RIOT 653X datasheets – Retro Computing

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Datasheets 6530

The 6530 was produced by most licensed 6502 manufacturers, from MOS Technology/Commodore SG to Rockwell and Synertek. All production datasheets that I have seen are identical

The oldest one is a preliminary MOS datasheet for the MCS6530, missing the ordering pages of the production version.
The most complete datasheet of the 6530 are the Synertek and Rockwell versiona, first in next table.

	Synertek sy6530
	Rockwell r6530 RRIOT
	MOS Technology MCS6530 Memory IO Timer Array Preliminary Data Sheet 1975
	MOS Technology MCS6530 Memory IO Timer Array Preliminary Data Sheet 1975-08
	MOS Technology MCS6530 Memory IO Timer Array Preliminary Data Sheet 1975
	Commodore 6530 6520 datasheet
	Commodore 6530 datasheet
	MOS 6530 datasheet
>	Commodore MOS 6530 datasheet
	MOS6530

6532

	MOS 6532 RIOT Preliminary feb 1977
	Commodore MOS 6532 RIOT
	Commodore MOS 6532 RIOT
	Rockwell R6532
	Rockwell R6532
	6532 timer interrupt precautions
	6532 timer interrupt precautions
	Rockwell R6532 RAM IO Internal Timer Device (RIOT)
	synertek sy6532

CMOS 6532

The 6532 exists in CMOS variants, I have only seen the California Micro Devices GTE 65SC32 variant.

	Synertek 65C32 preliminary
	GTE G65SC32
	CMD G65SC32
	GTE G65SC32

Other RIOTs

In Rockwell databooks there are more RIOTs described. 6531, 6534. Never seen in the wild, a mention here and there of being used in pinball machines.
The timer/counter is a lot more capable, 16 bits etc.