MOS Technology 6502 microprocessor family

Previous Generation   Related Family Next Generation
  650x
  • » 8-bit CPU
  • » Up to 14 MHz
  • » 64 KB RAM
  • » 256 bytes stack
  • » No I/O ports
28 or 40-pin DIP
44-pin plastic LCC
6800
  • » Up to 2 MHz
8080
  • » Up to 3.1 MHz
  • » 256 I/O ports
65816
  • » 16-bit CPU
  • » 8-bit data bus
  • » Up to 14 MHz
  • » 16 MB RAM
  • » 6502 emulation mode
40-pin DIP
44-pin PLCC
MOS Technology 6502 and other 650x/651x processors are a family of inexpensive 8-bit microprocessors. 6502 and 6512 processors could address 64KB of memory, other CPUs in the family could address up to 8 KB. Stack size of the 6502 was limited to 256 bytes. The processors had only 6 registers, and only one of these registers - an accumulator - could be used for arithmetic and logic operations. The 6502 microprocessor had 13 addressing modes, some of these modes made extensive use of two 8-bit index registers. The processor didn't have I/O instructions, therefore 6502-based computers used memory mapped I/O.

All microprocessors in the NMOS 6502/650x family are software compatible between each other - the differences between CPUs are in hardware (different maximum size of addressed memory, clock oscillator is on-board or external, interrupt input options). CMOS 65Cxx and 65SCxx microprocessors add new instructions and addressing modes, and new hardware features such as memory lock and bus enable signals. For more information please see list of differences between 65xx, 65Cxx and 65SCxx CPUs.

Computers
Apple I, Apple II series (except for Apple IIgs), Apple III, Atari 400, Atari 800, Commodore PET 2001, Commodore 64, Commodore 128D (also had Z80), Acorn Microcomputer. Franklin ACE 1200 (also had Z80), etc. List of machines using 6502 CPU
Links
 Manufacturers 
CMD G65SC02PEI-4

Picture of: CMD G65SC02PEI-4

4 MHz
Extended temperature range
44-pin plastic LCC
CSG 6510CBM

Picture of: CSG 6510CBM

40-pin plastic DIP
GTE G65SC02P-3

Picture of: GTE G65SC02P-3

3 MHz
40-pin plastic DIP
MOS Technology MCS6502A

Picture of: MOS Technology MCS6502A

2 MHz
40-pin side-brazed ceramic DIP
NCR 65C02A

Picture of: NCR 65C02A

40-pin plastic DIP
NTE NTE6502

Picture of: NTE NTE6502

40-pin plastic DIP
Ricoh RP2A03E

Picture of: Ricoh RP2A03E

40-pin plastic DIP
Rockwell 338-6503 (65C02)

Picture of: Rockwell 338-6503 (65C02)

1 MHz?
40-pin plastic DIP

338-6503 is a custom part number for 65C02
Synertek SY6502B

Picture of: Synertek SY6502B

3 MHz
40-pin ceramic DIP
UMC UM6502A

Picture of: UMC UM6502A

2 MHz
40-pin plastic DIP
WDC W65C02S8P-10

Picture of: WDC W65C02S8P-10

10 MHz
40-pin plastic DIP
Unknown HKE65SC02PL

Picture of: Unknown HKE65SC02PL

40-pin plastic DIP
 Modifications 
CMD G65SC02P-2

Picture of: CMD G65SC02P-2

2 MHz
40-pin plastic DIP
MOS Technology MPS6508

Picture of: MOS Technology MPS6508

40-pin plastic DIP
MOS Technology 6510CBM

Picture of: MOS Technology 6510CBM

40-pin plastic DIP
Rockwell R6503P

Picture of: Rockwell R6503P

1 MHz
28-pin plastic DIP
Rockwell R6507P / CO10745

Picture of: Rockwell R6507P / CO10745

1 MHz?
28-pin plastic DIP

CO10745 is Atari part number for 6507
Synertek SY6504

Picture of: Synertek SY6504

1 MHz
28-pin plastic DIP
Synertek 6505

Picture of: Synertek 6505

1 MHz
28-pin plastic DIP
Terms and Conditions · Privacy Policy · Contact Us (c) Copyright 2003 - 2010 Gennadiy Shvets

Search CPU-World

Search site contents:

Identify part

Identify CPU, FPU or MCU:

Related Links

At a glance

Type:
8-bit microprocessor
Introduction:
1975
Frequency (MHz):
1 - 4