 6485 4235 50 0001 C CNN
F 4 "C49678" H 6485 4235 50 0001 C CNN "LCSC"
1 6485 4235
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 63BD0600
P 6485 4485
AR Path="/63BD0600" Ref="#PWR?" Part="1"
AR Path="/62E48B71/63BD0600" Ref="#PWR07" Part="1"
AR Path="/63A22C28/63BD0600" Ref="#PWR?" Part="1"
F 0 "#PWR07" H 6485 4235 50 0001 C CNN
F 1 "GND" H 6485 4335 50 0000 C CNN
F 2 "" H 6485 4485 50 0001 C CNN
F 3 "" H 6485 4485 50 0001 C CNN
1 6485 4485
1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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$Comp
L power:+5V #PWR?
U 1 1 63BD0608
P 6485 3985
AR Path="/63BD0608" Ref="#PWR?" Part="1"
AR Path="/62E48B71/63BD0608" Ref="#PWR06" Part="1"
AR Path="/63A22C28/63BD0608" Ref="#PWR?" Part="1"
F 0 "#PWR06" H 6485 3835 50 0001 C CNN
F 1 "+5V" H 6500 4158 50 0000 C CNN
F 2 "" H 6485 3985 50 0001 C CNN
F 3 "" H 6485 3985 50 0001 C CNN
1 6485 3985
1 0 0 -1
$EndComp
$Comp
L AS6C4008:AS6C4008 U2
U 1 1 63F5A21F
P 8535 4290
F 0 "U2" H 8535 5405 50 0000 C CNN
F 1 "AS6C4008" H 8535 5314 50 0000 C CNN
F 2 "Package_DIP:DIP-32_W15.24mm_Socket_LongPads" H 8535 4290 50 0001 C CNN
F 3 "DOCUMENTATION" H 8535 4290 50 0001 C CNN
F 4 "913-AS6C4008-55PCN" H 8535 4290 50 0001 C CNN "MouserPN"
F 5 "-55PIN is also fine" H 8535 4290 50 0001 C CNN "Notes"
1 8535 4290
1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$Comp
L power:GND #PWR?
U 1 1 63FAC74C
P 7605 5385
AR Path="/63FAC74C" Ref="#PWR?" Part="1"
AR Path="/62E48B71/63FAC74C" Ref="#PWR08" Part="1"
AR Path="/63A22C28/63FAC74C" Ref="#PWR?" Part="1"
F 0 "#PWR08" H 7605 5135 50 0001 C CNN
F 1 "GND" H 7605 5235 50 0000 C CNN
F 2 "" H 7605 5385 50 0001 C CNN
F 3 "" H 7605 5385 50 0001 C CNN
1 7605 5385
1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
9730 4440 9285 4440
Wire Wire Line
9730 4640 9285 4640
Wire Wire Line
9730 4740 9285 4740
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
7240 3740 7340 3840
Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
7240 4140 7340 4240
Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
7240 4540 7340 4640
Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
9830 4740 9730 4840
Entry Wire Line
9830 4640 9730 4740
Entry Wire Line
9830 4540 9730 4640
Entry Wire Line
9830 4340 9730 4440
Entry Wire Line
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Entry Wire Line
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Entry Wire Line
9830 3940 9730 4040
Entry Wire Line
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Entry Wire Line
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Wire Wire Line
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Wire Wire Line
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$Comp
L power:+5V #PWR?
U 1 1 6400E4BF
P 9465 3195
AR Path="/6400E4BF" Ref="#PWR?" Part="1"
AR Path="/62E48B71/6400E4BF" Ref="#PWR09" Part="1"
AR Path="/63A22C28/6400E4BF" Ref="#PWR?" Part="1"
F 0 "#PWR09" H 9465 3045 50 0001 C CNN
F 1 "+5V" H 9480 3368 50 0000 C CNN
F 2 "" H 9465 3195 50 0001 C CNN
F 3 "" H 9465 3195 50 0001 C CNN
1 9465 3195
1 0 0 -1
$EndComp
Entry Wire Line
9830 3540 9730 3640
Wire Bus Line
7240 2895 6275 2895
Wire Bus Line
7240 2895 9830 2895
Connection ~ 7240 2895
Text Label 9730 3640 2 50 ~ 0
a3
Text Label 9730 3740 2 50 ~ 0
a17
Text Label 9730 3940 2 50 ~ 0
a5
Text Label 9730 4140 2 50 ~ 0
a7
Text Label 9730 4440 2 50 ~ 0
a2
Text Label 7340 3540 0 50 ~ 0
a18
Text Label 7340 3640 0 50 ~ 0
a16
Text Label 7340 3740 0 50 ~ 0
a1
Text Label 7340 3840 0 50 ~ 0
a0
Text Label 7340 3940 0 50 ~ 0
a8
Text Label 7340 4040 0 50 ~ 0
a9
Text Label 7340 4140 0 50 ~ 0
a10
Text Label 7340 4240 0 50 ~ 0
a13
Text Label 7340 4340 0 50 ~ 0
a11
Text Label 7340 4440 0 50 ~ 0
a12
Text Label 7340 4540 0 50 ~ 0
a14
Text Label 7340 4640 0 50 ~ 0
a15
Text GLabel 9375 3840 2 50 Input ~ 0
R_~W
Wire Wire Line
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Wire Bus Line
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Wire Bus Line
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Text GLabel 6275 5670 0 50 BiDi ~ 0
d[0..7]
Text Label 7340 4740 0 50 ~ 0
d2
Text Label 7340 4840 0 50 ~ 0
d1
Text Label 7340 4940 0 50 ~ 0
d0
Text Label 9730 4840 2 50 ~ 0
d5
Text Label 9730 4940 2 50 ~ 0
d4
Text Label 9730 5040 2 50 ~ 0
d3
Text Label 7240 5670 2 60 ~ 0
DataBus
Connection ~ 7240 5670
Text GLabel 6275 2895 0 50 Input ~ 0
a[0..18]
Text GLabel 9955 4440 2 50 Input ~ 0
~SRAM_CE
Wire Wire Line
9775 4540 9775 4440
Wire Wire Line
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Text Label 9730 4040 2 50 ~ 0
a6
Text Label 9730 4240 2 50 ~ 0
a4
Text Label 9730 4740 2 50 ~ 0
d6
Text Label 9730 4640 2 50 ~ 0
d7
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 9465 4540
Wire Wire Line
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Wire Bus Line
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Wire Bus Line
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Wire Bus Line
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Wire Bus Line
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$EndSCHEMATC