Atari family - ATARI 1400XL

The Atari 1400 XL has the same characteristics as the Atari 800/600 XL machines except for some new features: a new custom chip called "FREDDY" which replaces the old TTL chips of the 600/800 XL to manage the memory. It has a speech synthesizer chip (SC-01) and a built-in modem (Bell 103 compatible, 300 baud).

It seems that this computer was never marketed... Another model was announced at the same time: the Atari 1450 XLD.

Image, description and specification taken with permission by

System unit	Description
Processor	MOS 6502C
Clock speed	1.79 MHz (NTSC)
RAM	64 KB
ROM	16 KB (the Basic on a cartridge)
O.S. version(s)	XL O.S.
Built-in software	Self-Test, Basic Revision B (later models have Basic Revision C)
Colors	16 colors with 16 intensity level each
Sound	4 voices, 3.5 octaves (POKEY chip)
Text modes	Five text modes, max: 40 x 24, min: 20 x 12
Graphics modes	12 graphic modes, maximum: 320 x 192 pixels
Co-processor	GTIA (video output, sprites), POKEY (sound, I/O), ANTIC (video, display lists), FREDDY (memory manager)
I/O ports	RGB, cartridge, Expansion port, Tape, RS232, Joystick
Controller port(s)	2
Parallel Bus Interface	Yes
Power supply	External power supply unit
Keyboard	Full stroke keyboard function keys (Reset, Option, Select, Start, Help, F1, F2, F3, F4)
Build-in media	modem, speech synthesiser chip