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Last update: 9 January 2004

IC name:6500/1 (6570, 6571)
IC function:8-bit microcontroller
Related components:6502 (same processor core), 68HC05 (keyboard processor used in A1200)

Component documentation
IC numberManufacturerDocumentation
6500/1 (6570, 6571)MOS Technology / CSGCSG Product guide

Programmed components
IC numberPackageCBM part numberCBM part descriptionPart description
40-Pin DIP252609-02CPU 6500/1Remote control input converter
6570-3340-Pin DIP328191-01Keyboard processor (A1000)
6570-3640-Pin DIP328191-02Keyboard processor (A500, A3000)
6571R6PD40-Pin DIP315107-01Keyboard processor (CD-1221)
6571R4PL44-Pin PLCC391079-016571R4 KEYBD UP 44PIN PLCCKeyboard processor (A600)
6571R6PL44-Pin PLCC391079-01Keyboard processor (A600)
40-Pin DIP325340-01IC MPS 6500/1Plotter main processor

Positions
DevicePositionComponentPackage
CDTVU75252609-02DIP
A600U136571PLCC
A1000 keyboard PCB6570-33DIP
A500 keyboard PCBIC16570-36DIP
A3000 keyboard PCB6570-36DIP
CD-12216571DIP
VIC-1520U1325340-01DIP

DIP package pinout
PinTypeNameSignal name
CDTVA1000 keyboard PCBA500 keyboard PCBVIC-1520
1PowerVRR+5VD+5V+5V via FB3VCC
2I/OPD7unusedconnected to pin 1 of 74LS123connected to pin 8 of U4
3I/OPD6POT0Xconnected to keyboard matrixconnected to pin 7 of U4
4I/OPD5POT0Yconnected to keyboard matrixconnected to pin 6 of U4
5I/OPD4FIRE0connected to keyboard matrixconnected to pin 5 of U4
6I/OPD3XB1connected to keyboard matrixconnected to pin 4 of U4
7I/OPD2YA1connected to keyboard matrixconnected to pin 3 of U4
8I/OPD1XA1connected to keyboard matrixconnected to pin 2 of U4
9I/OPD0YB1connected to keyboard matrixconnected to pin 1 of U4
10InputXTIconnected to X3connected to crystalconnected to Y1
11OutputXTO
12PowerGNDGND
13I/OPC7unusedconnected to keyboard matrixconnected to pin 2 of P4
14I/OPC6POT1Xconnected to keyboard matrixunused
15I/OPC5POT1Yconnected to keyboard matrixunused
16I/OPC4FIRE1connected to keyboard matrixunused
17I/OPC3XB2connected to keyboard matrixunused
18I/OPC2YA2connected to keyboard matrixunused
19I/OPC1XA2connected to keyboard matrix_UP
20I/OPC0YB2connected to keyboard matrix_DN
21I/OCNTRunusedGNDunused
22I/OPB7CPCP3connected to Caps Lock LEDconnected to pin 5 of P3
23I/OPB6CPCP2connected to left Amiga keyconnected to pin 4 of P3
24I/OPB5CPCP1connected to left alt keyconnected to pin 3 of P3
25I/OPB4CPCP0connected to left shift keyconnected to pin 11 of U2
26I/OPB3AUS2connected to ctrl keyunused
27I/OPB2_KBSEconnected to right Amiga keyconnected to E3
28I/OPB1AUS1connected to right alt keyconnected to E2
29I/OPB0AUS0connected to right shift keyconnected to E1
30PowerVCC+5VD+5V+5V via FB3VCC
31I/OPA7unusedconnected to keyboard matrix_DATA_IN
32I/OPA6unusedconnected to keyboard matrixNRFD
33I/OPA5unusedconnected to keyboard matrixATTN_ACK
34I/OPA4unusedconnected to keyboard matrixunused
35I/OPA3PRDTconnected to keyboard matrixunused
36I/OPA2_KBCLOCKconnected to keyboard matrixunused
37I/OPA1_KBDATAKDATKCLK via FB1_CLK
38I/OPA0IRDTKCLKKDAT via FB2ATTN
39Input_RESconnected to pin 2 of U58connected to pin 9 of NE556connected to pin 8 of 74LS27connected to pin 12 of U2
40Input_NMI_CRW+5V+5V via FB3VCC (via RM1-3)

PLCC package pinout
PinTypeNameSignal name
A600
1PowerVRRVCC
2I/OPD7unused
3I/OPD6connected to pin 15 of CN13
4I/OPD5connected to pin 16 of CN13
5N/CNCunused
6I/OPD4connected to pin 17 of CN13
7I/OPD3connected to pin 18 of CN13
8I/OPD2connected to pin 19 of CN13
9I/OPD1connected to pin 20 of CN13
10I/OPD0connected to pin 21 of CN13
11InputXTIconnected to Y621
12OutputXTO
13PowerGNDGND
14I/OPC7connected to pin 22 of CN13
15I/OPC6connected to pin 23 of CN13
16I/OPC5connected to pin 24 of CN13
17N/CNCunused
18I/OPC4connected to pin 25 of CN13
19I/OPC3connected to pin 26 of CN13
20I/OPC2connected to pin 27 of CN13
21I/OPC1connected to pin 28 of CN13
22I/OPC0connected to pin 29 of CN13
23N/CNCunused
24I/OCNTRVCC
25I/OPB7connected to pin 4 of CN13 via R621, Q621 and R622
26I/OPB6connected to pin 14 of CN13
27I/OPB5connected to pin 13 of CN13
28I/OPB4connected to pin 12 of CN13
29I/OPB3connected to pin 11 of CN13
30I/OPB2connected to pin 10 of CN13
31I/OPB1connected to pin 8 of CN13
32I/OPB0connected to pin 6 of CN13
33PowerVCCVCC
34I/OPA7unused
35I/OPA6connected to pin 7 of CN13 and pin 2 of U36
36I/OPA5connected to pin 5 of CN13
37I/OPA4connected to pin 3 of CN13
38I/OPA3connected to pin 2 of CN13 and pin 1 of U36
39N/CNCunused
40I/OPA2connected to pin 1 of CN13 and pin 13 of U36
41I/OPA1_KB_CLOCK
42I/OPA0_KB_DATA
43Input_RES_RST
44Input_NMIVCC

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